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Releases and Changelogs (SPE)

Speech Engine (SPE) is developed as RESTful API on top of Phonexia BSAPI.

Releases​

VERSIONRELEASE DATEEND OF SUPPORTMAINTAINED UNTILRELEASE TYPE
3.622024-07-032026-01-01n/aPublic
3.612024-03-272025-10-01n/aPublic
3.602023-12-052025-06-01n/aPublic
3.592023-06-202025-01-01n/aPublic
3.582023-04-032024-10-01n/aPublic
3.572023-02-012024-08-01n/aPublic
3.562022-12-152024-06-01n/aPublic
3.552022-10-032024-04-013.60Public
3.522022-07-012022-09-303.55Feature
3.512022-06-142022-09-303.55Feature
3.502022-03-232023-10-013.55Public
3.462022-02-072022-04-013.50Feature
3.452021-10-062023-05-013.50Public
3.422021-08-242021-09-303.45Feature
3.412021-07-152021-09-303.42Feature
3.402021-03-262022-10-013.45Public
3.382021-02-252021-03-303.40Feature
3.372021-02-172021-03-303.38Feature
3.362020-12-012021-03-303.37Feature
3.352020-10-012022-05-013.40Public
3.322020-08-282020-09-303.35Feature
3.312020-07-012020-09-303.32Feature
3.302020-03-272022-04-013.35Public
3.262020-03-022022-04-013.30Feature
3.252020-01-312022-04-013.26Feature
3.242020-12-182022-04-013.25Feature
3.232020-11-012022-04-013.24Feature
3.182019-10-012022-04-013.19Public
3.172019-06-282021-12-283.18Public
3.162019-04-262021-10-263.17Public
3.152019-02-282021-08-283.16Public
3.142018-12-212020-06-213.15Public
3.132018-11-192020-05-193.14Public
3.122018-08-172020-02-173.13Public
3.112018-03-152019-09-153.12Public
3.102017-12-062019-06-063.11Public
3.92017-09-082019-03-083.10Public
3.82017-06-262018-12-263.9Public
3.72017-03-272018-09-273.8Public
3.62016-12-142018-06-143.7Public
3.52016-10-042018-04-043.6Public
3.42016-09-192018-03-193.5Public
3.32016-07-112018-02-113.4Public
3.22016-04-222017-10-223.3Public
3.12016-02-152017-08-153.2Public
3.02016-02-092017-08-093.1Public
2.12015-09-162017-09-162017-09-16Public
2.02015-01-062016-07-062.1Public

Changelogs​

Speech Engine 3.62 (Public release)

Speech Engine 3.62.0, DB v1901, BSAPI 3.62.0 (2024-07-03)

  • New: Linux version now requires Rocky Linux 8 or other Linux based OS with glibc >= 2.28
  • Improved: Updated STT model RU_RU_A to version 6.2.0 (updated language model)
  • Removed: Removed deprecated 4th generation STT/KWS models
Speech Engine 3.61 (Public release)

Speech Engine 3.61.1, DB v1901, BSAPI 3.61.1 (2024-05-13)

  • Fixed: phxadmin2 now does not print message about missing configuration file, other error messages are printed to stderr instead of stdout
  • Fixed: STT model customized using LMC does not work on Windows (bug introduced in 3.61.0)

Speech Engine 3.61.0, DB v1901, BSAPI 3.61.0 (2024-03-27)

  • New: Added endpoints /server/restart and /server/shutdown to restart/shutdown the server
  • New: Added endpoint POST /technologies to configure technologies on server
  • New: Added show_all parameter to GET /technologies endpoint, to return all technologies available on the server, i.e. including those not currently running
  • New: Added possibility to set score thresholds when calling GET/POST /technologies/speakerid4 (useful to limit the number of returned results when using large speaker groups)
  • New: Added base docker image without any technology (phonexia/spe:3.61.0). Useful as a base image. Doesn't work on its own.
  • Fixed: Incorrect timestamps in multichannel diarization results
  • Fixed: Different/incorrect output in STT for empty streams (all 6. gen models)
  • Fixed: Time Analysis Extraction does not return correct total length of audio
  • Fixed: Time Analysis Extraction returns crosstalks even for channel that is reported to not contain speech
  • Deprecated: Legacy Speaker Identification technology, i.e. all endpoints under /technologies/speakerid
Speech Engine 3.60 (Public release)

Speech Engine 3.60.1, DB v1901, BSAPI 3.60.1 (2024-01-17)

  • Fixed: Docker image phonexia/spe:3.60-stt-en_us_6 does not start
  • Fixed: Phoneme Recognizer does not work in STT EN_US_A model
  • Fixed: Reading wave files in ieee_float format with out-of-range sample values, causing e.g. invalid voiceprints or "null" comparison scores

Speech Engine 3.60.0, DB v1901, BSAPI 3.60.0 (2023-12-05)

  • New: Added floating_window parameter to /technologies/speakerid4/input_stream and /technologies/speakerid4/input_stream/voiceprint endpoints, for using only last N seconds of speech from input stream
  • New: Added HU_HU_6 model for STT and KWS
  • New: All 6th generation STT packages now include also Phoneme Recognizer (previously included only with KWS), which can be useful for finetuning pronunciations for preferred phrases or for adding new/unknown words to model
  • Improved: Added stream configuration for VAD SID4_XL5 model introduced in version 3.58.0
  • Improved: Automatic detection of the number of workers now starts at least 1 worker, so that non-technology endpoints can work even if no technology is started
  • Fixed: Random Records response could not be parsed errors after receiving reply from RLS (RLS v0.14.2 is required to fix the issue)
  • Fixed: Websocket connection error may lead to accessing dealocated memory
  • Fixed: Deleting tasks can leave files locked forever
  • Fixed: Files are locked forever when task limit is reached
  • Fixed: Misleading and confusing licensing error when HW profile does not match
  • Fixed: Trace log messages during model initialization say "Unknown interface"
  • Fixed: STT_STREAM fails to process request with preferred phrases when no instance of STT with the same model is running
  • Fixed: STT: Different/incorrect output for empty streams (fixed only in CS_CZ_6 and SK_SK_6 for now)
  • Fixed: STT: Space is not allowed as separator in wordlist file in CLI interface
  • Fixed: STT: Still incorrect timestamp values in N-best output of stream transcription
  • Fixed: STT: Extra "+" character shown in Confusion Network output
  • Fixed: STT: A "+" character gets removed from wordlist backup file in customized STT model
Speech Engine 3.59 (Public release)

Speech Engine 3.59.0, DB v1901, BSAPI 3.59.0 (2023-06-20)

  • New: PESQ estimation in SQE now considers only voice segments (via newly added VAD)
  • New: Grammar rules for words-to-numbers conversion added to ES, EN_US, EN_US_A and PL_PL 6th generation STT models
  • New: Empty grammar rules for words-to-numbers conversion added to all remaining 6th generation STT models
  • New: Added changelogs for STT models (located in bsapi/stt/data/models_<model> directory)
  • Improved: Updated language models of 6th generation STT
    • RU*RU_6 *(version 6.1.0)_
    • RU*RU_A_6 *(version 6.1.0)_
  • Fixed: *.bs.usr configuration files are ignored by phxadmin and phxadmin2
  • Fixed: ❗❗❗ Unable to open audio files with non-ASCII/Unicode characters in the name or path on Windows
Speech Engine 3.58 (Public release)

Speech Engine 3.58.0, DB v1901, BSAPI 3.58.0 (2023-04-03)

  • New: Added 6th generation models for STT and KWS
    • UK*UA_6 *(Ukrainian)_
    • SR*RS_6 *(Serbian)_
  • New: Added VAD SID4_XL5 model, which detects speech/non-speech exactly the same way as SID4 XL5 model does
  • Improved: Reduced memory consumption by tuning ONNX runtime parameters. Mostly visible when processing (many) long recordings in STT.
  • Improved: SID4 comparator now returns actual score for recordings containing less than 3 seconds of speech (it returned score -9999 in versions 3.55 to 3.57)
    NOTE: It is still strongly recommended to NOT rely on results from such very short recordings. Only longer recordings give results with appropriate confidence.
  • Improved: Better Windows version detection
  • Fixed: Generic model for SQE may fail when processing very short recordings
  • Fixed: Unable to initialize technologies when SPE is launched using UNC path on Windows
Speech Engine 3.57 (Public release)

Speech Engine 3.57.0, DB v1901, BSAPI 3.57.0 (2023-02-01)

