Re: [ecasound] Combine 3 mono audio files in one 3 chanels audio file

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Subject: Re: [ecasound] Combine 3 mono audio files in one 3 chanels audio file
From: Armand Bendanan (armand.bendanan_AT_sofrelog.com)
Date: Tue Oct 01 2002 - 14:05:40 EEST


you wrote :

-------------------------------

This one is almost correct. Let's make a few changes:

ecasound \
     -a:1 -f:16,1,44100 -i file1.wav \
     -a:2 -f:16,1,44100 -erc:1,3 -eac:0,1 -i file2.wav \
     -a:3 -f:16,1,44100 -erc:1,2 -eac:0,2 -i file3.wav \
     -a:1,2,3 -f:16,3,44100 -o trio.wav

In other words when copying channels 2 and 3, we mute
the source channel (ch1 in both cases) after copying
the data.

-------------------------------

I tried that and it almost works.

1/ In fact, we also need to mute *all* the other channels not only the
souce channel:

ecasound \
     -a:1 -i file1.wav \
     -a:2 -erc:1,2 -eac:0,1 -eac:0,3 -i file2.wav \
     -a:3 -erc:1,3 -eac:0,1 -eac:0,2 -i file3.wav \
     -a:1,2,3 -f:16,3,44100 -o trio.wav

2/ The -f:16,1,44100 is not nedeed for the input files.

3/ The last thing is :

The first second of the output wav file is garbage for the third
channel, I don't know why !

-- 
Armand Bendanan
Sofrelog
armand.bendanan_AT_sofrelog.com
----------------------------


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