¶ Azure SR Plugin 1.27.0
Sep 27, 2023
Microsoft Azure Speech Recognition (SR) Plugin 1.27.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The plugin is available for the following UMS versions:
1.7.0
1.8.0
The binaries are currently available for the following Linux distributions:
- Red Hat / CentOS 7
unimrcp-azure-sr-1.7.25-1.el7.x86_64.rpm
unimrcp-azure-sr-1.8.5-1.el7.x86_64.rpm- Red Hat / CentOS 8
unimrcp-azure-sr-1.7.25-1.el8.x86_64.rpm
unimrcp-azure-sr-1.8.5-1.el8.x86_64.rpm- Ubuntu 18.04 LTS
unimrcp-azure-sr_1.7.25-bionic_amd64.deb
unimrcp-azure-sr_1.8.5-bionic_amd64.deb- Ubuntu 20.04 LTS
unimrcp-azure-sr_1.7.25-focal_amd64.deb
unimrcp-azure-sr_1.8.5-focal_amd64.deb- Ubuntu 22.04 LTS
unimrcp-azure-sr_1.7.25-jammy_amd64.deb
unimrcp-azure-sr_1.8.5-jammy_amd64.deb
¶ Summary
This release adds support for phrase list, language identification and speaker diarization.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ 
New Features
- Added support for phrase list to improve recognition accuracy.
- Added support for language identification.
- Added support for speaker diarization.
¶ 
Fixed Problems
- None.
¶ 
Configuration Parameters
- Added new attributes 'language-identification' and 'candidate-languages' to the element 'ws-streaming-recognition'.
- Added new attributes 'speaker-diarization' to the element 'ws-streaming-recognition'.
¶ 
Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.26.0
Jun 22, 2023
Microsoft Azure Speech Recognition (SR) Plugin 1.26.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The plugin is available for the following UMS versions:
1.7.0
1.8.0
The binaries are currently available for the following Linux distributions:
- Red Hat / CentOS 7
unimrcp-azure-sr-1.7.24-1.el7.x86_64.rpm
unimrcp-azure-sr-1.8.4-1.el7.x86_64.rpm- Red Hat / CentOS 8
unimrcp-azure-sr-1.7.24-1.el8.x86_64.rpm
unimrcp-azure-sr-1.8.4-1.el8.x86_64.rpm- Ubuntu 18.04 LTS
unimrcp-azure-sr_1.7.24-bionic_amd64.deb
unimrcp-azure-sr_1.8.4-bionic_amd64.deb- Ubuntu 20.04 LTS
unimrcp-azure-sr_1.7.24-focal_amd64.deb
unimrcp-azure-sr_1.8.4-focal_amd64.deb- Ubuntu 22.04 LTS
unimrcp-azure-sr_1.7.24-jammy_amd64.deb
unimrcp-azure-sr_1.8.4-jammy_amd64.deb
¶ Summary
This release adds support for a language change in subsequent RECOGNIZE requests placed in the scope of the same MRCP session.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Create and use a new WS connection if the language or service URI differs in subsequent RECOGNIZE requests placed in the scope of the same MRCP session.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.25.1
Apr 12, 2023
Microsoft Azure Speech Recognition (SR) Plugin 1.25.1 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The plugin is available for the following UMS versions:
1.7.0
1.8.0
The binaries are currently available for the following Linux distributions:
- Red Hat / CentOS 7
unimrcp-azure-sr-1.7.23-1.el7.x86_64.rpm
unimrcp-azure-sr-1.8.3-1.el7.x86_64.rpm- Red Hat / CentOS 8
unimrcp-azure-sr-1.7.23-1.el8.x86_64.rpm
unimrcp-azure-sr-1.8.3-1.el8.x86_64.rpm- Ubuntu 18.04 LTS
unimrcp-azure-sr_1.7.23-bionic_amd64.deb
unimrcp-azure-sr_1.8.3-bionic_amd64.deb- Ubuntu 20.04 LTS
unimrcp-azure-sr_1.7.23-focal_amd64.deb
unimrcp-azure-sr_1.8.3-focal_amd64.deb
¶ Summary
This is a patch release fixing two minor issues.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Do not set the header field Ocp-Apim-Subscription-Key in the outgoing request when the subscription key is not specified (on-prem containers). This is a regression introduced since Azure SR 1.19.0 with the support of private endpoints causing no functional differences in most of the cases.
