> On 09/06/2012 11:20 PM, Tom Breton (Tehom) wrote:
>
>> There has always been a separate conductor track in RG exported MIDI.
>
> There's the problem then, Tom.
>
> He wants to get all the stuff on channel n by assigning everything to
> instrument n. There is no direct way to set the channel, but choosing
> instrument #n with the channel fixed to it ought to do the job.
Yes, that's what I understood too.
> Now we apparently export a separate conductor track. I didn't even know
> that. (I just never use standard MIDI files, and everything I've done
> of any consequence for the past 10 years is in .rg format.)
I know what you mean. I just use RG files in my work too.
> The MIDI export logic probably just grabs channels on a first come,
> first serve basis and starts with 1 for the first track, which is the
> conductor track, then increments from there. The result I'd expect to
> see is that we always export stuff to use channel n+1, with n never
> attainable unless n >= 2.
Actually, the MIDI export logic itself doesn't even say channel numbers.
The only way it thinks about channels is to make sure exported tracks are
unambiguous wrt internal track and channel. Channels get into the MIDI as
program change events that live on tracks. The import logic seems to get
us back to channels by keeping a running map of what channel a track
thinks it's on.
> (Bear in mind I'm using "end user" MIDI channel numbers where they're +1
> relative to the actual numbers we use internally. 0 is 1, 1 is 2, etc.)
Right.
Tom Breton (Tehom)
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