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On 2014-08-25 14:05, Ingo wrote:
Alsa MIDI was causing problems here recognizing multi in/out MIDI interfaces in a reproducable order.
have you reported a bug? if it's reproducible, it might be fixable as well...
Whether you need more than one physical MIDI cable/interface depends on the amount of traffic that you are generating. And also on the timing precision needed.
yes. that's why i'm talking about logical MIDI ports rather than physical ports. i assume that these logical ports do not suffer from timing problem (as the serial link speed of MIDI does not apply).
For me Pd handles it like your second case anyway whether you have a
single
or multiple interfaces. At least I'm receiving normal MIDI messages
that way
(using OSS MIDI). If there is another way I'd be interested in
finding out.
as cyrille has pointed out, OSS MIDI is really fading out of linux distros.
but in any case, if you are specifying multiple MIDI devices and all are merged within Pd, this sounds like a bug to me (though i might be wrong), as this is inconsistent with e.g. ALSA MIDI, where you get a new "port" (with a new range of 16 channels).
fgmasd IOhannes