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Beyond MIDI [was Re: Questions on data in MIDIPackets]
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Beyond MIDI [was Re: Questions on data in MIDIPackets]

Kurt Bigler writes:
> on 2/25/02 9:58 AM, Bill Stewart <email@hidden> wrote:
> > The MIDI Services on X are just that - getting MIDI data in and
> > out of the system to MIDI Devices (and some IA facilities). How
> > could we possibly design and implement an API for a protocol that
> > doesn't exist yet and has no real hardware support?
>
> My thought was that by providing an alternative to MIDI Services that uses
> the abstractions you describe in your next paragraph...
>
> > We also know that MIDI is not the be all and end all of these kinds of
> > protocols (particularly for Software based rendering) so we specifically
> > provided APIs for the MusicDevice component (AudioUnit/MusicDevice.h) that
> > allows for:
> > Floating Pt note numbers
> > Floating Pt parameter lists to new notes of arbitrary lengths
> > Arbitrary numbers of groups (ie. Think MIDI Channels) - where also groups
> > are NOT defined to be notes on a particular instrument, but are user define
>d
> > Floating Pt parameter values
> > Sample offsets for all of these.
> > (As well as MIDI APIs)

I think CNMAT's Open Sound Control protocol
<http://cnmat.CNMAT.Berkeley.EDU/OSC/> might fulfill many of your
requirements. It's supported as a communication protocol by the more
popular music programming/signal processing environments like
SuperCollider and Max/MSP.

CNMAT gives away C source code for sending and receiving OSC.

A project I've been kicking in the back of my head, but have been too
lazy to implement, is to write a program that accepts OSC and plays
the events using the SoundFont/DLS audio unit.

If I understand the above discussion, it looks like an OSC receiving
MusicDevice component could be a worthwhile project too.

- sekhar

--
C. Ramakrishnan email@hidden
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References: 
 >Re: Questions on data in MIDIPackets (From: Kurt Bigler <email@hidden>)



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