- Consistently set the header field Input-Type to 'speech' and/or 'dtmf' in the START-OF-INPUT events.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.25.0
Dec 30, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.25.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The plugin is available for the following UMS versions:
1.7.0
1.8.0
The binaries are currently available for the following Linux distributions:
- Red Hat / CentOS 7
unimrcp-azure-sr-1.7.22-1.el7.x86_64.rpm
unimrcp-azure-sr-1.8.2-1.el7.x86_64.rpm- Red Hat / CentOS 8
unimrcp-azure-sr-1.7.22-1.el8.x86_64.rpm
unimrcp-azure-sr-1.8.2-1.el8.x86_64.rpm- Ubuntu 18.04 LTS
unimrcp-azure-sr_1.7.22-bionic_amd64.deb
unimrcp-azure-sr_1.8.2-bionic_amd64.deb- Ubuntu 20.04 LTS
unimrcp-azure-sr_1.7.22-focal_amd64.deb
unimrcp-azure-sr_1.8.2-focal_amd64.deb
¶ Summary
The licensing toolkit has been extended to support flexible license distribution allowing for a more efficient use of licenses. The change applies to the use of floating licenses via a license server only. There are no functional changes in the use of node-bound licenses.
The licenses stored on a shared license store are dynamically re-distributed at runtime based on the actual usage. There is no need to pre-allocate a fixed number of licenses on initial loading of UniMRCP Server instances.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for flexible license distribution.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.24.5
Dec 21, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.24.5 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The plugin is available for the following UMS versions:
1.7.0
1.8.0
The binaries are currently available for the following Linux distributions:
- Red Hat / CentOS 7
unimrcp-azure-sr-1.7.21-1.el7.x86_64.rpm
unimrcp-azure-sr-1.8.1-1.el7.x86_64.rpm- Red Hat / CentOS 8
unimrcp-azure-sr-1.7.21-1.el8.x86_64.rpm
unimrcp-azure-sr-1.8.1-1.el8.x86_64.rpm- Ubuntu 18.04 LTS
unimrcp-azure-sr_1.7.21-bionic_amd64.deb
unimrcp-azure-sr_1.8.1-bionic_amd64.deb- Ubuntu 20.04 LTS
unimrcp-azure-sr_1.7.20-focal_amd64.deb
unimrcp-azure-sr_1.8.1-focal_amd64.deb
¶ Summary
This is a patch release which fixes a possible segfault when the service endpoint closes WebSocket connection without sending a turn.end event.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Clear end-of-turn timer when the service endpoint closes WebSocket connection without sending a turn.end event.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.24.3
Oct 18, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.24.3 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.20-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.20-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.20-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.20-focal_amd64.deb)
¶ Summary
This is a patch release which fixes two problems.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Validate HTTP proxy URI, if used, on initial loading of the application not to cause a segfault if the host name is malformed.
- When graceful-ws-close is enabled, close the connection after expiration of timeout, if no response is received from the service endpoint to WS close message. This problem could cause a segfault. Applicable to >= 1.23.0.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.24.2
Sep 13, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.24.2 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.19-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.19-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.19-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.19-focal_amd64.deb)
¶ Summary
This is a patch release which fixes two problems.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Fixed support for private speech service endpoints. This is a regression introduced in the 1.24.0 release.
- Do not initiate graceful closure of WS connection, if the connection has already been closed by the service endpoint. This issue could cause license depletion when graceful-ws-close is enabled. Applicable to >= 1.23.0.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.24.1
Sep 1, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.24.1 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.18-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.18-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.18-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.18-focal_amd64.deb)
¶ Summary
This is a patch release which fixes a regression introduced in the previous 1.24.0 release.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Make sure service-uri is properly composed on subsequent recognition requests placed in the scope of a single MRCP session to be able to re-connect to the service endpoint if/when the original connection is closed by MS due to a timeout or an error. This issue was introduced in the latest release.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.24.0
Aug 8, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.24.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.17-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.17-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.17-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.17-focal_amd64.deb)
¶ Summary
This release introduces support for multiple subscription key files specified per MRCP session. The release also supports additional vendor-specific parameters.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for multiple subscription key files.
- Added support for new vendor-specific parameters such as 'save-waveform', 'save-resampled-waveform', 'save-rdr'.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.23.0
Jul 11, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.23.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.16-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.16-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.16-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.16-focal_amd64.deb)
¶ Summary
This release introduces minor improvements in the WebSocket connection handling.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Set the X-ConnectionId header field on a WebSocket connection to a unique 32-char-length GUID instead of using the MRCP session identifier.