  • New: AGE XL4 and XL5 models (for compatibility with SID4 XL4 and XL5 voiceprints)
Speech Engine 3.56 (Public release)

Speech Engine 3.56.0, DB v1901, BSAPI 3.56.0 (2022-12-15)

  • New: GID XL5 model (for compatibility with SID4 XL5 voiceprints)
  • Fixed: Incorrect timestamp values in STT N-best results of stream transcription
  • Fixed: Training of LID may get stuck in infinite loop in some cases
Speech Engine 3.55 (Public release)

Speech Engine 3.55.1, DB v1901, BSAPI 3.55.1 (2022-11-09)

  • New: Added 6th generation models for STT and KWS
    • KK*KZ_6 *(Kazakh)_
    • BN*6 *(Bengali)_
  • Fixed: phxcmd lpextract with -archive parameter and input directory creates empty archive
  • Fixed: Misleading error message if a HW license with an invalid HW profile is supplied

Speech Engine 3.55.0, DB v1901, BSAPI 3.55.0 (2022-10-03)

  • New: Added SID4 model XL5 with optional backwards compatibility with model XL4
  • New: Added phxcmd[.exe] command line interface for technologies
  • New: Added 6th generation models for STT and KWS
    • DE_DE_6
    • NL_6
    • KA_GE_6
  • Improved: Updated language models of 6th generation STT
    • CS*CZ_6 *(version 6.5.2)_
    • SK*SK_6 *(version 6.1.1)_
  • Fixed: Cannot create Audio Source Profile in some circumstances when using only user calibration
  • Fixed: Possible deadlock in TTS output stream
  • Fixed: Corrupt audio file will crash the VAD technology and cause an Unexpected exception: null pointer error for further processing
  • Fixed: Errors like Could not parse word class definitions due to unnecessarily required write permissions for certain files
  • Removed: Removed old SID model S
  • + all changes included in Feature Preview releases 3.51 and 3.52 (see below)

NOTE: Windows 7 / Windows Server 2008 R2 and older are no longer supported!

Speech Engine 3.52

Speech Engine 3.52.0, DB v1901, BSAPI 3.52.0 (2022-07-01)

  • New: Models for STT and KWS with features of CS*CZ_6 *(new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)_
    • IT_IT_6
    • RU_RU_6
  • Fixed: Significantly improved speed of diarization model XL4 on longer audios
  • Removed: Removed old STT/KWS model for IT_IT
Speech Engine 3.51

Speech Engine 3.51.0, DB v1901, BSAPI 3.51.0 (2022-06-14)

  • New: Added option to set number of workers and RTP input streams limit automatically
  • New: Added "Settings Adviser" feature, which checks technologies and workers configuration against current CPU and eventually suggests (in log messages) changes for optimal performance
  • New: Added 6th generation of ZH_CN STT, KWS and PHNREC (with features of CS_CZ_6: new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)
  • Fixed: Use even ports for input RTP streams (according to RFC 3550) instead of odd ports
  • Fixed: Wrong detection of OS version on newer Windows
  • Changed: Windows version now requires Universal C Runtime (UCRT) installed (normally installed as part of Windows Update)
  • Changed: Logging is set to both file and console by default (this might be undesired for running SPE as service, i.e. changing the logging setting might be wise)
  • Changed: Number of workers and RTP input streams limit are set automatically by default
  • Changed: Require initialization of all configured technologies by default
  • Removed: Dropped support for Windows 7 / Windows Server 2008 R2 and older
  • Removed: Removed 4th generation of STT/KWS model for PL_PL
Speech Engine 3.50 (Public release)

Speech Engine 3.50.7, DB v1901, BSAPI 3.50.6 (2022-08-25)

  • Fixed: Processing of audio files bigger than 1 GiB stops prematurely with empty result

Speech Engine 3.50.6, DB v1901, BSAPI 3.50.5 (2022-07-29)

Speech Engine 3.50.5, DB v1901, BSAPI 3.50.5 (2022-07-11)

  • Fixed: Timestamps in stream STT may not be in chronological order, resulting in decreased accuracy

Speech Engine 3.50.4, DB v1901, BSAPI 3.50.4 (2022-05-10)

  • Fixed: Processing slowdown and high CPU usage on Windows platform – the following technologies/models used multiple threads when they should not:
    STT/KWS – all 6th generation models
    LID – L4 model
    DIAR, GID, SID4 – XL4 model
    SQE – GENERIC model
    VAD – GENERIC3 model

Speech Engine 3.50.3, DB v1901, BSAPI 3.50.3 (2022-04-28)

  • New: Models for STT and KWS with features of CS*CZ_6 *(new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)_
    • PL_PL_6
    • AR_KW_6

Speech Engine 3.50.2, DB v1901, BSAPI 3.50.2 (2022-04-15)

  • Fixed: Licensing subsystem fails to get license when multiple applications run under different OS user accounts

Speech Engine 3.50.1, DB v1901, BSAPI 3.50.1 (2022-04-05)

  • Fixed: Wrong pronunciations of some foreign words in STT model CS_CZ_6
  • Fixed: SPE may respond with STT result version 5 instead of version 6 if result was found in cache
  • Fixed: Hardware profile file contains extra NULL character

Due to change in STT results content, all STT results are removed from cache (database) during update!

Speech Engine 3.50.0, DB v1900, BSAPI 3.50.0 (2022-03-23)

  • New: Support for word classes in STT preferred phrases (currently in CS_CZ_6 only)
  • New: phxadmin2 was promoted from BETA to production
  • New: phxadmin2 automatically renames renamed technologies or models, and shows information about renamed technologies or models
  • Improved: Updated VAD GENERIC_3 model
  • Improved: Updated following 6th generation models for STT and KWS (new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)
    • VI_VN_6
    • FR_FR_6
    • CS*CZ_6 *(updated VAD, tuned LM)
    • ES_6 (STT only)
    • EN_US_A_6 (STT only)
  • Fixed: Bad example voiceprints in SID4 L4 model
  • Fixed: STT grapheme checking inconsistent behavior
  • Fixed: STT NL_NL_5 (possibly also other 5th gen models) is much slower in 3.45 than in 3.30
  • Fixed: Missing more specific error messages when opening file fails on Windows platform
  • Removed: Old S and L models for AGE technology (now only XL and L4 are supported)
  • Removed: Old S and L models for LID technology (now only L3, XL3 and L4 are supported)
  • + all changes included in Feature Preview release 3.46 (see below)
Speech Engine 3.46

Speech Engine 3.46.0, DB v1900, BSAPI 3.46.0 (2022-02-07)

  • New: STT: Single word in preferred phrase is now preferred in any sentence context (previously it was preferred only in single-word utterances)
  • New: STT: Faster initialization of "dynamic adding of words" feature (now ~0.1 s, before ~0.5 s)
  • New: phxadmin2 added to installation manual
  • New: Models for STT and KWS with features of CS*CZ_6 *(new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)_
    • TR_TR_6
    • SK_SK_6
    • FA_6
  • Improved: Models for STT and KWS, updated and aligned with CS*CZ_6 features *(new VAD generation, dynamic adding of words in preferred phrases, increased transcription precision via updated decoder)_
    • AR_XL_6
    • SV_SE_6
    • HR_HR_6
    • EN_US_6
    • PS_6
  • Fixed: Dynamic adding of words in STT does not support UTF-8 characters wider than 16 bit
  • Fixed: STT crashes on zero probability in LM
  • Fixed: Invalid products in the license file are skipped instead of causing an error
  • Changed: MySQL database is no longer supported in favor of MariaDB (more details about migration in doc/UPDATE.txt)
  • Changed: Better phxadmin2 usage descriptions
  • Changed: phxadmin2 --version output format (3.45.0, 6118, 2021-10-07)
  • Changed: phxadmin2 technology show now uses colon to separate technology and model (consistent with "technology enable")
  • Removed: user setting for maximum number of pending requests (the setting was ignored anyway)
Speech Engine 3.45 (Public release)

Speech Engine 3.45.7, DB v1701, BSAPI 3.45.8 (2022-05-06)

  • Fixed: Processing slowdown and high CPU usage on Windows platform – the following technologies/models used multiple threads when they should not:
    STT/KWS – all 6th generation models
    LID – L4 model
    DIAR, GID, SID4 – XL4 model
    SQE – GENERIC model
    VAD – GENERIC3 model

Speech Engine 3.45.6, DB v1701, BSAPI 3.45.7 (2022-04-14)

