Noise Activity Detection

[abhishek kesharwani]

Hi Arsen,

I am using AWS transcribe , facing issues  while detecting speech. I am using freeswitch and unimrcp with aws transcribe.

Playing a recorded file. umstranscribe config is as below:

 <streaming-recognition
      single-utterance="false"
      interim-results="true"
      start-of-input="service-originated"
      language="en-US"
      max-alternatives="5"
      alternatives-below-threshold="true"
      skip-empty-results="true"
      skip-unsupported-grammars="true"
      transcription-grammar="transcribe"
      grammar-param-separator=";"
      inter-result-timeout="5000"
      region=""
      vocabulary-name=""
   />

 <speech-dtmf-input-detector
      vad-mode="3"
      speech-start-timeout="50"
      speech-complete-timeout="5000"
      speech-incomplete-timeout="15000"
      noinput-timeout="2000"
      input-timeout="3000"
      dtmf-interdigit-timeout="5000"
      dtmf-term-timeout="10000"
      dtmf-term-char=""
      speech-leading-silence="300"
      speech-trailing-silence="200"
      speech-output-period="300"
   />

Problem : while tested and keep muted the mic , file playing order is fine, if don't mute the mic , plugin detected surrounding noise like (fan voice or something but no one is speaking ), i tried various combination but didn't work ..and all audio getting mesh up.

please guide how to resolve the above issue , so that ai bot only detect speech no surrounding voice.

Thanks & Regards

Abhishek Kumar Kesharwani

Contact: +91 9560305196

Whatsapp: +91 9560305196

Email: abhi...@gmail.com

Skype: abhishekkumar2012

[Arsen Chaloyan]

Hi Abhishek,

I'd suggest increasing the no-input and input timeouts. Otherwise, the parameters seem good. Since the client can override the specified timeouts per request, the logs would be required to identify the problem. It would be better if you or anyone else experiencing a similar problem could also collect and supply the corresponding utterance(s) stored in the /opt/unimrcp/var directory.

   <utterance-manager
      save-waveforms="true"
      purge-existing="false"

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