12.1 & Audiences

[Martin Naef]

Peter Korsten wrote:
>> Ahh, no, just one - I think I need to explain what Ambisonic is (also: 

> There was an article in Sound On Sound about this a few years ago; quite 
> an interesting read. Isn't the process patented or something?

There was also a microphone test for the latest Soundfield mic not very 
long ago. Patented? I don't know - I'm doing research, not 
commercialisation, so I don't worry about such things... But given the 
free availability of a range of ambisonic tools, I would guess that if 
there was a patent, it must have expired by now. I wouldn't be surprised 
if there were patents around building ambisonic microphones, as that is 
far from trivial...

> And so do you use Max/MSP to do all the processing to convert the WXYZ 
> signal into the 12 separate channels, or something like that?

Yes, there are a series of Max externals as well as VST plug-ins that do 
the hard math. Max ties it all together. I know that people at York 
University are using Nuendo to do some of the editing work, but judging 
by comments on the VST-Dev list, this must be on the awkward side. I've 
used Samplitude for some editing work, pretending that the recording 
represents a quad surround format...

Bye
Martin