Aha, well now I think I might be tracking down why stereo output via
LADSPA isn't working. If I change "policy duplicate" in the LADSPA PCM
definition to "policy none" then suddenly ALSA starts paying attention
to all the 'bindings' definitions, and if I do this:
...
input {
bindings {
0 0
1 1
}
}
...
Then it complains:
ALSA lib pcm_ladspa.c:1283:(snd_pcm_ladspa_parse_ioconfig) Unable to find an
audio port (1) for channel 1
aplay: main:547: audio open error: Invalid argument
So what does this mean? It looks like solving this problem will fix the
mono-only LADSPA output problem.
Thanks,
Adam.
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