- Added support for graceful closure of a WebSocket connection. This behavior is disabled by default and can be enabled from configuration.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- Added a new attribute 'graceful-ws-close' to the element 'ws-streaming-recognition'.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.22.1
Jun 3, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.22.1 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.15-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.15-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.15-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.15-focal_amd64.deb)
¶ Summary
This release fixes a possible segfault.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Fixed a possible segfault occurred when two file entries (waveforms and/or RDRs) have the same creation time captured in msec, which is a very rare occasion not involved in the regular operation. This is a regression introduced in 1.21.0.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- None.
¶ Azure SR Plugin 1.22.0
Apr 15, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.22.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.14-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.14-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.14-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.14-focal_amd64.deb)
¶ Summary
This release fixes a possible segfault and provides a few improvements.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Allow query parameters of the Azure WebSocket Speech API be transparently specified by the client via vendor-specific parameters. The parameter name must be prefixed with 'azure.stt.' For example:azure.stt.initialSilenceTimeoutMs=1000.
- Added the request id set in the WebSocket messages to the RDRs.
¶ Fixed Problems
- Fixed a possible segfault, which could be encountered when a response to the access token revalidation request arrives late, after a pending RECOGNIZE request is stopped and the associated MRCP session is closed.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.21.0
Mar 28, 2022
Microsoft Azure Speech Recognition (SR) Plugin 1.21.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.13-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.13-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.13-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.13-focal_amd64.deb)
¶ Summary
This release provides a few improvements and fixes.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- If/when the Websocket connection is unexpectedly closed by the service while a RECOGNIZE request is in-progress, allow to implicitly reconnect to the service (auto-reconnect), optionally restream the last audio data chunks (max-audio-data-chunks) and continue processing of the in-progress request.
- Allow to set maximum duration on a Websocket connection.
- Added support for sorting result alternatives based on confidence score (the highest first).
- Made separator of built-in grammar parameters configurable.
- Set the SSL security level to 1 by default. This setting applies to the use of the license server on Ubuntu 20.04 and does not affect other supported distributions.
¶ Fixed Problems
- Fixed a possible memory leak occurred when two file entries (waveforms and/or RDRs) have the same creation time, which is a very rare occasion not involved in the regular operation.
¶ Configuration Parameters
- Added new attributes 'auto-reconnect' and 'max-audio-data-chunks' to the element 'ws-streaming-recognition'.
- Added a new attribute 'max-connection-duration' to the element 'ws-streaming-recognition'.
- Added a new attribute 'sort-alternatives' to the element 'ws-streaming-recognition'.
- Added a new attribute 'grammar-param-separator' to the element 'ws-streaming-recognition'.
- Added a new attribute 'security-level' to the element 'license-server'.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.20.0
Nov 1, 2021
Microsoft Azure Speech Recognition (SR) Plugin 1.20.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.12-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.12-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.12-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.12-focal_amd64.deb)
¶ Summary
This release introduces support for load balancing and failover of service endpoints which can optionally be specified in the configuration file of the plugin.
The release also adds support for triggering a webhook upon completion of speech transcription. The new feature allows for integration with 3-rd party natural language processing, sentiment analysis and other speech-related APIs.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for load balancing and failover of service endpoints specified in the configuration file of the plugin.
- Added support for triggering a webhook upon completion of the speech transcription. The content received back as a result of the webhook invocation is set in the instance element of the NLSML result in the RECOGNITION-COMPLETE event.
- Allow to specify a Websocket connect timeout.
- Output license and maintenance expiration dates to status files, if/when applicable.
¶ Fixed Problems
- Fixed a possible segfault on processing of the header field Logging-Tag having an empty [no] value.
¶ Configuration Parameters
- Added a new element 'service-endpoints' to the document 'umsazuresr'.
- Added a new element 'webhook' to the document 'umsazuresr'.
- Added a new attribute 'connect-timeout' to the element 'ws-streaming-recognition'. The timeout is specified in msec and defaults to 0 (disabled).
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.19.0
Sep 1, 2021
Microsoft Azure Speech Recognition (SR) Plugin 1.19.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
Speech Service (private)
Custom Speech Service (private)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.11-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.11-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.11-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.11-focal_amd64.deb)
¶ Summary
This release adds support for the Azure private service endpoints. The release also fixes processing of the dictation mode employed with on-prem containers.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for the Azure private service endpoints.
