Re: Merge and pipe channel assignment madness

[Jan Stary <hans@stare.cz>]

> >> https://we.tl/4XNMXikv0J
> >> Y:\sox-14-4-2\sox -M "| Y:\sox-14-4-2\sox J:\Torsten\tst\T72.WAV -p pad 0" "| Y:\sox-14-4-2\sox J:\Torsten\tst\T72.WAV -p pad 1" -b 24 J:\Torsten\tst\output.wav
> >> 
> >> The file has ch1 (a bit) static, ch2 silence, ch3 voice
> >> On merge, the input tracks are reversed (but other files behave random.)
> > 
> > With my installation of SoX, running
> > 
> > 	$ sox -M "|sox T72.WAV -p pad 0" "|sox T72.WAV -p pad 1" output.wav
> > 
> > creates an output file with 6 channels, containing (in this order):
> > 
> > 	1 static
> > 	2 silence
> > 	3 voice
> > 	4 static
> > 	5 silence
> > 	6 voice
> 
> Hi Jan,
> Yeah, that’s what I would expect :-)
> 
> > so I still cannot reproduce your problem.
> > I also tried with the "-b 24" which should be irrelevant - no change.
> > 
> > Can you please also upload your output file?
> 
> Sure, here you go:
> https://we.tl/lRpO2tMTxu

Listening to this file with "play output.wav remix 1" etc, I hear:

	1 silence
	2 voice
	3 static
	4 silence
	5 voice
	6 static

Note that the channels are not "reversed" as you said, it's 2 3 1.
Can you also try with two different 3ch files to see
if it behaves consistently?

> I must say, I’ve only checked in Audacity, but I doubt that would matter...

Hm, have you done anything else to the file with Audacity?
Are you sure Audacity does not reorder the channels somehow?
Please keep it simple and only use SoX: what is your exact SoX command,
and what do you hear when listening to the individual channels with play?

Other than that, I don't have any idea why SoX
would change the order of channels at all.

> Btw, I’ve only tested on Windows (7, but I doubt that will matter….)

I don't think that would be causing it.

	Jan


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