[sdiy] MIDI spec
Ingo Debus
debus at cityweb.de
Fri Dec 6 16:50:19 CET 2002
Seb Francis wrote:
> Ingo Debus wrote:
>>I found that I can swamp *any* MIDI receiving device when I program a
>>simple CV to MIDI converter: just read the ADC and output the data as
>>MIDI CC in an endless loop. It needs at least a few milliseconds delay
>>in the loop to work properly.
>>
>>The receiving devices I tried include my Mac running Logic or
>>SoundDiver, and my Roland S-760 in MIDI monitor mode.
>>
>
>
> This sounds strange .. consider a big SysEx dump - this can be a
really long continuous stream of data
Hm, perhaps a long Sysex dump takes less processing power than many CC
messages? Still strange that SoundDiver's MIDI monitor screws up too.
> Did you try sending them on a channel which is not mapped to any
voice for example?
No. I should have done that.
I could also have watched the MIDI output on the scope. With repeating
three byte messages this seems possible. But since adding the delay
fixed the problem I didn't investigate any further.
Ingo
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