Comments on: 15 Awesome Examples to Manipulate Audio Files Using Sound eXchange (SoX)

By: tom

tom — Fri, 20 Jan 2012 21:02:15 +0000

How can I get Sox to play from a point? For example, begin playing at two seconds in. I bet I can create a new file with the audio i want and play that, but it seems obtuse

By: ted

ted — Thu, 19 Jan 2012 21:03:06 +0000

fyi- example #4 does not work.
i have SoX installed on Mac OSX.

By: Jim Hoadley

Jim Hoadley — Tue, 26 Apr 2011 22:52:23 +0000

Your instructions for decreasing the volume are incorrect. Positive numbers less the 1 decrease the volume. You can make those numbers negative, but that will just invert the phase; it has no effect on volume. I would suggest you replace your examples with these:

$ sox -v 0.5 srcfile.wav test05.wav
$ sox -v 0.1 srcfile.wav test01.wav

The first command reduces the gain by 50%, the second by 90%.

Feel free to check the sox man page to verify my comments. Thanks!

By: daniel

daniel — Wed, 09 Feb 2011 14:04:08 +0000

wow, nice article…

although i didnt find a reference to the general “problem” of combining 2 audio file, one is voice and the other is background music, in a way that the volume of the music is reduced when the voice is “speaking”…

is it possiable to perform using SoX?

thanks alot

Daniel

By: Rob

Rob — Thu, 06 Jan 2011 22:02:57 +0000

Need some help. I am trying to execute the soxmix command from a php call, but it does nothing… can you show me how to do it?

$output = array();
$result = -1;
exec(‘/usr/bin/soxmix test/exports/audiotest1.wav audio/003-half.wav test/exports/mixedaudio.wav’, $output, $result);
var_dump($output, $result);

By: anon

anon — Sun, 21 Nov 2010 17:40:57 +0000

Thanks for the tutorial, also thanks Marios for the update about ‘avg’…!

By: Marios

Marios — Wed, 29 Sep 2010 16:57:36 +0000

Phil G

avg has been deprecated but has been replaced by mixer.

To get the left channel from stereo try:
sox stereo.wav -c 1 mono.wav mixer -l

for more info look at the mixer notes here:
http://sox.sourceforge.net/sox.html

By: roy7

roy7 — Wed, 18 Aug 2010 16:46:59 +0000

Ian Vaughan, you can do that with Audacity. I think it’s in their FAQ.

By: Gib

Gib — Mon, 17 May 2010 17:21:23 +0000

sox foo.wav -e stat -> Will not work on the latest versions of sox.

Must use -n instead of -e e.g.
sox foo.wav -n stat

By: rakesh

rakesh — Thu, 06 May 2010 12:18:03 +0000

Hello ,

Is SOX support to convert any music file to ringtone extenstion like midi,mmf,aac ,poliphonic ringtone,mono pholic ring tone etc.
please help on that point

Thanks in advanced