[sdiy] Midi problems

[Tim Ressel]

So like, how is poly supposed to work? 

--TR

PS I'm beginning to think midi SUCKS!

--- Thomas Hudson <thudson at tomy.net> wrote:
> On Wed, 2002-04-03 at 14:17, Tim Ressel wrote:
> > Hey all,
> > 
> > After days of avoiding eye contact with the
> Midi2cv
> > project which has been consistantly kicking my
> butt,
> > I've dug back into it. 
> > 
> > Guess what? I took a look at the midi info from my
> > kbd, and I seem to be getting Note On ($9x)
> commands
> > for both key down and key up.  
> > 
> > Have I missed something here?
> > 
> Most keyboards implement note off as a note on
> message with
> zero velocity. The reason being is that they can use
> running
> status. Running status allows one to not resend a
> status byte
> if the next message has the same status. So intead
> of a key
> down and up being:
> 
> 0x90 0x64 0x64 
> 0x80 0x64 0x0
> 
> you'll have:
> 
> 0x90 0x64 0x64
> 0x64 0x00        <= no need to resend 0x90
> 
> A note on with velocity zero is equal to a note off.
> 
> Tomy
> 
> 


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