  • Fixed: Licensing subsystem fails to get license when multiple applications run under different OS user accounts

Speech Engine 3.45.5, DB v1701, BSAPI 3.45.6 (2022-02-22)

  • Fixed: Some STT models may fail to initialize with BsapiException: SPhxBasicDecoderI(2): <unspecified file>: cannot open file error
  • Fixed: Exception during license acquisition: License system failure (1303) on Windows with NET or FLS-distributed licenses when license expiration was in year 2038 or later

Speech Engine 3.45.4, DB v1800, BSAPI 3.45.5 (2022-01-14)

❗❗❗ STT users are strongly encouraged to update ❗❗❗

  • Fixed: Gradual speed drop and memory leak in STT
  • Fixed: Words-to-numbers conversion significantly decreases STT performance

Speech Engine 3.45.3, DB v1800, BSAPI 3.45.4 (2021-12-08)

  • Fixed: KWS fails with "Can not create temporary file" exception

Speech Engine 3.45.2, DB v1800, BSAPI 3.45.3 (2021-11-29)

  • Fixed: LMC does not work with 6th generation of Czech and Spanish models
  • Fixed: More specific error messages when opening file fails
  • Changed: Spanish 6th generation of STT/KWS renamed from ES*ES_6 to ES_6
    *(incorrect name was used in SPE 3.45.1)_

Speech Engine 3.45.1, DB v1800, BSAPI 3.45.1 (2021-11-22)

  • New: Added 6th generation of EN_US KWS/PHNREC
  • New: Added 6th generation of ES_ES STT, KWS and PHNREC
  • Fixed: Memory leak in STT CS_CZ_6 model
  • Fixed: STT CS_CZ_6 with preferred phrases reports class words as OOV (out of vocabulary)
  • Fixed: STT returns error on models which don't support preferred phrases even if phrases were not specified
  • Fixed: STT slowdown if "words to be added to language model" are not specified
  • Fixed: KWS sometimes saves keyword list with minus infinity log probability
  • Fixed: PESQ score in SQE is not always in range <-0.5, 4.5>
  • Fixed: DIAR XL4 incorrectly detects various technical signals and noises as a speaker
  • Fixed: TTS "info" output lists voices twice
  • Fixed: Output stream does not accept "localhost" as destination address on some operation systems

Speech Engine 3.45.0, DB v1800, BSAPI 3.45.0 (2021-10-06)

  • New: Added 6th generation of EN_US and EN_US_A STT (KWS/PHNREC will be added in one of the upcoming updates)
  • New: Added XL4 model for GID (for compatibility with SID4 XL4 voiceprints)
  • New: STT preferred phrases v2 with ability to dynamically add words to language model (currently in CS_CZ_6 only)
  • New: Endpoint /technologies/speakerid/clustervpset for clustering voiceprint set
  • New: Input streams over WebSocket (see GET /input_stream/websocket)
  • New: SQE: Added enable_pesq switch for Perceptual Evaluation of Speech Quality (PESQ) score estimation (PESQ is turned off by default for performance reasons)
  • Fixed: Empty "info" in VAD result when recording contains 0 seconds of speech for model GENERIC_3
  • Fixed: Incorrect timestamps in PHNREC results
  • Fixed: Segmentation fault when dynamically changing preferred phrases with new STT decoder (new decoder is currently used only in CS_CZ_6)
  • Fixed: Word separator is considered an invalid grapheme for CZ models in LMC
  • Improved: RLS-related messages are now logged at "debug" level, not "trace" level
  • Changed: STT language model customization marked as BETA
  • Removed: 4th generation of STT/KWS/PHNREC model for HR_HR
  • + all changes included in Feature Preview releases 3.41 and 3.42 (see below)
Speech Engine 3.42

Speech Engine 3.42.0, DB v1701, BSAPI 3.42.1 (2021-08-24)

  • New: Added /doc endpoint for serving REST API documentation in HTML format
  • New: New VAD model GENERIC_3 with improved accuracy + new VAD for 6th generation of CS_CZ STT, KWS and PHNREC
  • New: Added 6th generation of VI_VN STT, KWS and PHNREC
  • Fixed: New decoder does not propagate error messages
  • Improved: Updated doc/Phonemes_for_STT_and_KWS.pdf document for 6th generation of VI_VN
  • Improved: Updated decoder in 6th generation of CS_CZ STT, which should slightly increase recognition precision

Known issues:

  • When using preferred phrases containing some of the class words with 6th generation of CS_CZ STT, these words are reported as "out of vocabulary" and the phrase is ignored
  • New VAD model GENERIC_3 does not work in VAD_STREAM technology
Speech Engine 3.41

Speech Engine 3.41.0, DB v1701, BSAPI 3.41.0 (2021-07-15)

  • New: STT language model customization (LMC) via REST API _(see Usage examples -> Speech To Text -> Create customized model in API documentation)_NOTE: customized model is placed to shared directory, see more info in the SPE directories article.
  • New: Request ID can be specified in HTTP header X-Request-ID
  • New: Possibility to set source port for output stream
  • New: Added SQE technology on stream
  • New: Added Perceptual Evaluation of Speech Quality (PESQ) score estimation to SQE results
  • New: Following word classes are transcribed more accurately in 6th generation of CS_CZ STT
    • male/female first name and surname
    • municipality
    • street
  • Fixed: LMC may use wrong paths on Windows platform
  • Improved: Removed + symbol from LMC phrases in STT output
  • Improved: Updated decoder in 6th generation of CS_CZ STT, which should slightly increase recognition precision

Known issue: When using preferred phrases containing some of the class words with 6th generation of CS_CZ STT, these words are reported as "out of vocabulary" and the phrase is ignored.

Speech Engine 3.40 (Public release)

Speech Engine 3.40.10, DB v1701, BSAPI 3.40.11 (2022-02-21)

  • Fixed: Exception during license acquisition: License system failure (1303) on Windows with NET or FLS-distributed licenses when license expiration was in year 2038 or later

Speech Engine 3.40.9, DB v1701, BSAPI 3.40.10 (2022-01-13)

❗❗❗ STT users are strongly encouraged to update ❗❗❗

  • Fixed: Voices in TTS info output were listed twice
  • Fixed: Gradual speed drop and memory leak in STT
  • Fixed: Words-to-numbers conversion significantly decreases STT performance

Speech Engine 3.40.8, DB v1701, BSAPI 3.40.5 (2021-08-18)

  • Improved: Better audio resampler in player (/utils/player/output_stream) and TTS (/external/technologies/tts/*) for better audio quality output
  • Fixed: phxadmin2 error when disabling technology and specifying technology name twice
  • Fixed: Language name is truncated in LID result when name contains space character
  • Fixed: Fixes and improvements in numeric grammar for STT SK_SK_5 (words not converted to numbers in various cases)

Speech Engine 3.40.7, DB v1701, BSAPI 3.40.4 (2021-06-30)

  • Fixed: Invalid SQL statement on update of SPE - fixed SQLite update script from v1601 to v1602

Speech Engine 3.40.6, DB v1701, BSAPI 3.40.4 (2021-06-22)

  • Fixed: Getting information about the language model containing the LPA caused an internal server error
  • Fixed: Acapela connector works again (was broken in 3.40.4)
  • Fixed: Fixes from 3.35.8 (MySQL database schema update required)

Speech Engine 3.40.5, DB v1700, BSAPI 3.40.4 (2021-05-09)

  • Fixed: When trying to register webhook over existing webhook for any stream technology, SPE returns HTTP 400 (1069) error instead of HTTP 500
  • Fixed: Invalid SQL syntax when overwriting voiceprint in a database

Speech Engine 3.40.4, DB v1700, BSAPI 3.40.4 (2021-05-28)

  • Fixed: BSAPI 3.40.3 does not include fixes from 3.40.2
  • Fixed: Different results in LID L4 for waveform and languageprint input
  • Fixed: Requested segment is out of waveform range error in TAE
  • Fixed: End time may be before start time in STT "one best" transcription
  • Fixed: When creating a new LID language pack, hash of the file contained in the custom language pack report is incorrectly calculated (occurs mainly in Windows)
  • Fixed: Items builtin_language_models and custom_language_models in a body of POST /technologies/languageid/languagepacks/{name} are now optional. At least one of them must not be empty.
  • Fixed: Better server response message when language model was not found during creation of new LID language pack
  • Fixed: Minor bugs in licensing subsystem

