Subject: Re: [ecasound] Loops weirdnesses
From: Kai Vehmanen (email@example.com)
Date: Sun Jun 03 2001 - 22:42:10 EEST
On Wed, 30 May 2001, S. Massy wrote:
> Ok, so I'm trying to use loop devices to process the channels of a
> stereo file separately in rt:
This was a bug in the loop-device code. I just committed the fix to CVS
and at least your it doesn't seg.fault any more.
> -b:512 -sr:44100 -n:test -X -z:intbuf -z:noxruns -z:nopsr
> -a:1,2 -f:16,2,44100 -i:temptest.wav
> # We will read our data from that file.
> -a:1 -f:16,1,44100 -o:loop,0
> -a:2 -f:16,1,44100 -o:loop,1
> # Split the data:
> # - As loop0 is opened mono only channel one passes through.
> # - ch2 is routed to one: -erc:2,1
> -a:3 -f:16,1,44100 -i:loop,0
> -a:4 -f:16,1,44100 -i:loop,1
> -a:3,4 -f:16,2,44100 -o:alsa,sbl
> # Read from both loops and combine it back in the output to the soundcard.
> -a:2 -erc:2,1
> # See above, ch2 becomes the single channel passing through loop1
> -a:3 -efl:100
> # Channel one would have a lp filter applied to it.
> -a:4 -erc:1,2 -efh:15000
> # Loop1's single channel is routed to soundcard's ch2 and a hp filter is applied.
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