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Guide to split audio recording by silence with SoX and ffmpeg
# First denoise audio
## Get noise sample
ffmpeg -i input.ogg -vn -ss 00:00:00 -t 00:00:01 noise-sample.wav
## Create noise profile
sox noise-sample.wav -n noiseprof noise.prof
## Clean audio from noise
sox input.ogg clean.wav noisered noise.prof 0.21
# Split audio by noise
sox -V3 clean.wav output.wav silence 1 0.2 0.4% 1 0.2 0.4% : newfile : restart
####### (these settings worked for my computer mic - maybe we need to finetune them later) #######
@johnpankowicz

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@johnpankowicz johnpankowicz commented Feb 5, 2019

Thank you! I just used this to split an album that had been recorded as a single file. I just needed to increase the silence durations from 0.2 to 0.4.

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