Having problems with sox syntax.

stf92 · 10-25-2012, 03:53 AM

I have a set of 24-bit WAV files and have been trying to use sox to transform them to 16-bit CDDA (CD digital audio, the format originated by Sony and Philips back in the 1980s). The syntax I used is

Code:

$ sox -b 24 violin_2a.wav violin_2a.cdda    
sox: Can't open input file '24': No such file or directory

Sox believes the option is the file. But according to the man page, it shoudn't. The entire O.S. has just been reinstalled.

Please do not tell me to use another program coz I want to use sox and, what's more important, learn how to properly use it.

sox 12.18.1
slackware 12.0
kernel 2.6.21.5

H_TeXMeX_H · 10-25-2012, 07:43 AM

Just run:

Code:

sox violin_2a.wav violin_2a.cdda

The wav has a header, and so you don't need to specify any options.

stf92 · 10-25-2012, 07:47 AM

You're right, but then it says "I can't understand the wav size". But aplay plays it OK.

H_TeXMeX_H · 10-25-2012, 08:40 AM

Check the output of file:

Code:

bash-4.2$ file test.wav 
test.wav: RIFF (little-endian) data, WAVE audio, Microsoft PCM, 24 bit, stereo 44100 Hz

You can convert it more explicitly like:

Code:

sox -c 2 -e signed-integer -b 24 --endian little -r 44100 test.wav -c 2 -e signed-integer -b 16 --endian little -r 44100 test.cdda

highpass · 10-25-2012, 09:07 AM

From the changelog:

sox-13.0.0 2007-02-11
o Add support for 24-bit PCM raw, wav WAVE_FORMAT_EXTENSIBLE) [FR# 801015], au, aiff, & flac files. (robs)

So you need to upgrade.

stf92 · 10-25-2012, 09:56 AM

Quote:

Originally Posted by highpass

From the changelog:

sox-13.0.0 2007-02-11
o Add support for 24-bit PCM raw, wav WAVE_FORMAT_EXTENSIBLE) [FR# 801015], au, aiff, & flac files. (robs)

So you need to upgrade.

There are two different problems here. One, sox doesn't understand the syntax, two, it seem not to recognize the format. I think I must solve the first one first. -b 24, -b 16, et cetera are being taken as file names.I have used sox 12.18.1 in the past and never saw something like this. And the O.S. has just been installed.