Speech Engine 3.40.3, DB v1700, BSAPI 3.40.3 (2021-05-12)

  • New: Added 6th generation of HR_HR, FR_FR, PS, AR_XL and SV_SE of STT, KWS and PHNREC with improved accuracy
  • Fixed: Various log and error messages fixed
  • Fixed: Acapela TTS connector puts incorrectly named item languages in output JSON
  • Improved: Updated doc/Phonemes_for_STT_and_KWS.pdf document with phonemes for 6th generation of HR_HR, FR_FR, PS, AR_XL and SV_SE

Speech Engine 3.40.2, DB v1700, BSAPI 3.40.2 (2021-04-30)

  • Fixed: LMC does not work with CS_CZ_6 online (stream) configuration
  • Fixed: Sample rate in Opus files is incorrect
  • Fixed: Various "[ERRFMT]" log messages fixes

Speech Engine 3.40.1, DB v1700, BSAPI 3.40.1 (2021-04-16)

  • Fixed: 6th generation STT/KWS stream result may start with words from end of previous stream
  • Fixed: Some licensing error messages are not shown in log
  • Fixed: Missing file names in log messages in SID and SID4 tasks
  • Fixed: Keyword list may not work if XML is used as input and optional fields threshold or pronunciations are used
  • Fixed: phxdamin2 cannot configure VAD_STREAM technology
  • Improved: Updated document doc/Phonemes_for_STT_and_KWS.pdf

Speech Engine 3.40.0, DB v1700, BSAPI 3.40.0 (2021-03-26)

  • New: Added 6th generation of CS_CZ  of STT, KWS and PHNREC with improved accuracy
  • Changed: Using new licensing system under the hood (internal change)
    • NOTE: When using SPE with FLS (Floating License Server), you need to upgrade FLS to version 2.x to be able to use SPE 3.40+ with FLS.
  • + all changes included in Feature Preview releases 3.36, 3.37 and 3.38 (see below)

Known bug: Keyword list may not work if XML is used as input and optional fields threshold or pronunciations are used. There is no problem when using JSON as input.

Speech Engine 3.38

Speech Engine 3.38.0, DB v1700, BSAPI 3.38.0 (2021-02-25)

  • New: Training of LID Language Packs (no more need for command line tools... finally!)
  • New: LID Language Packs allow to store meta-files
  • New: New entity "LID Language Model" (equivalent of *.lpa LanguagePrint Archive)
  • Improved: Updated STT model RU_RU_A to version 4.6.0 of (updated language model)
  • Removed: Support for RLS-enforced licences in command line applications
  • Removed: FeaturePasterRepeat warning on null/empty repeat vector
Speech Engine 3.37

Speech Engine 3.37.1, DB v1601, BSAPI 3.37.0 (2021-02-18)

  • Fixed: Missing phxadmin2 tool in the Windows package

Speech Engine 3.37.0, DB v1601, BSAPI 3.37.0 (2021-02-17)

  • New: New administration tool phxadmin2, allowing to perform phxadmin actions non-interactively, e.g. from scripts
  • New: Added 5th generation of PS (Pashto) of STT, KWS and PHNREC
  • Fixed: Internal subsystems are uninitialized in reverse order than it should be
  • Fixed: Creation of SID4 audio source profile fails if path parameter is empty
  • Improved: Better log message when switching to webhook
  • Improved: Debug log level now shows task start and finish messages
Speech Engine 3.36

Speech Engine 3.36.0, DB v1601, BSAPI 3.35.3 (2020-12-01)

  • New: Added some useful information to log messages:
    • Stream ID in task-related log messages
    • Audio length in debug log messages
    • Workers and streams info in debug log messages
  • New: Possibility to obtain information about input RTP connection (see GET /input_stream/rtp/info)
  • New: Endpoint to get languageprint information (see POST /technologies/languageid/lpinfo)
  • Improved: Result of languageprint extraction now contains speech length for each languageprint (see GET /technologies/languageid/extractlp)
  • Improved: Output RTP packet payload size changed from 480 to 160 bytes
  • Fixed: SSRC in output RTP packet is now set to random 32-bit value
  • Fixed: RTP packets with payload type >=95 in input RTP streams are now ignored
Speech Engine 3.35 (Public release)

Speech Engine 3.35.9, DB v1602, BSAPI 3.35.5 (2021-06-30)

  • Fixed: Invalid SQL statement on update of SPE - fixed SQLite update script from v1601 to v1602

Speech Engine 3.35.8, DB v1602, BSAPI 3.35.5 (2021-06-21)

  • Fixed: Race condition in speaker models may lead to inconsistency in database, causing e.g. "Extraction error: value already extracted" exception (MySQL database schema update required)
  • Fixed: Prevent creating a duplicate speaker model (or calibration set, audio source profile) with a different letter case in the name

Speech Engine 3.35.7, DB v1601, BSAPI 3.35.5 (2021-05-09)

  • Fixed: Invalid SQL syntax when overwriting voiceprint in a database

Speech Engine 3.35.6, DB v1601, BSAPI 3.35.5 (2021-03-24)

  • Fixed: One more issue in detection of certain USB license tokens

Speech Engine 3.35.5, DB v1601, BSAPI 3.35.4 (2021-02-22)

  • Fixed: Creation of SID4 audio source profile fails if path parameter is empty
  • Improved: Better log message when switching to webhook
  • Improved: Debug log level now shows task start and finish messages

Speech Engine 3.35.4, DB v1601, BSAPI 3.35.4 (2020-12-14)

  • Fixed: STT/KWS model AR_XL_5 has incorrect name and does not start
  • Fixed: Missing KWS model AR_XL_5
  • Fixed: Processing of some short recordings causes TwoGmmCalibThreshold is not finite error
  • Fixed: STT preferred phrases "out of vocabulary" (OOV) warning message is now more verbose

Speech Engine 3.35.3, DB v1601, BSAPI 3.35.3 (2020-11-24)

  • New: Internal support for SAMPA phonetic alphabet
  • New: Updated STT model RU_RU_A to version 4.5.0 of (updated language model)
  • New: Updated STT/KWS/PHNREC model AR_XL to version 5.2.0 (updated language model, changed phonemes notation to X-SAMPA)
  • Fixed: Cannot create new output stream due to hanging unfinished tasks
  • Fixed: Task is not removed from pool when result is delivered via Webhook
  • Fixed: Some log messages contain format placeholder instead of numbers
  • Fixed: Missing <silence/> label in STT confusion network output
  • Fixed: STT confusion network contains <silence/> tags with confidence greater than 1.0
  • Fixed: Diarization crashes during processing
  • Fixed: Diarization XL4 crashes on file with no speech
  • Fixed: SID voiceprint extraction on stream is affected by previous run
  • Fixed: Incorrect number of LID L4 languages in documentation
  • Improved: Database drop scripts
  • Improved: Updated document doc/Phonemes_for_STT_and_KWS.pdf

Speech Engine 3.35.2, DB v1600, BSAPI 3.35.2 (2020-10-22)

  • Fixed: detection of certain USB license tokens

Speech Engine 3.35.1, DB v1600, BSAPI 3.35.1 (2020-10-13)

  • Fixed: Missing input stream task name in log messages
  • Fixed: Missing arguments in "word not found" error messages (when using preferred phrases)
  • Changed: Configurable STT Confusion Network threshold min_word_posterior_probability changed from log probability to normal probability (i.e. the value visible in Confusion Network results)

Speech Engine 3.35.0, DB v1600, BSAPI 3.35.0 (2020-10-01)

  • New: LID model L4 was promoted to production (LID BETA_L4 renamed to LID L4)
  • New: Added new language tag documentation (doc/Technology_LID_L4_Language_tags.pdf)
  • New: Updated STT model CS_CZ_5 to version 5.2.1 (fixes faulty transcription of numbers into Roman format)
  • New: Added configurable STT Confusion Network threshold (in technology configuration file)
  • Fixed: STT didn't work with 4th and older generation models after introduction of the Preferred phrases feature in SPE 3.32
  • Fixed: Update from SPE 3.30 causes errors in STT result cache
  • Fixed: memory leak in logging system
  • Fixed: Typo in name of es-XA language in LID model L4 default language pack (es-XA7 -> es-XA)
  • Fixed: Time Analysis segfaults on audio with 3+ channels
  • Fixed: vpextract_s_calib.bs config file not working
  • Fixed: WebSocket reply to PING control frame does not follow the protocol specification
  • + all changes included in Feature Preview releases 3.31 and 3.32 (see below)

