SoX recording audio and trimming silence

sox -t alsa default ./recording.flac silence 1 0.1 5% 1 1.0 5%
Records audio from your mic in FLAC (Free Lossless Audio Codec) format, starts only after it detects at least 0.1 seconds of noise and stops after 1 second of silence. You can adjust the percent values (sensitivity) to best fit your microphone and voice (0.1% if you have a great quality mic, higher if you don't, 0% does not trim anything). Useful for speech recognition in conjunction with my previous command titled 'Google voice recognition "API"' (http://www.commandlinefu.com/commands/view/8043/google-voice-recognition-api).

1
By: sairon
2011-03-08 14:36:39

What Others Think

Hello, this works perfectly for actually recording the audio, although the recorded flac does not end up being readable by the Google Voice recognition API. I did have to change "alsa" with "waveaudio". Any ideas would be much appreciated. I tried going through the SOX documentation and trying various things, but nothing worked. Thank you.
aml25 · 342 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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