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Azure SR Plugin 1.11.0 Released

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)

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.

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'.
  • 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.

Visit the Azure SR plugin page for more information.


Thank you for using UniMRCP.

Arsen Chaloyan
Author of UniMRCP

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