NOTE: Due to the change in STT results content, a**ll STT results will be removed from cache (database) during update!**

Speech Engine 3.32

Speech Engine 3.32.0, DB v1500, BSAPI 3.32.0 (2020-08-28)

  • New: Added support for Webhooks and WebSockets in stream processing
  • New: Added support for preferred phrases in 5th generation of STT (see POST /technologies/stt or POST /technologies/stt/input_stream)
  • New: Added possibility to get multiple STT result types at once using single request (result_type query parameter now supports multiple values)
  • New: Added phrase start- and end times in STT "n-best" result
  • New: Added new Diarization model XL4
  • Fixed: Results of STT stream and SID/SID4 stream voiceprint do not contain task ID, stream ID and task execution time
Speech Engine 3.31

Speech Engine 3.31.2, DB v1500, BSAPI 3.31.0 (2020-08-17)

  • Fixed: MySQL session is not returned to the session pool if RELOAD privilege is not granted in the database, which leads to exhausting of all sessions and server subsequently stops working

Speech Engine 3.31.1, DB v1500, BSAPI 3.31.0 (2020-07-02)

  • Fixed: SQLite database update from version v1401 fails

Speech Engine 3.31.0, DB v1500, BSAPI 3.31.0 (2020-07-01)

  • New: SPE now requires CentOS 7 or other Linux based OS with glibc >= 2.17
  • New: Added instructions for updating SPE (see doc/UPDATE.txt file)
  • New: Added new LID model BETA_L4
  • New: Audio Source Profile can be now stored in SPE storage without the need for registration
  • Fixed: STT 5th generation confusion network output contains extra legacy _SILENCE_ tokens with weird timestamps
  • Fixed: Stream ID missing in debug log record
  • Fixed: SID4 cannot use Audio Source Profile created with different number of calibration chunks
  • Improved: Updated document doc/Phonemes_for_STT_and_KWS.pdf
  • Removed: Removed VBS plugin
  • Removed: Following STT models are obsolete and not available and supported anymore:
    CZ_PROMPT3, CZ_IT1, CZ_TELCO2, CZ2, CZ_ENERGY1, CZ_FIN1, SK_TELCO3, SK1, EN_L1, EN_N1, EN_GB2, EN_S1, ES_AMER1, FR1, RU_A7, RU7
Speech Engine 3.30 (Public release)

[lightweight-accordion title="Speech Engine 3.30 (Public release)" anchor="3.30" title_background_color="#f2f4f5"]

Speech Engine 3.30.14, DB v1401, BSAPI 3.30.14 (2021-03-24)

  • Fixed: One more issue in detection of certain USB license tokens

Speech Engine 3.30.13, DB v1401, BSAPI 3.30.13 (2020-09-11)

  • New: Updated STT and KWS model AR_XL to version 5.1.0

Speech Engine 3.30.12, DB v1401, BSAPI 3.30.11 (2020-08-17)

  • Fixed: MySQL session is not returned to the session pool if RELOAD privilege is not granted in the database, which leads to exhausting of all sessions and server subsequently stops working

Speech Engine 3.30.11, DB v1401, BSAPI 3.30.11 (2020-08-11)

  • Fixed: Words with probability lower than 0.01 are now not included in STT Confusion Network output (to remove "irrelevant clutter" from the output)

Speech Engine 3.30.10, DB v1401, BSAPI 3.30.10 (2020-07-29)

  • New: Updated STT model RU_RU_A to version 4.4.0

Speech Engine 3.30.9, DB v1401, BSAPI 3.30.9 (2020-07-01)

  • New: Added 5th generation of HR_HR (Croatian) of STT, KWS and PHNREC
  • Fixed: SPE crashes due to buffer overflow on corrupted recording

Speech Engine 3.30.8, DB v1401, BSAPI 3.30.8 (2020-06-16)

  • Fixed: STT failure during text-to-number translation in SK_SK_5 model

Speech Engine 3.30.7, DB v1401, BSAPI 3.30.7 (2020-06-03)

  • Fixed: Increasing memory consumption of SPE
  • Fixed: KWS delay for some 5th generation stream configurations

Speech Engine 3.30.6, DB v1401, BSAPI 3.30.6 (2020-05-22)

  • Fixed: New stream is counted towards running streams even if stream creation fails
  • Fixed: Incorrect start timestamps on silence tags in STT output
  • Fixed: Incorrect start timestamps on null words in STT confusion network output
  • Fixed: STT n-best output is missing channel info

Speech Engine 3.30.5, DB v1401, BSAPI 3.30.5 (2020-05-14)

  • New: Added new STT model EN_US_A_5
  • Fixed: Wrong example data in STT model EN_US_5
  • Fixed: Segmentation fault in G2P in KWS when no pronunciation was generated

Speech Engine 3.30.3, DB v1401, BSAPI 3.30.3 (2020-04-27)

  • Fixed: Corrected code to SV_SE for Swedish STT, KWS and PHNREC
  • Fixed: Invalid SQL statement: no such table error in SPE log when using SQLite after update to database schema v1300
  • Fixed: When task limit is reached, server now responds with HTTP status 503 Service Unavailable instead of 500 Internal server error

Speech Engine 3.30.2, DB v1400, BSAPI 3.30.2 (2020-04-23)

  • New: Added 5th generation of SE_SV (Swedish) of STT, KWS and PHNREC
  • Fixed: Playing TTS via output stream may not be smooth
  • Fixed: RTP output stream produces packets without timestamp which may cause problems with some RTP clients

Speech Engine 3.30.1, DB v1400, BSAPI 3.30.1 (2020-04-08)

  • Fixed: TTS Acapela connector does not work due to renamed parameters
  • Fixed: SPE fails to read reformatted but still valid technologies.xml
  • Fixed: Zero start- and end time stamps for "null" words in STT confusion-network output
  • Improved: Words in STT confusion-network are now sorted by confidence

Speech Engine 3.30.0, DB v1400, BSAPI 3.30.0 (2020-03-25)

  • New: Added 5th generation of FR_FR (French) of STT, KWS and PHNREC
  • New: Updated and significantly improved phonemes document for STT and KWS (see doc directory)
  • New: Added n-best output to all 5th generation STT stream results
  • New: Added support for native numbers and dates notation in n-best output in 5th generation CS_CZ and SK_SK STT (in both file- and stream processing)
  • New: Each request in SPE log gets unique ID, allowing better request tracing. Also HTTP status and REST error code is logged in case of error
  • New: Updated STT model RU_RU_A to version 4.3.0
  • Changed: All utterance_lenght parameters (introduced in 3.24) renamed to speech_length in endpoints returning voiceprint
  • Changed: Parameters languageCode and languageCodes (introduced in 3.25) renamed to language_code and language_codes in TTS endpoints
  • Changed: Parameter target (introduced in 3.25) in POST /external/technologies/tts query renamed to path
  • Improved: Better error message on upload/registering of new file when file cannot be opened
  • Fixed: Processing long files results in premature end without error message
  • + all changes included in Feature Preview releases 3.23 to 3.26 (see below)

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively
Speech Engine 3.26

Speech Engine 3.26.0, DB v1400, BSAPI 3.26.0 (2020-02-28)

  • New: Added new SID4 XL4 model
Speech Engine 3.25 (Public release)

Speech Engine 3.25.1, DB v1400, BSAPI 3.25.0 (2020-02-07)

  • New: Improved handling of "Accept" HTTP header for better CORS support
  • Fixed: TTS saves raw file and returns internal server error
  • Fixed: TTS connector gets stuck when recoding takes long time

Speech Engine 3.25.0, DB v1400, BSAPI 3.25.0 (2020-01-30)

  • New: Added input stream statistics to result of DELETE /input_stream/rtp call
  • New: Added support for CORS (can be enabled by server.cors_enable property)
  • New: Added Acapela TTS integration, see External Text To Speech (supported only in Linux SPE builds!)
Speech Engine 3.24

Speech Engine 3.24.0, DB v1400, BSAPI 3.24.0 (2019-12-10)

