Release notes 4.5.0
Release date: 7th December 2023
Summary
This page highlights all the changes, new features and bugs addressed within the LumenVox Containers version 4.5.0 release. This change affects Speech products. This version is not available for Voice biometric products, this will be made available in upcoming releases.
Highlights
Resolution of an ASR memory leak
Custom ASR language models can now be accommodated
Enhancements to MRCP
Enhancements to the analysis portal
Mandarin included in ASR language set
*Note: For TTS, we recommend that text not exceed 4mb (this is roughly 1300 Characters with spaces or around 250 words)
**Note: For Transcription, we recommend that users not exceed 90 minutes of transcribed audio due to gRPC size limits.
What’s new on LumenVox Cloud 4.5.0
New Features
Mandarin included in ASR language set
Custom language models can now be supported
Updates
Fix to an ASR memory leak affecting transcription.
Analysis portal updated with the following:
Addition of transcription result analysis window
Allow search capability of analysis sets
Enhancement to RabbitMQ queue cleanups
MRCP
Logs updated to contain gRPC session/interaction references
Flag created to allow for session level archiving
Session GUID added to the CDR logs
Improved TLS support for self-signed certificates when using URL for grammar loading, loading of audio etc
Various smaller improvements
TTS updated to support SSLM with audio references to ULaw & Alaw 8000Hz
Installation notes
The following helm chart can be used
Note that for MRCP there is no helm chart but a docker compose file. MRCP will run on its own Docker virtual machine which will integrate into the Kubernetes cluster.
Upgrade procedures
Upgrade or migration from previous versions is supported. Please contact LumenVox to discuss.
Updated API guide
APIs for all speech products available on version 4.5 can be obtained here:
LumenVox API Documentation
Information for voice biometric products relates to version 3.4.0-3.4.3
Model versions as part of the release
ASR - 4.1.0
TTS - 1.0 sample rate 22
VB - 2.1.15
VB incorporates Selene 2.4.3 which was integrated into the Container stack
Model version changes
None