[sdiy] Midi problems
Scott Evans, Gen Mgr
esresource at earthlink.net
Mon Apr 22 11:57:27 CEST 2002
My Matrix-12 does.
S.
Terje Trane wrote:
>
> Are there any real-life synths that use note-off velocity? And is it useful?
> (Does anybody have examples?)
>
> I'm planning to make a dual manual midi keyboard and are thinking of what I
> want to put into it.
>
> > -----Original Message-----
> > From: owner-synth-diy at dropmix.xs4all.nl
> > [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Thomas Hudson
> > Sent: Wednesday, April 03, 2002 10:47 PM
> > To: Tim Ressel
> > Cc: Synth-Diy
> > Subject: Re: [sdiy] Midi problems
> >
> >
> > 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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