¶ Fixed Problems
- Fixed processing of the dictation mode employed with on-prem containers to support speech.fragment responses used instead of speech.hypothesis in this case.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Updated the Installation Guides to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.18.0
Jun 8, 2021
Microsoft Azure Speech Recognition (SR) Plugin 1.18.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.10-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.10-1.el8.x86_64.rpm)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.10-bionic_amd64.deb)
Ubuntu 20.04 LTS (unimrcp-azure-sr_1.7.10-focal_amd64.deb)
¶ Summary
This release adds support for new minor features.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for an extended tag format, which can be set via a new configuration parameter 'tag-format'. If the parameter is set to 'extended', the value of the X-RequestId header is concatenated to the transcription result set in the NLSML instance element.
- Added support for an extended input format which can be set via a new configuration parameter 'input-format'. If the parameter is set to 'extended', the value of the X-RequestId header is concatenated to the transcription result set in the NLSML input element.
- Made the HTTP request timeout configurable for auth requests.
- Made the precision of the confidence score configurable.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- Added a new attribute 'tag-format' to the element 'ws-streaming-recognition'. Can be set either to 'default' or 'extended'.
- Added a new attribute 'input-format' to the element 'ws-streaming-recognition'. Can be set either to 'default' or 'extended'.
- Added a new attribute 'auth-request-timeout' to the element 'ws-streaming-recognition'. Defaults to 30 seconds.
- Added a new attribute 'confidence-precision' to the element 'ws-streaming-recognition'. Defaults to 2 digits after the point.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.17.0
Feb 12, 2021
Microsoft Azure Speech Recognition (SR) Plugin 1.17.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.9-1.el7.x86_64.rpm)
Red Hat / CentOS 8 (unimrcp-azure-sr-1.7.9-1.el8.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.7.9-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.9-bionic_amd64.deb)
¶ Summary
This release provides a few fixes and enhancements to the existing functionality.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- None.
¶ Fixed Problems
- Reworked processing of STOP requests to reliably release all the associated resources and respond to the client regardless of the WS connection and/or request state.
- Reconnect, when the WS connection is unexpectedly closed by the service after RECOGNIZE is received but before streaming is started.
- If an active recognition request is stopped, trailing audio data could remain in the buffer, if the resampler is used, and be processed with the next recognition request placed in the scope of the same MRCP session.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- The statement "Failed to Connect to Service" is now logged only when a connection to the service endpoint cannot be established, but not when connection establishment is cancelled due to processing of a STOP request.
¶ Azure SR Plugin 1.16.0
Nov 30, 2020
Microsoft Azure Speech Recognition (SR) Plugin 1.16.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.6-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.7.6-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.6-bionic_amd64.deb)
¶ Summary
This release provides a few fixes and enhancements to the existing functionality.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Store not only the input (transcript) but also the instance in RDRs.
- Implemented a new speech phrase timer which is set after EOS is sent.
¶ Fixed Problems
- Fixed a regression introduced in the last release in processing of inter-result timeout.
- Fixed a possible memory leak on processing the second and consecutive RECOGNIZE requests in the scope of a single MRCP session.
- Fixed processing of InitialSilenceTimeout in the dictation mode when the input is already completed.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Log not only status code but also status text extracted from received HTTP responses.
¶ Azure SR Plugin 1.15.0
Oct 23, 2020
Microsoft Azure Speech Recognition (SR) Plugin 1.15.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.5-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.7.5-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.5-bionic_amd64.deb)
¶ Summary
This release adds support for dictation mode and also provides a few fixes and enhancements.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for dictation mode (continuous speech transcription) in addition to interactive mode (single utterance).
- When a STOP request is received, close the WS connection straightaway without waiting for normal completion. This change also allows to unconditionally release the associated license.
- If a WS close message is received from the service or the WS connection is closed by the service, a new connection is created on processing of the next RECOGNIZE request.
¶ Fixed Problems
- When the service unexpectedly sends a WS close message with a reason "Instance is shutting down", the next RECOGNIZE request could fail by possibly causing a license depletion.
¶ Configuration Parameters
- Added new attribute 'single-utterance' to the element 'ws-streaming-recognition'.