  • New: Significantly improved 5th generation STT stream performance
    • Added neural network based voice activity detection – improves the end-of-utterance detection
    • Decoder is now restarted after each segment – i.e. "word corrections' never go beyond segment boundary
    • Added per-segment confidence, computed as an average of all word confidences in a sentence – helps in judging the results 'credibility'
    • Reduced delay of obtaining results in output – allows for faster detection of barge-in, e.g. in voicebot application
  • New: All 5th generation STT models now use Minimum Bayes-Risk Decoding for Confusion Network construction
    • Confusion Network results now contain precise start- and end times for each individual alternative word
  • New: KWS confidence value calculation can be modified using confidence_shift and confidence_sharpness values (see KWS results explained article for more details)
  • New: Added utterance_length to SID/SID4 voiceprint results
  • New: Added /output_stream and audio file player (/utils/player/output_stream) endpoints
  • New: Added 5th generation of ARXL (Arabic Levantine) (Beta version) of STT, KWS and PHNREC
    (combines both North- and South Levantine, hence the custom code AR_XL    )_
  • Changed: Changed endpoints, results and properties using the term 'stream' to use 'input_stream'
  • Changed: Technology models named DEFAULT are renamed to GENERIC
    • stop SPE and then run phxadmin --configure-tech to automatically update affected technologies configuration
    • modify accordingly SPE REST API calls in your application, if applicable
  • Fixed: STT doesn't work with models customized using LMC
  • Fixed: Incorrect end times for <segment/> token in STT results

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively
Speech Engine 3.23

Speech Engine 3.23.0, DB v1300, BSAPI 3.23.0 (2019-11-01)

  • Changed version to 3.23.0 to synchronize with BSAPI
  • Fixed: SPE sends IP address in Host: HTTP header instead of hostname
  • Fixed: SPE sometimes outputs "[ERRFMT]" string to log messages instead of actual value
Speech Engine 3.18 (Public release)

Speech Engine 3.18.3, DB v1300, BSAPI 3.22.2 (2019-12-09)

  • Fixed: STT on stream may cause assert violation when waiting for stream timeout on no input data
  • Fixed: SPE sends IP address in Host: HTTP header instead of hostname
  • Fixed: SPE sometimes outputs "[ERRFMT]" string to log messages instead of actual value

Speech Engine 3.18.2, DB v1300, BSAPI 3.22.1 (2019-10-14)

  • Fixed: Customized STT model fails on Windows with Request for next state but ending state reached. error message

Speech Engine 3.18.1, DB v1300, BSAPI 3.22.0 (2019-10-01)

  • New: DICTATE technology has been renamed to STT*STREAM (/technologies/dictate -> /technologies/stt/stream)
    *(for backward compatibility, the /technologies/dictate endpoint is internally redirected)_
  • New: SID/SID4 stream now allows gradually getting voiceprint from the stream (see /technologies/speakerid4/stream/voiceprint)
  • New: Unicode characters in file names are now supported on Windows platform
  • New: Added LLR score to GID result (as score_llr value, see /technologies/genderid)
  • New: Added 'per_channel' parameter to Diarization for processing multi-channel recordings
  • New: Added configuration option to not start SPE if some technology doesn't start (server.require_all_configured_technologies)
  • Fixed: Random SIGSEGV crashes in CS_CZ_5 STT
  • Fixed: KWS CS_CZ_5 ingnores keyword thresholds
  • Fixed: Duplicated output from KWS
  • Fixed: KWS online configurations for models CS_CZ_5 and NL_NL_5
  • Fixed: phxadmin increases number of instances in configuration instead of setting it
  • Fixed: phxclient is streaming slower than expected
  • Fixed: Redefinition of block in used configuration causes segmentation faults

NOTE: Due to the change in GID results content, all GID results will be removed from cache (database) during update!

Speech Engine 3.17 (Public release)

Speech Engine 3.17.3 (2019-08-22) - DB v1200, BSAPI 3.21.3

  • Fixed: KWS getting phonemes/graphemes in specific circumstances returns unknown error
  • Fixed: duplicated output from KWS

Speech Engine 3.17.2 (2019-08-02) - DB v1200, BSAPI 3.21.2

  • Fixed: KWS stream results are displayed with a delay

Speech Engine 3.17.1 (2019-07-22) - DB v1200, BSAPI 3.21.1

  • Added 5th generation of ES_ES (Spanish) of STT/Dictate/KWS/PHNREC

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively

Speech Engine 3.17.0 (2019-06-27) - DB v1200, BSAPI 3.21.0

  • Added L4 model to GID and AGE technologies, i.e. they now support also SID4 L4 voiceprints
  • Added silence detection in Dictate
  • Added support for RLS capacities
  • Added possibility to specify multiple destinations in server.logging.destination option
  • Phonexia Browser configuration files are now included in data collected by
    phxadmin --report command
  • Fixed inability to define phrases in some KWS 5th generation models (caused by missing sil phoneme)
Speech Engine 3.16 (Public release)

Speech Engine 3.16.3 (2019-06-06) - DB v1200, BSAPI 3.20.3

  • Fixed regression from 3.16.2: SID4 voiceprint comparator produces inconsistent results

Speech Engine 3.16.2 (2019-06-03) - DB v1200, BSAPI 3.20.2

  • Added 5th generation of RU_RU (Russian) and EN_US of STT/Dictate/KWS/PHNREC

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively

Speech Engine 3.16.1 (2019-05-17) - DB v1200, BSAPI 3.20.1

  • Fixed: Symbols with diacritics in file names (and also speaker model, group names, etc ..) causes errors when using MySQL
  • Fixed: SID4 voiceprint comparator produces inconsistent results

NOTE: Due to issue in SID4 comparator, all SID4 results related to Audio Source Profiles will be deleted!

Speech Engine 3.16.0 (2019-04-26) - DB v1101, BSAPI 3.20.0

  • Default value of server.n_realtime_workers changed from 0 to 8
  • File size limit server.upload_max_filesize is now taken into account also when registering new file
  • Added SID4 streams
  • Added endpoint for updating existing Audio Source Profile
  • SID4 calibration technology renamed: SID4CALIBSET -> SID4CALIB
  • Mean normalization support in Audio Source Profiles
  • Added cache for Audio Source Profiles, see server.audio_source_profiles_cache_size property
  • Added False Acceptance Calibration cache, see server.bsapi_comparator_fa_cache_size
  • Fixed: phxclient prints help if running without parameters
  • Fixed: UTF-8 symbols are not escaped in phxclient output anymore
  • Fixed: names of languages in custom language pack don't contain r character anymore
  • Fixed: wrong parameter for stopping server in init.d script template
Speech Engine 3.15 (Public release)

Speech Engine 3.15.6 (2018-03-14) - DB v1101, BSAPI 3.19.2

  • Added SK_SK (Slovak) 5th generation of STT, Dictate, KWS and PHNREC

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively

Speech Engine 3.15.5 (2019-03-08) - DB v1101, BSAPI 3.19.1

  • Fixed SID4 result cache is not invalidated when speaker model is changed
  • Add 'prioritize' role to the default 'admin' user

Speech Engine 3.15.4 (2019-02-28) - DB v1100, BSAPI 3.19.0

  • Added SID v4 technology
  • Resource lock for language pack didn't work with MySQL database
  • Removed SID L2 model
Speech Engine 3.14 (Public release)

Speech Engine 3.14.3 (2018-01-29) - DB v1000, BSAPI 3.18.0

  • Fixed phxadmin exiting with error with some argument combinations

Speech Engine 3.14.2 (2018-12-21) - DB v1000, BSAPI 3.18.0

  • Speed up phxadmin technology listing
  • Fixed getting of Dictate's and KWS's results may sometimes take a long time
  • Fixed license error cause all already initialized instances of technology with same model are lost
  • Fixed command line options with wrong prefix are not ignored anymore
  • Added KWS/STT NL_NL (Dutch) 5th generation
  • Added KWS/STT CS_CZ (Czech) 5th generation
  • Added PHNREC PL_PL (Polish) 5th generation
  • Upgraded Time Analysis Extractor Technology (switched to STT 5th gen VAD, set cross talk threshold to 0.5 sec)
  • Fixed PHNREC segmentation goes beyond recording length
  • Fixed WAV with no speech cause error
  • Fixed Spanish and English KWS returns incorrect timestamps
  • Fixed pronunciation of keyword may not be generated

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively
Speech Engine 3.13 (Public release)

Speech Engine 3.13.3 (2018-11-28) - DB v1000, BSAPI 3.17.0

  • Fixed KWS stream is not reinitialized after usage anymore
  • Fixed stream save data to file without name if parameter path is empty

