[sdiy] Midi problems

[Terje Trane]

The only differense in the protocol is that note off starts with 8 and note
on with 9.

90 3c 40 <- Middle C pressed with a velocity of 64.
80 3c 40 <- Middle C released with a velocity of 64.

The other possibility is obviously to send note on with 0 velocity and save
the control byte (called running status). Must be something like:

90 3c 40 <- press middle c
3c 00    <- release it
3e 40    <- press d
3e 00    <- release it
40 40    <- press e
40 00    <- release it



> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Dave Krooshof
> Sent: Monday, April 22, 2002 1:22 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: RE: [sdiy] Midi problems
>
>
> >Are there any real-life synths that use note-off velocity? And
> is it useful?
> >(Does anybody have examples?)
>
> Technical:
> I'm not sure wether a note off midi message sends enough bits
> to contain the velocity data as well. You should check the midi protocol
> for that. I vaguely remember that the note off message is a shorter one.
>
> On the usefullness, musically:
> You could patch that data into virtully anything. Data is data.
>
> I'm a bassplayer. To me, the moment and the way a bass note stops
> matter about as much a the note-on characteristics.
> I imagine the control of the R in ADSR.
> I imagine filter frequncies running from 4KHz to 10Hz in
> different speeds, contolled by the note off velocity.
>
> Herbie Hancock was on the dutch tv this morning.
> I noticed the way he released the keys was an important
> aspect of his style and expression. So, yes it is usefull.
>
> My question is: How do you measure it physically?
>
> Dave
>
>
> --
> ____________________________________________________
> And I will make thy windows of agates, and thy gates of carbuncles,
> and all thy borders of pleasant stones. (Isaiah 54:12)
>