- Changed default values of 'speech-incomplete-timeout' from 3000 msec to 15000 msec and 'input-timeout' from 10000 msec to 30000 msec.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.14.0
Sep 1, 2020
Microsoft Azure Speech Recognition (SR) Plugin 1.14.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service (regional)
Custom Speech Service (regional)
Speech Service (containerized)
Custom Speech Service (containerized)
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.4-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.7.4-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.4-bionic_amd64.deb)
¶ Summary
This release adds support for Speech Service containers which can be deployed in a strictly controlled environment.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for Speech Service containers.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Updated the Installation Guides to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.13.0
May 4, 2020
Microsoft Azure Speech Recognition (SR) Plugin 1.13.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.7.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service
Bing Speech
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.7.1-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.7.1-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.7.1-bionic_amd64.deb)
¶ Summary
This release addresses a production issue and allows to customize the way input and instance elements are populated.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Allow to customize the way input and instance elements are populated from JSON results received from the service. The behavior is configurable via new parameters 'input-token' and 'instance-token'.
- The results format can now be specified per recognition request via the parameter 'results-format', which can be set either to 'standard' or 'json'.
¶ Fixed Problems
- The use of inter-result timeout, which is disabled by default, could cause a segfault under certain circumstances, when the timer is not properly stopped after the recognition completes. This issue was introduced in 1.12.0.
¶ Configuration Parameters
- Added new attributes 'input-token' and 'instance-token' to the element 'ws-streaming-recognition'. The attributes accept one of the following values 'Lexical', 'ITN', 'MaskedITN', 'Display'.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.12.0
Feb 17, 2020
Microsoft Azure Speech Recognition (SR) Plugin 1.12.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service
Bing Speech
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.6.6-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.6.6-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.6.6-bionic_amd64.deb)
¶ Summary
This release addresses a few production issues and introduces supplementary features and enhancements to the existing functionality.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for inter-result timeout. If the specified timeout is elapsed, input is considered complete. The timeout defaults to 0 (disabled) and can be overridden per recognition request.
- If the configuration parameter 'use-logging-tag' is set to 'true', the header field Logging-Tag, if specified, is used as a suffix while composing file names of utterances and RDRs.
¶ Fixed Problems
- Fixed a race condition in asynchronous processing of initiation of a new turn and termination of the current turn, occurred when audio data for the new turn becomes available earlier than 'turn.end' event is received for the turn being terminated.
- Fixed a race condition, occurred when speech completes earlier than a WebSocket connection to the service is fully established.
¶ Configuration Parameters
- Added a new attribute 'inter-result-timeout' to the element 'ws-streaming-recognition'.
- Added a new attribute 'use-logging-tag' to the elements 'utterance-manager' and 'rdr-manager'.
¶ Miscellaneous
- Changed the log level of statement "Unknown Parameter" from WARNING to DEBUG.
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.11.0
Nov 5, 2019
Microsoft Azure Speech Recognition (SR) Plugin 1.11.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service
Bing Speech
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.6.5-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.6.5-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.6.5-bionic_amd64.deb)
¶ Summary
This release adds support for HTTP proxy in communication with license servers available as a service. The release also improves log statements and addresses a few production issues.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for HTTP proxy in communication with license servers available as a service.
¶ Fixed Problems
- Do not send any outstanding audio data, including final message, if recognition is already completed.
- Keep tracking of received messages from the service in order to determine a missing speech.phrase message and complete recognition with an error. The problem with missing speech phrase has been resolved by Microsoft in the meantime.
¶ Configuration Parameters
- Added new attributes 'http-proxy-address' and 'http-proxy-port' to the element 'license-server'.
¶ Miscellaneous
- Added a new log statement "Received WS Close" containing status code and reason of closure of the WebSocket close frame.
- Added connection identifier to statements logged on each message received.
- Changed the log level of statement "WS disconnected" from INFO to WARNING.
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Azure SR Plugin 1.10.0
Aug 30, 2019
Microsoft Azure Speech Recognition (SR) Plugin 1.10.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Speech Service
Bing Speech
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-azure-sr-1.6.4-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-azure-sr_1.6.4-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-azure-sr_1.6.4-bionic_amd64.deb)
¶ Summary
This is a release of Microsoft Azure SR plugin, the successor of Microsoft Bing SR plugin. The main purpose of this change is not to use the name Bing, which is associated with the speech service being decommissioned by Microsoft in October, 2019. The Azure plugin derives all the version and revision numbers from the outdated Bing plugin. While there are no functional changes introduced in this release, all the related artifacts, including the plugin name, configuration and status file names, documentation and webpages, have been renamed or replaced to reflect the change.
