[lively-kernel] Lively Audio

[Alessandro Warth]

Hi Jay,

While the MIDI format doesn't care about matching ONs and OFFs, there's a
good chance that the player tidies up (by sending an "all notes off" message
to the hardware) once it's done playing a file. So this could end up working
in some platforms, but not in others...

I guess we won't know until we try.

Cheers,
Alex

On Thu, Apr 22, 2010 at 6:16 PM, Jay Hardesty <jay.hardesty at gmail.com>wrote:

> >Second byte contains pitch and velocity
> CORRECTION: meant second and third bytes contain pitch and velocity
>
>
> >The real question is :  Do you know if midi players allow a note to
> >be started in one file and ended in another?  This would allow
> >key-down and key-up events to come in real time from the keyboard.  I
> >would make this work if the answer is yes.
> >
> >Thanks
> >       - Dan
>
>
> As far as I know a MIDI player does not care where (or from which
> file) a MIDI ON, or subsequent MIDI OFF message comes from.
> Each is just a pair of bytes arriving from wherever.
>
> (That is, the first byte MIDI ON event  is 144 for channel 1, 145 for
> channel 2. etc. up to 159 for channel 16. Second byte contains pitch
> and velocity. MIDI OFF events have first byte set to 128 for channel 1
> up to 143 for channel 16 etc)
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