On Sun, Apr 24, 2016 at 05:01:55PM +0200, Lorenzo Sutton wrote:
> Thanks for testing... However I'm not really sure what to make out of
> that apart from assuming that the use case isn't directly covered by
> fluidsynth?
>
> I imagine the easiest workaround would be starting multiple fluidsynth
> instances, maybe lowering poliphony (not sure what impact this has on
> resource consumption), possibly scripting it...
With stereo samples, "-L" seems what you want but I don't intend to
influence your choice.
Perhaps unclear but the follow options are the same (but '-o' is buggy):
a) -o synth.audio-channels=4 -o synth.audio-groups=4 -o audio.jack.multi=no
b) --audio-channels=4 --audio-groups=4
c) -L 4 -G 4
d) -L 4
Proof (src/fluidsynth.c):
case 'L':
audio_channels = atoi(optarg);
fluid_settings_setint(settings, "synth.audio-channels", audio_channels);
break;
[...]
if ((audio_groups == 0) && (audio_channels != 0)) {
audio_groups = audio_channels;
}
Note: some options (i.e. "audio.output-channels") are registered but
never used.
With "-a jack -L N", there is a single jack client with N*2 outputs.
In my previous example (-L 4):
output ports l_00 and r_00 for the samples used with midi chan 1
output ports l_01 and r_01 for the samples used with midi chan 2
output ports l_02 and r_02 for the samples used with midi chan 3
output ports l_03 and r_03 for the samples used with midi chan 4
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