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• google speech to text errors out (grpc invalid deadline NaN)

  15 décembre 2019, par jamescharlesworth

  I have a ffmpeg script that cuts an audio file into a short 5 second clip, however after I cut the file, calling the google speech recognize command errors out.

  Creating a clip - full code link :

  const uri = 'http://traffic.libsyn.com/joeroganexp/p1400.mp3?dest-id=19997';
  
  const command = ffmpeg(got.stream(uri));
  
  command
  
    .seek(0)
  
    .duration(5)
  
    .audioBitrate(128)
  
    .format('mp3')
  
  ...

  which works fine and creates ./clip2.mp3.

  I then take that file and upload it to speech to text api and it times out (script here. When I put timeout and maxRetries argument I can get the actual error :

  Error: 2 UNKNOWN: Getting metadata from plugin failed with error: Deadline is too far in the future
  
      at Object.callErrorFromStatus (/Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/call.js:30:26)
  
      at Http2CallStream.<anonymous> (/Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/client.js:96:33)
  
      at Http2CallStream.emit (events.js:215:7)
  
      at /Users/jamescharlesworth/Downloads/demo/node_modules/@grpc/grpc-js/build/src/call-stream.js:98:22
  
      at processTicksAndRejections (internal/process/task_queues.js:75:11) {
  
    code: 2,
  
    details: 'Getting metadata from plugin failed with error: Deadline is too far in the future',
  
    metadata: Metadata { internalRepr: Map {}, options: {} },
  
    note: 'Exception occurred in retry method that was not classified as transient'
  
  }
  
  </anonymous>

  Stepping through the grpc code i see that the deadline is an invalid date.
  
  This seems to be causing the issue but i assume it may be from incorrect params passed into the speech client.recognize() method.

  A few other things to note :

  • The script works for some audio files, not all
  • I can upload the broken my clip mp3 clip2.mp3 to the demo app here and it works fine.
  • If I change the seek command of my ffmpeg script to start at 0.01 speech recognize command will work (however it breaks other audio clips as its not the correct starting point). I notice that when i do this the png of the mp3 gets stripped out and is a much smaller file size

• finding speed and tone of speech in an audio using python

  1er février 2018, par kRazzy R

  Given an audio , I want to calculate the pace of the speech. i.e how fast or slow is it.

  Currently I am doing the following :
  
   convert speech to text and obtaining a transcript (using a free tool).
  
   count number of words in transcript.
  
   calculate length or duration of file.
  
   finally, pace = (number of words in transcript / duration of file).

  However the accuracy of the pace obtained is dependent purely on transcription , which I think is an unnecessary step.

  Is there any python-library/sox/ffmpeg way that will enable me to

  • to calculate, in a straightforward way,the speed/pace of talk in an audio
  • dominant Pitches/tones of that audio ?

  I referred : I referred : http://sox.sourceforge.net/sox.html and https://digitalcardboard.com/blog/2009/08/25/the-sox-of-silence/

• Is there a file container that can store GSM-EFR speech data ?

  17 décembre 2014, par user3123346

  Is there a file container that can store GSM-EFR speech data ?
  Just now I have such an file that contains a lot of RTP packages, the payload type of RTP package is GSM-EFR. I want to convert this file to a file that store the GSM-EFR data.
  And then I need a audio player to decode the file and play the voice.
  I have try the .amr file format,but encounter that .amr format can not distinguish the full rate and enhance full rate when they are both 12.2kbps.
  I have try the ffmpeg, but this player can not decode GSM-EFR data.
  So I need a file format and a audio player.Is there anyone can help me ?
  Thanks very much !