[music-dsp] real time multichannel digital mixer

[Angelo Farina]

Gianni,
for Windows platform, I suggest Audio Mulch and to employ 2nd-order
Ambisonics methodology for setting the virtual position of each sound
sample.
If the position of each of them is fixed, You preferably will first encode
each sound in a proper 9-channels FMH file (employing the B-Pan freeware VST
plugins by Dave Malham), and store all these files on the HD.
For playing them, use the 2nd-order B-player free VST plugin from Gerzonic,
feeding an Ambisonics decoder (either the Malham or the Gerzonic's one).
You can have many instances of the B-player plugin, and activate each of
them with a Midi command - so, for example, a Midi keyboard can have one
sound attached to each key...
The only limit with the above apporach is that Ambisonics require that the 8
loudspeakers form a "regular" array, such as a cube or an octahedron...
If You want, I can create the AudioMulch "patch" for You...
Bye!

Angelo Farina
P.S.: happy new year!

> -----Original Message-----
> From: music-dsp-admin at shoko.calarts.edu 
> [mailto:music-dsp-admin at shoko.calarts.edu] On Behalf Of Gianni Pavan
> Sent: 03 January 2004 00:57
> To: music-dsp at shoko.calarts.edu
> Subject: [music-dsp] real time multichannel digital mixer
> 
> Hi all,
> 	I'm looking around for a software/hardware tool to 
> support multichannel interactive playback in a exhibition.
> 
> The performance should be based on a collection of monophonic 
> sound files, some short, some long, to be played back by the 
> performer(s) through an 8 channels loudspeaker system to 
> create a 3D acoustic environment.
> In my vision, each time a file is played, it should be 
> possible to set a level and possibly a delay for each 
> loudspeaker. Also, each time a file is played it should mix 
> with any previous file still playing.
> Of course, I could think at a limit, say, no more then X 
> files played at the same time.
> 
> I'd like to find something simple, possibly to be controlled 
> by a single PC with a multichannel sound board. The 
> driver/software should be able to accept commands like this:
> 
> Play filename, ch1level, ch1delay, ch2level, ch2delay,... 
> ch8level, ch8delay.
> 
> with the ability to mix any new sound stream to those still active...
> 
> I'd like to hear your hints to find something useful for my needs...
> 
> I thank you all in advance,
> Gianni
> 
> --------------------------------------------------------------
> Gianni Pavan
> Email gpavan at cibra.unipv.it
> Centro Interdisciplinare di Bioacustica e Ricerche Ambientali 
> Universita' degli Studi di Pavia Via Taramelli 24, 27100 PAVIA, ITALIA
> Tel  	   +39-0382-507874
> Fax        +39-02-700-32921
> Web       http://www.unipv.it/cibra
> 
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