Guide to split audio recording by silence with SoX and ffmpeg

split_silence.sh

# 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) #######