Log inRegister


This is the easiest software to concatenate and/or split audio files.



Wordt standaard geïsntalleerd in C:\Program Files (x86)\sox-14-4-2>

Manuals & resources


Focusing on split on silence

Concatenate in real life

It works with .wav, .mp3, …

Het laatste bestand is altijd het doelbestand, de voorgaande de bronbestanden:

sox first.mp3 second.mp3 third.mp3 result.mp3

see: https://stackoverflow.com/questions/25280958/sox-concatenate-multiple-audio-files-without-a-gap-in-between

C:\Program Files (x86)\sox-14-4-2>sox 1.wav 2.wav 3.wav 123.wav

Simple split in real life

De output-bestanden krijgen vanzelf een volgnummer mee:

sox infile.wav output.wav trim 0 30 : newfile : restart

Zo bijvoorbeeld:
sox 15.wav output.wav trim 0 75 : newfile : restart
sox WARN trim: Last 1 position(s) not reached (audio shorter than expected).

Je krijgt dus netjes een melding dat de laatste in de rij korter zal zijn.

Get the last part of an audio file, skipping x seconds

skip e.g. 70 seconds

sox 10.wav out.wav trim 70

Split manually in unequal sections

The following is an example of splitting (the first x seconds of) an input file into a 42.65 second file a 43.1 second file, a 73 second file and ignoring the rest. (http://sox.sourceforge.net/sox.html)

sox BuxIn034.wav BuxOut%1n.wav trim 0 42.65 : newfile : trim 0 43.1 : newfile : trim 0 73

Split where silence

See another example splitwavxx.bat.

I had a large .wav file from a concert, that I wanted to split into the separate pieces, based on the silence between the pieces. I knew there were 43 pieces, an intro and an applause at the end, so in total I needed 45 files:

sox -V3 BuxIn.wav BuxOut.wav silence 1 3.0 0.1% 1 0.3 1% : newfile : restart

→ 100 files

  • The first triplet of values means remove silence, if any, at the start until 3.0 seconds of sound above 0.1%.
  • The second triplet means stop when there is at least 0.3 seconds of silence below 1%. changed into: 0.3 seconds of silence below 0.3%
sox -V3 BuxIn.wav BuxOut.wav silence 1 3.0 0.1% 1 0.3 0.3% : newfile : restart

→ 33 files => changed into: 0.3 seconds of silence below 0.38%

sox -V3 BuxIn.wav BuxOut.wav silence 1 3.0 0.1% 1 0.3 0.38% : newfile : restart

→ 46 files => OK

Other trials, from commands I found on the www:

sox BuxIn.wav BuxOut.wav silence 1 0.5 1% 1 5.0 1% : newfile : restart

→ 10 files

sox BuxIn.wav BuxOut.wav silence -l 1 0.0 -40d 1 1.0 -40d : newfile : restart

→ 125 files

No SoX

Sometimes, I also use NCH Slice Audio File Splitter (https://www.nch.com.au/splitter/index.html).
This site is powered by FoswikiCopyright © by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding Foswiki? Send feedback
This page was cached on 09 Nov 2022 - 06:15.