Speech Engine 3.13.2 (2018-11-19) - DB v1000, BSAPI 3.17.0

  • Loading of plugins is configurable, disabled by default
  • Fixed database query may return old data - only MySQL was affected
  • KWS now supports phrases in keyword list
  • Added endpoint for self-compare voiceprint set (/technologies/speakerid/comparevpset)
  • Support for Phonexia RLS
  • Added prioritization of tasks
  • Added wfilter_speech_signal_length output item into the SQE output
Speech Engine 3.12 (Public release)

Speech Engine 3.12.2 (2018-09-25) - DB v900, BSAPI 3.16.1

  • Fixed phxclient use websocket instead of polling
  • Fixed bug: some corrupted recordings may lead to crash
  • Fixed bug: silence and voice may overlap in VAD segmentation

Speech Engine 3.12.1 (2018-08-17) - DB v900, BSAPI 3.16.0

  • Fixed an apostrophe in a file name may cause server error
  • Fixed server may bind to the already binded port on Linux
  • Fixed cached result is send to webhook target
  • Added EULA to the production package
  • Added Denoiser technology
  • Allow comparing voiceprint with speaker model/group
  • Fixed /technologies/diarization/split fails if parameter target doesn't contain wav suffix or if suffix missing
  • GID and AGE technologies accept also SID voiceprint as an input
  • Getting voiceprints for all speaker models for given speaker group
  • Minimum speech length for extracting SID calibration voiceprint is 60s for newly created calibration sets
  • Lower case keyword cause error with some models (cs_CZ)
  • Added a new STT and KWS PL_PL (Polish) model version 5.0.0 (the first model of 5th generation)
  • Added more accurate G2P (5th generation only)
  • Fixed phoneme recognizer doesn't make phonemes for phnrec_ru_ru.bs
  • Fixed phoneme recognizer with configuration phnrec_cs_cz.bs doesn't transcript short recordings
  • Fixed missing configuration of phnrec for HR_HR4
  • Fixed STT segmentation – a segment doesnt break on a long silence, creates false crosstalks
  • Phoneme recognizer - all phonemes has channel 0 in multi channel recording in some models (cs_CZ)

NOTE: STT output format has changed in 5th generation:

  • _DELETE_ token was changed to <null/>
  • _SILENCE_ and <sil/> tokens were changed to <silence/>
  • <s> and </s> tokens were changed to <segment> and </segment> respectively
Speech Engine 3.11 (Public release)

Speech Engine 3.11.3 (2018-19-06) - BSAPI 3.15.0

  • Update from SPE 3.9 deletes all files from SID models and calibration sets when using SQLite database

Speech Engine 3.11.2 (2018-06-06) - BSAPI 3.15.0

  • Fixed empty keyword list produced internal server error
  • Better recording format detection
  • Fixed possible server crash on Windows

Speech Engine 3.11.1 (2018-03-15) - BSAPI 3.15.0

  • Fixed SIDCalib and KWS technologies were not reinitialized if error occurs
  • Restart MySQL DB transaction when deadlock occurs
  • Added webhooks for asynchronous requests
  • Changed default log verbosity level to 'debug'
  • Speaker model and group is possible to prepare with calibration
  • Dictate now supports incremental mode
  • Added resource for compare voiceprint sets
  • Optimized SID speed, use DB cache for calibrated voiceprints of speaker models (removed option server.db.sid_model_calib_vp_cache_size)
  • Fixed data may leak between one RTP stream to another
  • Fixed error when client doesn’t send whole samples to stream
  • Phxadmin now checks immediately that user already exists during adding user
  • Fixed premature access to the result of VBS stream may lead to error
  • Update to BSAPI 3.15.0
  • Added support for 64bit float wav format
  • Fixed BSAPI may crash when recording's header is invalid
  • Fixed Dictate produces different results on second and next run
  • Fixed Dictate CS_CZ last segment of transcription has negative end time
  • Fixed Phoneme Recognizer with configuration phnrec_pl_pl.bs not working
  • Fixed bug: Dictate EN not working properly with a random input buffer size
Speech Engine 3.10 (Public release)

Speech Engine 3.10.3 (2018-01-18) - BSAPI 3.14.0

  • Fixed audio converter race condition
  • Added configuration option "server.db.sid_model_calib_vp_cache_size"
  • Documentation and manual update

Speech Engine 3.10.2 (2017-12-06) - BSAPI 3.14.0

  • Saving logs to database (MySQL only)
  • Added generating of reports (phxadmin with parameter 'report')
  • Added possibility to prepare only one file in calibration set (see API changes)
  • Speed up SID when calibration is used
  • Use MariaDB connector instead of MySQL connector
  • Updated systemd service template - added dependency on network-online.target
  • Added voice-print merge resource (/technologies/speakerid/vpmerge)
  • Added resource which returns tasks of all users (/tasks)
  • Added version of technology model to resource /technologies
  • Added version of BSAPI to resource /server/info
  • Added groups which speaker model is member of to resource /technologies/speakerid/speakermodels/{name}
  • Login of a user can contain any characters except these: /:\*?"<>|
  • Fixed connection to MySQL database may be lost in case of hight load
  • Fixed SID Stream requires calibration technology even if parameter 'calibset' was not specified
  • Fixed premature access to the result of SID stream may lead to error
  • Update to BSAPI 3.14.0
  • Renamed PL -> PL_PL models for KWS and STT and updated to version 4.0.0
  • Updated STT RU_RU_A model to version 4.1.0
  • Updated KWS and STT DE_DE models to version 4.0.0
  • Updated STT CS_CZ model to version 4.1.0
Speech Engine 3.9 (Public release)

Speech Engine 3.9.3 (2017-10-23) - BSAPI 3.13.0

  • Fixed capital letters in file suffix may cause errors if the file is registered
  • Fixed PHNREC may return error for some audio files
  • Fixed utils resources allow to create file without suffix. Suffix ".wav" is automatically added if the file has no suffix

Speech Engine 3.9.2 (2017-09-08) - BSAPI 3.13.0

  • Fixed possible deadlock in MySQL database when moving files to calibration set
  • Fixed time ranges doesn't properly work for multichannel recordings and for FLAC and OPUS
  • Fixed parameter "from_time" may cause corruption of processing data
  • Fixed STT may produce incorrect time stamps in confusion network result for multichannel recordings
  • Fixed Removing recording from Speaker model does not invalidate SID result in cache - only on MySQL
  • Fixed concurent access may cause errors on MySQL database
  • Fixed typo in VBS resource path "/vbs/watchlists/[name]/verify/stream" (there was "wachlist")
  • Fixed stream returns error when no data was sent
  • Fixed extraction of calibration voiceprint take count only last channel in multichannel recording
  • Resource "/technologies" doesn't require authentication anymore
  • Added possibility to distinguish BSAPI errors from SPE errors in response header
  • phxadmin supports generation of hardware profile (parameter "hwgen") same as hwgen tool
  • phxadmin doesn't require license anymore
  • Added list of result versions (doc/result_versions.txt)
  • Added STT_TR model
  • Fixed stream returns error when no data was sent
  • Added KWS benchmark
  • Added PHNREC benchmark
  • Benchmark data are versioned
  • Added checking validity of keyword list
  • Added SID calibration set allows store metafiles
  • Added possibility to get calibration voice-print from calibration set
  • Update BSAPI to v3.13.0
  • Lower STT memory consumption
  • Added new STT HR_HR model 4.0.0
  • Added new STT AR_KW model 4.0.0 (replacing old AR model)
  • Updated STT DE_DE model to version 4.0.0
  • Fixed STT may return empty segmentation and crash without error message
  • Updated KWS CS_CZ model to version 4.0.0
  • Added new KWS HR_HR model 4.0.0
  • Added stream KWS NL_NL model
  • Fixed configuration file for PHNREC AR contains wrong IID
  • Fixed unable to initialize PHNREC ZH
  • Fixed PHNREC with model SLOVAK does not work
  • Fixed KWS with model SLOVAK returns invalid pronunciation
  • Fixed wrong IID in configuration of PHNREC PL
  • Updated Dictate CS_CZ model to version 4.0.0
  • Fixed SID stream extractor with model L3, XL3 does not work
  • Fixed SID stream with model L3 / XL3 throw error after processing of multiple streams
Speech Engine 3.8 (Public release)