To facilitate migration of existing UniMRCP server installations from using Bing to Azure plugins, helper shell scripts are provided for Red Hat and Debian-based distributions in the following archive file.
upgrade_from_bing_to_azure.tar.gz
¶ Bing SR Plugin 1.9.0
Jul 12, 2019
Microsoft Bing Speech Recognition (BingSR) Plugin 1.9.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Bing Speech
Speech Service
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-bing-sr-1.6.3-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-bing-sr_1.6.3-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-bing-sr_1.6.3-bionic_amd64.deb)
¶ Summary
This release adds support for custom service endpoints. The release also adds support for vendor-specific parameters.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for custom service endpoints. See Section 5.2 in the Installation Guide.
- Added support for certain vendor-specific parameters, including 'speech-start-timeout'. See section 4.7 in the Usage Guide.
- Added support for the content type 'text/grammar-ref-list'.
¶ Fixed Problems
- Compose the header field Waveform-URI based on the protocol version. Before, the format defined in MRCPv2 was used unconditionally.
- Fixed output format of an RDR to strictly conform to JSON.
¶ Configuration Parameters
- None.
¶ Miscellaneous
- Updated the Installation Guides to reflect the changes introduced in this release.
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Bing SR Plugin 1.8.0
Apr 19, 2019
Microsoft Bing Speech Recognition (BingSR) Plugin 1.8.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.9
Rapidjson 1.1.0
The plugin supports the following endpoints:
Bing Speech
Speech Service
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-bing-sr-1.6.2-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-bing-sr_1.6.2-xenial_amd64.deb)
Ubuntu 18.04 LTS (unimrcp-bing-sr_1.6.2-bionic_amd64.deb)
¶ Summary
This release adds support for HTTP proxy, introduces binaries for Ubuntu 18.04 LTS and fixes a few problems.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for an optional language parameter passed to a built-in grammar. Fixed interoperability with Aspect Prophecy. See the Section 4.2 in the Usage Guide.
- Added support for HTTP proxy.
- Set an alarm in the status file if the license server is not reachable for a certain period of time, but the service is not yet affected. Clear the alarm as soon as the license server becomes available. See Section 6.2 in the Usage Guide.
¶ Fixed Problems
- Fixed processing of malformed parameters passed to a built-in grammar.
- If an annual node-bound license is used, the expiration time of the license could be provisioned incorrectly, requiring a restart of the service in order to continue normal operation.
- Make sure START-OF-INPUT is sent before sending RECOGNITION-COMPLETE with a completion cause set to 'no-match' or 'success'. Fixed interoperability with Cisco Broadworks media server.
- When license server is in use, fixed processing of a connection hang-up event occurred when a license refresh request is being sent to the license server. This event could result in a few seconds-long outage of the service.
¶ Configuration Parameters
- Added a new attribute 'http-proxy' to the element 'ws-streaming-recognition'.
- Changed the default value of the attribute 'speech-start-timeout' from 300 ms to 50 ms.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
- Patched the Libevent library to properly support communication via HTTP proxy. The resulted package is based on 2.1.8 and released as 2.1.9.
¶ Bing SR Plugin 1.7.0
Jan 29, 2019
Microsoft Bing Speech Recognition (BingSR) Plugin 1.7.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.6.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The plugin supports the following endpoints:
Bing Speech
Speech Service
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7 (unimrcp-bing-sr-1.6.1-1.el7.x86_64.rpm)
Ubuntu 16.04 LTS (unimrcp-bing-sr_1.6.1-xenial_amd64.deb)
¶ Summary
This release provides numerous SRGS-related enhancements, primarily intended to address interoperability issues with VoiceXML platforms having a limited ability of referencing built-in grammars. The release also fixes a possible license depletion issue.
Everyone is encouraged to upgrade.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for predefined metadata in SRGS XML grammars that allows to reference a built-in grammar and/or specify various input parameters. See Sections 4.2, 5.1, 5.2 in the Usage Guide.
- In accordance with SRGS recommendation, use case-insensitive string matching, while comparing a transcription result with phrases in a supplied speech context.
- Use the exact letter case specified in a supplied speech context, while composing the instance element in NLSML results.
- Added a new attribute 'scope' to individual speech contexts, which can be defined in configuration globally.
