On Thu, Sep 09, 2004 at 11:21:35AM -0700, Mark Knecht wrote:
On Thu, 2004-09-09 at 11:02, Eric Dantan Rzewnicki
wrote:
ecasound!
ecasound -a:1 -i:mono1.wav \
-a:2 -i:mono2.wav \
-a:1,2 -f:24,2,96000 -o:stereo.wav \
-a:2 -erc:1,2 -eac:0,1
Do that all on one line. The returns are escaped to make it easier to
read. This creates 2 chains, one for each input mono wav file. Both
chains are connected to the same output file. You have to set the format
for the output because ecasound defaults to 16,2,44100. You don't need
to set the format for the inputs if they are .wavs because ecasound will
read the info from the wav headers. Then for chain 2 you route channel
one to channel two (-erc:1,2), and mute channel 1 (-eac:0,1).
-ERic Rz.
Thanks. I'll give that a try. At least that handles step one,
assuming
no audio problems are created.
If step 2 was downsampling to 16 bit 44.1kHz, then just change the -f
above to: -f:16,2,44100 ... sorry I missed that bit.
The internal sample rate conversion is linear interpolation, I think,
which works ok. But, if you have libsamplerate installed ecasound can
use that instead for higher quality conversion. libsamplerate support is
enabled at ./configure time. I always install ecasound from source, so
I'm not sure how the various distros compile and package it. I suppose
on one of your gentoo boxes that should be no problem.
-Eric Rz.