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Google SR Plugin 1.17.0 Released

Google Speech Recognition (GSR) 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
  • Google Speech-to-Text API v1
  • gRPC 1.20.0
  • Protobuf 3.7.0

The binaries are currently available for the following Linux distributions:

  • Red Hat / CentOS 7 (unimrcp-gsr-1.7.1-1.el7.x86_64.rpm)
  • Ubuntu 16.04 LTS (unimrcp-gsr_1.7.1-xenial_amd64.deb)
  • Ubuntu 18.04 LTS (unimrcp-gsr_1.7.1-bionic_amd64.deb)

This release introduces support for multiple Google account credentials. The release is built against an upgraded version of Google APIs.

The detailed list of changes introduced in this release follows.
New Features
  • Added support for multiple Google account credentials, which can be specified either per server profile or per MRCP session via feature tags.
Fixed Problems
  • Fixed processing of phrase hints (data in SRGS XML item element) spanning multiple lines.
Configuration Parameters
  • None.
  • Upgraded Google APIs (unigoogleapis-1.1.0).
  • Class tokens can now be specified as a text of 'item' elements in an SRGS XML grammar or 'phrase' elements in 'speech-context'.
  • Added a sample speech context 'time' to the default configuration which makes use of the class token $TIME. The sample speech context is disabled by default.
  • Speech adaptation boost is NOT supported in this release, since, as of now, this feature is available in Google Speech-to-Text API v1p1beta1 only, but not v1.
  • Updated the Usage Guide to reflect the changes introduced in this release.

Visit the GSR plugin page for more information.


Thank you for using UniMRCP.

Arsen Chaloyan
Author of UniMRCP

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