Re: [SoX-users] Using sox as a library

[Michael C. <ch...@mc...>]

On Thursday 25 October 2007 8:13 am, robs wrote:
<snip>
> I'm afraid the SoX lib API is still poorly documented
> and somewhat fluid.
>
> Probably best to use the standard sox executable and a
> scripting language (bash, perl, etc.) for this sort of
> thing.
<snap>

Fair enough.

I am trying to script in Perl.

But (further to mine of Fri, 19 Oct 2007 09:43:28 +0000) can anyone explain 
the following (except the first two, which are just for information):


[james@bond ~]$ sox --version
sox: SoX v14.0.0
[james@bond ~]$ sox test4-1sec.wav out.wav mixer
	 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0
sox mixer: mixer can only take up to 16 pan values
[james@bond ~]$ sox test4-1sec.wav out.wav mixer
	 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1
sox mixer: Invalid options specified to mixer while not mixing
[james@bond ~]$ sox test4-1sec.wav -c 4 out.wav mixer
	 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1
sox mixer: Invalid options specified to mixer while not mixing
[james@bond ~]$ sox -c 4 test4-1sec.wav -c 4 out.wav mixer
	 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1
sox mixer: Invalid options specified to mixer while not mixing
[james@bond ~]$ sox -c 4 test4-1sec.wav out.wav mixer
	 0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1
sox mixer: Invalid options specified to mixer while not mixing

Is this a bug (my patch of  Fri, 19 Oct 2007 certainly 'fixes' it) or have I 
mis-read the documentation??

(BTW if this is a whine about documentation ... not sure if it is ... then I 
am more than happy to convert 
	/sox-14.0.0/sox.txt
	/sox-14.0.0/soxeffect.txt
	/sox-14.0.0/soxformat.txt
	/sox-14.0.0/soxexam.txt
	/sox-14.0.0/libsox.txt
to PDF (there is a PDF root specified in ".confugure --help"'s output). That 
would only make pretty what there is currently, but it might help as a start 
.. ?)

	Michael Chapman