Hello,

what opcodes would you use for an 8-channel spatialisation? 

Thanks,

Luis

l u i s   a n t u n e s   p e n a 
http://icem.folkwang-hochschule.de/~pena





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Hi Luis,

I'd probably go with Jan Jacob Hofmann's ambisonics setup and choose a
decoding from ambisonics to 8-channel (should work whether for cube or
in a ring).  Jan Jacob has information on his site:

http://www.sonicarchitecture.de/

I'd look at using bformenc1 and bformdec1 for the encoding and decoding:

http://csounds.com/manual/html/bformenc1.html
http://csounds.com/manual/html/bformdec1.html

Those two should be enough to give you a means to work with direction
of sound, though you'll need to add more to do distance of sound. Jan
Jacob's work  builds on top of ambisonics and adds a number of things
like early reflection, doppler effect, and reverb.  I much admire his
work with spatialized sound and would recommend taking a look and
listen!

steven



2010/4/14 Luís Antunes Pena :
> Hello,
>
> what opcodes would you use for an 8-channel spatialisation?
>
> Thanks,
>
> Luis
>
> l u i s   a n t u n e s   p e n a
> http://icem.folkwang-hochschule.de/~pena
>
>
>
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
> Discussions of bugs and features can be posted here
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"
>
>


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I use vbap8 or bformdec1,

Mike.

el 2010-04-14 a las 21:57 Luís Antunes Pena escribió:

> what opcodes would you use for an 8-channel spatialisation? 

apart from the opcodes already mentioned i'd like to add spat3d:

http://csounds.com/manual/html/spat3d.html

you can use it in "free field" mode (without modelling the room, and
hence no reverberation) or include the room in the simulation. but for
that you have to model the room, which is not that easy. the parameters
in the example csd are far from optimal, to put it mildly. it seems
that they try to show that you can get a really huge amount of
reverberation with the opcode. but with proper tuning, you can get
pretty decent results, or can use it in free field mode and add reverb
by other means.

best,

lj


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