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Kaldi SR Plugin 1.4.0 Released

Kaldi Speech Recognition (SR) Plugin 1.4.0 to the UniMRCP Server (UMS) has been released.

The plugin is based on the following components:

  • UniMRCP Server 1.6.0
  • Kaldi GStreamer Server
  • Libevent 2.1.9
  • Rapidjson 1.1.0

The binaries are currently available for the following Linux distributions:

  • Red Hat / CentOS 7 (unimrcp-kaldi-sr-1.6.2-1.el7.x86_64.rpm)
  • Ubuntu 16.04 LTS (unimrcp-kaldi-sr_1.6.2-xenial_amd64.deb)
  • Ubuntu 18.04 LTS (unimrcp-kaldi-sr_1.6.2-bionic_amd64.deb)

This release adds support for HTTP proxy, introduces binaries for Ubuntu 18.04 LTS and fixes a few problems.

The detailed list of changes introduced in this release follows.
New Features
  • Added support for HTTP proxy.
Fixed Problems
  • 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 'kaldi-server'.
  • 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.

Visit the Kaldi SR plugin page for more information.


Thank you for using UniMRCP.

Arsen Chaloyan
Author of UniMRCP

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