Speech Engine 3.8.3 (2017-06-26) - BSAPI 3.12.0

  • Fixed it is possible to create speaker model or calibration set with character that is invalid for file system
  • Fixed remove RTP stream (created with parameter "path") without send any data may cause stop processing all RTP streams
  • Fixed server may get stuck during shutdown
  • Fixed unable to initialize MySQL database with init.sql script if database has not set default engine to InnoDB
  • Added new technology Phoneme Recognition (PHNREC) - /technologies/phnrec
  • Added new command line parameter "version" to phxspe
  • Added new RTP payloads 35 (Lin16, 8000Hz, 2ch) and 36 (Lin16, 8000Hz, 1ch)
  • Voice-print extractor and comparator now supports calibration
  • Checking audio-file format during registration
  • Update to BSAPI 3.12.0
  • Add missing configuration for stream mode in SID models L3, XL3
  • Update voice-print format for SID models L2 and S (added i-vector to VP). It is forward and backward compatible with previous version.
  • Added KWS TR_TR and AR_KW models
  • Fixed KWS ZH calibration
  • Updated KWS PS model v1.2.0
  • Updated STT NL_NL model v4.1.0
  • Updated STT CS_CZ_FIN model v4.1.0
  • Fixed STT doesn't transcript file with model SK_TELCO3
Speech Engine 3.7 (Public release)

Speech Engine 3.7.3 (2017-04-21) - BSAPI 3.11.0

  • Remove old models for STT and KWS
  • Fixed SPE 3.7.2 contains wrong version of BSAPI that may cause some errors

Speech Engine 3.7.2 (2017-03-27) - BSAPI 3.11.0

  • Fixed registering VAD stream returns HTTP code 500 if realtime workers limit exceeded
  • RTP streams now support payload 0 (PCMU) and 8 (PCMA)
  • Added new configuration option "stream.http.timeout"
  • Update BSAPI to 3.11.0
  • Added French stream KWS
  • Added new model STT DE_DE 3.0.0
  • Added nonspeech segment to VAD output
  • Fixed STT SK_TELCO returns empty transcription
  • Fixed STT FR transcription of second channel was shifted
  • Fixed KWS Pashto needs Dutch data
  • Fixed STT ES_AMER1 may returns empty transcription
  • Updated models STT RU_RU, RU_RU_FIN, RU_RU_A to 4.0.0
  • Updated models STT CS_CZ, CS_CZ_FIN, CS_CZ_ENERGY, CS_CZ_TELCO, CS_CZ_IT to 4.0.0
  • Updated KWS DE_DE model to version 3.0.0
  • Updated KWS RU_RU model to version 4.0.0
  • Updated KWS CS_CZ model to version 3.0.0
Speech Engine 3.6 (Public release)

Speech Engine 3.6.5 (2017-03-22) - BSAPI 3.10.2

  • All benchmark requests without optional parameter "path" ends with error

Speech Engine 3.6.4 (2017-03-10) - BSAPI 3.10.2

  • Processing file with SID with huge calibration set may take a long time

Speech Engine 3.6.3 (2017-02-23) - BSAPI 3.10.2

  • Fixed stream may be deleted by garbage collector immediately after creation
  • Fixed Utils and Benchmarks may cause resource lock error
  • Update BSAPI to 3.10.2
  • Fixed Time analysis extractor sometimes crash
  • Fixed STT EN 4.0.0 and NL_NL 4.0.0 returns <s>, <sil/> and "silence" segments
  • Fixed stream KWS EN configuration

Speech Engine 3.6.2 (2017-01-05) - BSAPI 3.10.1

  • Fixed error handling when using websockets

Speech Engine 3.6.1 (2016-12-14) - BSAPI 3.10.1

  • Fixed unable to remove HTTP stream if stream was configured to store data to a file and no data was sent
  • Fixed unable to find license file if path contains special characters [Windows]
  • Added VAD benchmark
  • Added SQE benchmark
  • Added keyword threshold to keyword list
  • Added stream TAE
  • Fixed websocket may not be correctly closed in some cases
  • Changed result for SQE (see API documentation)
  • CPU information in benchmark results does not contains processor codename anymore (it may be inaccurate)
  • Stream technologies VAD and KWS now supports incremental mode (query parameter "result_mode" in POST /technologies/*/stream)
  • Support for logging in separate thread (configuration parameter "server.logging.enable_async"), disabled by default
  • Renamed and updated KWS models: ITALIAN -> IT_IT, DUTCH -> NL_NL
  • Added Dictate model CZ_PROMPT
  • Added STT models: IT_IT, NL_NL (based on DNN), RU_FIN, CZ_PROMPT
  • Updated STT models: AR, CZ, CZ_ENERGY, CZ_FIN, CZ_IT, CZ_TELCO, EN (based on DNN), ZH
  • Updated KWS model ZH
  • Updated VAD model DEFAULT
  • Update BSAPI to 3.10.1
  • New default file logging destination ("log" folder) with daily file rotation and purge after 5 days
  • VBS plugin now supports log file rotation
Speech Engine 3.5 (Public release)

Speech Engine 3.5.3 (2016-10-25) - BSAPI 3.9.1

  • Fixed starting several SID tasks at the same time with newly created SID model may cause database inconsistency

Speech Engine 3.5.2 (2016-10-21) - BSAPI 3.9.1

  • Added french STT
  • Fixed "is_last" flag was not properly set in results of stream technologies SID, KWS, VAD
  • Fixed stream VAD used wrong configuration file, that caused the technology not work
  • Fixed wrong stream VAD result name (SpeakerIdentificationStreamMultiResult -> VoiceActivityDetectionStreamResult)

Speech Engine 3.5.1 (2016-10-06) - BSAPI 3.9.1

  • Update BSAPI to 3.9.1

Speech Engine 3.5.0 (2016-10-04) - BSAPI 3.9.0

  • Added global confidence to one best result in STT
  • Update BSAPI to 3.9.0
Speech Engine 3.4 (Public release)

Speech Engine 3.4.4 (2016-09-23) - BSAPI 3.8.0

  • Fixed server require old database schema (v100)
  • Fixed speed up MySql database requests for file search
  • Added API changes for version 3.4.x to API documentation

Speech Engine 3.4.3 (2016-09-20) - BSAPI 3.8.0

  • Fixed server returns error for KWS phoneme request (/technologies/keywordspotting/phonemes) if only KWS or Stream KWS was running

Speech Engine 3.4.2 (2016-09-19) - BSAPI 3.8.0

  • Added stream VAD (/technologies/vad/stream)
  • Added stream KWS (/technologies/keywordspotting/stream)
  • Added technology benchmarks for AGE, DIAR, GID, LID, SID, STT (/technologies/{TECHNOLOGY}/benchmark)
  • Added request to get voice-print info (/technologies/speakerid/vpinfo)
  • Added usage examples to API documentation
  • Add configuration options for TCP connection settings
  • Added VAD segmentation to Time Analysis technology
  • Support to acquire and compare language-prints
  • LID technology was separated to LIDC (comparator) and LIDE (extractor)
  • Support websockets for pending operations
  • Added server health check request (GET /status)
  • Update BSAPI to 3.8.0
Speech Engine 3.4 (Public release)

Speech Engine 3.3.2 (2016-08-23) - BSAPI 3.6.1

  • Added configuration option to disable OPUS and FLAC files in storage

Speech Engine 3.3.1 (2016-08-19) - BSAPI 3.6.1

  • Fixed resource stay locked for some time after task is finished
  • Minor fixes in documentation

Speech Engine 3.3.0 (2016-07-11) - BSAPI 3.6.1

  • Phonexia Server renamed to Speech Engine
  • Fixed some pending operations are not processed until new pending operation is created
  • Fixed early access to stream SID result may cause server crash
  • Fixed check if user is active during authentication process
  • Fixed custom pronunciation in keyword list does not take effect
  • Added parallel starting of technologies (configuration parameter 'server.technology_multithread_initialization') - default is disabled
  • Added resource locking (configuration parameter 'server.enable_resource_locker') - default is enabled
  • Added request POST /technologies/diarization/split to create multi-channel recording by diarization - each channel corresponds to one speaker
  • Added request GET /technologies/keywordspotting/phonemes to get supported phonemes
  • Added log files rotation (configuration parameters 'server.logging.file.rotation' and 'server.logging.file.purge_count')
  • Added support for FLAC and OPUS files - it is possible to upload and process these files, but requests which produce new files always produces WAV files
  • Added request GET /admin/roles to list user roles
  • Added VBS (Voice Biometry Server) plugin
  • Added result of GET /server/info contains information about plugins
  • 32-bit architecture (i386) is not supported anymore
  • Updated BSAPI to 3.6.1