Re: [fluid-dev] Channel handling

[Tom M.]

>  I think what would be best is having each note class on its own channel.

fluidsynth only allows to render midi channel(s) to dedicated audio channel(s), 
the so called multichannel-rendering. To me your problem of 
note-to-audio-channel-rendering sounds very custom and I cannot think of a way 
integrating this feature into fluidsynth without making synthing and mixing 
more complicated, memory-hungry and exposing more complexity via the API to the 
user.

I think this problem is best to be solved by using fluidsynth's API to 
interfere the midi events and keeping track of the note on / off events that 
are sent to the synth by modifying the midi channel of those events 
accordingly. new_fluid_midi_driver() and new_fluid_midi_router() allow you to 
specify your own custom midi processing function that could take care of that. 
Finally you would need to pull out the audio using fluid_synth_nwrite_float(), 
that would give you the separate stereo outputs rendered for midi channels 
1,2,3,...


Tom