AWS Lex Plugin 2.9.0 Released

[Arsen Chaloyan]

Amazon Web Services (AWS) Lex Plugin 2.9.0 to the UniMRCP Server (UMS) has been released.

The plugin is based on the following components:

• UniMRCP Server 1.7.0
• AWS SDK 1.11.469
• AWS Lex V2
• Libevent 2.1.9
• Libnghttp2 1.42.0

The plugin is available for the following UMS versions:

• 1.7.0
• 1.8.0

The binaries are currently available for the following Linux distributions:

• Red Hat 8
  • unimrcp-lex-1.7.15-1.el8.x86_64.rpm
  • unimrcp-lex-1.8.4-1.el8.x86_64.rpm
• Red Hat 9
  • unimrcp-lex-1.7.15-1.el9.x86_64.rpm
  • unimrcp-lex-1.8.4-1.el9.x86_64.rpm
• Ubuntu 20.04 LTS
  • unimrcp-lex_1.7.15-focal_amd64.deb
  • unimrcp-lex_1.8.4-focal_amd64.deb
• Ubuntu 22.04 LTS
  • unimrcp-lex_1.7.15-jammy_amd64.deb
  • unimrcp-lex_1.8.4-jammy_amd64.deb

This release allows to use a custom service endpoint. The release also provides a few enhancements and fixes.

The detailed list of changes introduced in this release follows.

New Features

• Make sure to have a unique Lex session id for each turn initiated in the scope of the same MRCP session.
• Send blank audio data to Lex while there is no activity detected.
• Allow to override service endpoint.

Fixed Problems

• Fixed a race condition in expiration of no-input timeout and reception of results from Lex which could possibly cause a segfault.

Configuration Parameters

• Added a new attribute 'blank-audio-period' to the element 'streaming-recognition'.
• Added a new attribute 'service-uri' to the element 'streaming-recognition'.

Miscellaneous

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

Visit the Lex plugin page for more information.

• https://unispeech.io/lex
  
• https://www.unimrcp.org/lex
  

Thank you for using UniMRCP.

--

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