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I downloaded the 3GPP AMR-WB codec (26.173) from http://www.3gpp.org/DynaReport/26173.htm and successfully compiled it. However, the file format generated from the decoder is some so-called binary synthesized speech file (*.out). I am wondering what is the exact format and how I can play the the file? Thanks

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Grassright
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1 Answers1

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For AMR-WB, output will be raw PCM with following properties

  • 16000 (16Khz) sampling frequency
  • 1 (mono) channel
  • 16 bits per channel

You can play it using Audacity or any other player which supports PCM input.

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