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I am recording audio in wav format using recorder.js https://github.com/mattdiamond/Recorderjs but google's speech API accept only FLAC format of audio. Could anyone guide me either to a FLAC recorder or how to convert the recorded wav file to a FLAC file on client side or server side(linux server).

Vikash
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1 Answers1

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WAV files can simply converted to FLAC via ffmpeg with this command:

ffmpeg -i input.wav output.flac

You can find more documents about ffmpeg in the official site, Also there is a php wrapper for the ffmpeg binary on github.

Alireza Ahmadi
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