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Watson SR Plugin 1.1.0 Released


IBM Watson Speech Recognition (SR) 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
  • IBM Watson Speech to Text API v1
  • 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

This release fixes several issues related to processing of received results and stopping no-input timer under certain circumstances. The release also adds support for numerous new configuration parameters.

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/$name' and 'builtin:grammar/$name' to be used interchangeably.
  • Accept SRGS speech grammars without processing of any rules defined in the grammar.
  • If the parameter 'single-utterance' is set to 'true', recognition completes upon reception of the first final result without waiting for the speech [in]complete timeout to elapse.
Fixed Problems
  • Fixed processing of received results to properly observe the 'final' attribute.
  • 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.
Configuration Parameters
  • Added a new attribute 'single-utterance', which defaults to 'false'.
  • Added a new attribute 'skip-unsupported-grammars', which defaults to 'true'.
  • Added a new attribute 'transcription-grammar', which defaults to 'transcribe'.
  • Changed the default value of the attribute 'speech-incomplete-timeout' from 1000 to 3000.
  • Changed the default value of the attribute 'start-of-input' from 'internal' to 'service-originated'.
Miscellaneous
  • Changed grammar referencing routine to be, by default, tolerant to malformed and not supported grammars.

 

Thank you for using UniMRCP.

--
Arsen Chaloyan
Author of UniMRCP
http://www.unimrcp.org

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