¶ Fixed Problems
- Fixed a possible license depletion issue. Under unknown circumstances experienced with the new regional-based service endpoint, the 'turn.end' event is NOT received from the service. Such an occurrence eventually caused the channel to infinitely wait for the event. The new implementation sets a timer for the 'turn.end' event in order to properly release all the resources, if the event is not received in a timely manner.
¶ Configuration Parameters
- Added a new attribute 'scope' to individual speech contexts.
¶ Miscellaneous
- Fixed HTTP response time output in logs not to be truncated to msec but to be represented in msec.
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Bing SR Plugin 1.6.0
Oct 25, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.6.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The plugin supports the following endpoints:
Bing Speech
Speech Service
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
This release adds support for new regional Speech Service endpoints by retaining the support for the non-regional Bing Speech endpoint. The release also fixes a few minor issues and allows for new alternate ways of specifying recognition language and referencing speech context.
Everyone is encouraged to upgrade and start gradually migrating to the new Speech Service endpoints. While nothing has to be changed in the configuration or subscription data, check out the new data format described in Section 5 of the corresponding Installation Guide.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for new regional Speech Service endpoints. See Section 5 in the Installation Guide.
- Implemented an alternate way of referencing built-in grammars via 'special' ruleref in SRGS XML grammars. See Section 5.1 in the Usage Guide.
- Added support for 'xml:lang' attribute optionally specified in SRGS XML grammars. This method has the highest precedence in selection of recognition language. The language can be otherwise specified either by the global configuration parameter or the header field 'Speech-Language'. See Section 4.2 in the Usage Guide.
- Added a new attribute 'language' to individual speech contexts, which allows to define speech contexts for various languages regardless of the global configuration parameter.
¶ Fixed Problems
- Speech input is considered complete only when an interim result uniquely matches one of the phrases in the used speech context.
- All the internal common class names are declared under a unique namespace not to cause a conflict with other speech recognition plugins being loaded in to the same instance of UniMRCP server.
- In case of DTMF input, allow both 'maxlength' and 'term char' be specified at the same time. Before, 'malxength' was not observed, if 'term char' was specified.
¶ Configuration Parameters
- Added a new attribute 'language' to individual speech contexts.
¶ Miscellaneous
- Fixed the digit format output in a log statement 'Detected Start of Event'.
- Updated the Installation Guides to reflect the changes introduced in this release.
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Bing SR Plugin 1.5.0
Aug 10, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.5.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
Added support for speech contexts being optionally used as a basic grammar. If the new attribute 'speech-complete' is set to true, then input will complete as soon as an interim result matches one of the phrases specified in the speech context. Each phrase may also be assigned an arbitrary tag to be set as an instance in the returned NLSML results.
Initiate a new turn, if the current one completes with 'InitialSilenceTimeout' or 'BabbleTimeout'. This behavior addresses the issue, when audio data streamed to the service contains noise and no user utterance. In such a case, upon completion of a false turn, the recognition will continue by initiating a new turn.
This release also allows to specify the format of the confidence score returned in the NLSML results via a new configuration parameter 'confidence-format'. By default, the configuration parameter is set to 'auto', which means the format is implicitly determined based on the version of the protocol being used. In order to use the floating point format in the range of 0..1 consistently, the parameter must be set to 'mrcpv2'; and for the integer format in the range of 0.100 - 'mrcpv1'.
There is also a new configuration parameter 'alternatives-below-threshold', which allows to control whether or not to include alternatives with a confidence score below the specified threshold in the returned NLSML results.
Everyone is encouraged to upgrade.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for speech contexts being optionally used as a basic grammar.
- Initiate a new turn, if the current one completes with 'InitialSilenceTimeout' or 'BabbleTimeout'.
- Allow to specify the format of the confidence score returned in the NLSML results based on a new configuration parameter.
- Allow to control whether or not to include alternatives with a confidence score below the specified threshold in the returned NLSML results.
- Keep track of the maximum number of channels used concurrently. This number is logged by default within the statement 'BingSR Usage' and can also be written in the status file, if enabled.
¶ Fixed Problems
- Fixed an issues in the SDI detector, encountered when 'speech-incomplete-timeout' is significantly longer than 'speech-complete-timeout'.
- Fixed processing of the header field 'Recognition-Timeout' to set the SDI 'speech-input-timeout' accordingly. Only the global configuration parameter was in effect before.
¶ Configuration Parameters
- Added a new element 'speech-contexts'.
