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Azure SR Plugin 1.13.0 Released

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)

This release addresses a production issue and allows to customize the way input and instance elements are populated.

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'.
  • Updated the Usage Guide to reflect the changes introduced in this release.

Visit the Azure SR plugin page for more information.


Thank you for using UniMRCP.

Arsen Chaloyan
Author of UniMRCP

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