How do I chunk audio from a stream for downstream processing?

[shashi-netra]

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Overview

I need to run a speech recognition engine on an audio stream, but it needs to happen in (near) real-time. My idea was to use Pyav to save audio for say 10 audio frames and then run the speech recognition. Is there a recommended way to chunk an incoming audio stream?

Expected behavior

#file container for output:

out_container = av.open('test.wav','w')
out_stream = out_container.add_stream(template=audio_stream)
for i,packet in enumerate(container.demux(audio_stream)):
    print float(packet.pts*packet.stream.time_base)
    out_container.mux(packet)
    if i %10:
       #run speech recognition module here every 10th audio frame
     speech_recog()

Actual behavior

Is this the recommended approach to chunk audio from a stream?

Research

I have done the following:

• Checked the PyAV documentation
• [x ] Searched on Google
• [x ] Searched on Stack Overflow
• Looked through old GitHub issues
• Asked on PyAV Gitter
• ... and waited 72 hours for a response.

Additional context

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