On Tue, March 15, 2016 7:03 pm, Yassin Philip wrote: > > > On 03/16/2016 01:49 AM, Robin Gareus wrote: >> On 03/16/2016 02:45 AM, Yassin Philip wrote: >> >>> But... How do other plugins do? >> most listen to all channels. > I meant, how do they do that? I suppose it's in the LV2 ttl file > <https://bitbucket.org/xaccrocheur/kis/src/2d12ab34ff10c67a0f99fa562fa50560f19454a3/kis.ttl?fileviewer=file-view-default>, > I'd like to know where to look in the LV2 docs, but I somehow confuse > terms, port index, channel number..?
Are you kidding? MIDI is a single data stream... two wires to form the circuit. Channels are just different data. So the plugin receives 16 channels (if it wants them or not). The plugin has to filter the data to get the channel(s) it wants to play with. The plugin can decide to deal with only one channel and throw the rest of the data away, or it can assign each channel to do different things such as a different sound for each channel. I suppose a plugin could be made that treated all 16 channels as if they were the same, but most people would call that broken. On the other hand, the controlling keyboard can decide to only send one channel (Like my DX7 BTW) or more than one. Keyboards with auto accompaniment would use other channels for drums, bass and chording and leave the keyboard input it's own channel or channels. A single keyboard might split the keyboard to send potions of the keyboard with different channel data.... but in the end it all goes over the same wire. -- Len Ovens www.OvenWerks.net _______________________________________________ Linux-audio-dev mailing list Linux-audio-dev@lists.linuxaudio.org http://lists.linuxaudio.org/listinfo/linux-audio-dev