- Added a new attribute 'confidence-format' to the element 'streaming-recognition', which defaults to 'auto' and also accepts 'mrcpv2' and 'mrcpv1'.
- Added a new boolean attribute 'alternatives-below-threshold' to the element 'streaming-recognition', which defaults to 'false'.
¶ Miscellaneous
- Updated the Usage Guide to reflect the changes introduced in this release.
¶ Bing SR Plugin 1.4.0
Jul 25, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.4.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
This release addresses interoperability with Cisco Unified Customer Voice Portal (CVP).
The release also fixes an issue stopping no-input timer encountered under certain circumstances.
Everyone is encouraged to upgrade.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Made the name of the built-in speech transcription grammar configurable, which defaults to 'transcribe'.
- Allow 'builtin:speech/name' to be used interchangeably.
- Accept SRGS speech grammars without processing of any rules defined in the grammar.
¶ Fixed Problems
- When the configuration parameter 'start-of-input' is set to 'service-originated', then no-input timer might have not been stopped upon start of speech. This issue was introduced in 1.3.0 release.
¶ Configuration Parameters
- Added a new attribute 'skip-unsupported-grammars', which defaults to 'true'.
- Added a new attribute 'transcription-grammar', which defaults to 'transcribe'.
¶ Miscellaneous
- Changed grammar referencing routine to be, by default, tolerant to malformed and not supported grammars.
¶ Bing SR Plugin 1.3.0
Jun 18, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.3.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
This release adds support for resampling, which allows to transform audio data in incoming RTP stream from 8 kHz to 16 kHz.
Also, when both the speech and DTMF detectors are activated, the DTMF detector remains active until a first interim result of speech transcription becomes available. In order to enable this behavior, the configuration parameter 'start-of-input' must be set to 'service-originated'.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for resampling from 8 kHz to 16 kHz.
¶ Fixed Problems
- None.
¶ Configuration Parameters
- Changed the default value of the attribute 'speech-incomplete-timeout' from 1000 to 3000.
¶ Miscellaneous
- Improved the speech and DTMF input detector.
- Updated the Usage Guide accordingly.
¶ Bing SR Plugin 1.2.0
May 23, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.2.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
This release fixes a specific problem in communication with the license server.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ Fixed Problems
- When a license refresh request, sent to the license server, timed out due to a sporadic network problem, the plugin would have permanently remained out of service until next restart of the UniMRCP server. Now, the behavior has been fixed to reattempt the connection to the license server in such an event, without causing any interruption in service.
¶ Miscellaneous
- The plugin configuration will no longer be overwritten while upgrading the .deb package. The RPM package was not affected.
¶ Bing SR Plugin 1.1.0
Apr 9, 2018
Microsoft Bing Speech Recognition (BingSR) Plugin 1.1.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
This release adds support for Speech-Incomplete-Timeout and also provides a few minor improvements.
¶ Changes
The detailed list of changes introduced in this release follows.
¶ New Features
- Added support for the MRCP header field Speech-Incomplete-Timeout.
¶ Fixed Problems
- Skip any leading or trailing whitespaces while reading subscription key from file.
- If connection to service is failed to establish and input has already started, do not attempt to send any data to the service.
¶ Configuration Parameters
- Added a new attribute 'speech-incomplete-timeout' to the element 'speech-dtmf-input-detector', which is set to 1000 msec by default.
- Changed the default value of the configuration parameter 'vad-mode' from 1 to 2.
¶ Miscellaneous
- Log header fields of received HTTP responses using log level DEBUG instead of INFO.
- Added session identifier to all the statements logged by speech input detector.
¶ Bing SR Plugin 1.0.0
Oct 26, 2017
Microsoft Bing Speech Recognition (BingSR) Plugin 1.0.0 to the UniMRCP Server (UMS) has been released.
The plugin is based on the following components:
UniMRCP Server 1.5.0
Microsoft Speech WebSocket Protocol
Libevent 2.1.8
Rapidjson 1.1.0
The binaries are currently available for the following Linux distributions:
Red Hat / CentOS 7
Ubuntu 16.04 LTS
¶ Summary
The plugin allows IVR platforms to utilize the Microsoft Bing Speech API via MRCP. The connection to the globally accessible service is maintained via WebSockets, which ensures secure, reliable and fast transmission of data over the Internet.
The Bing Speech API provides outstanding recognition quality, having all the major languages supported.