Nicholas Mariette wrote:
IEM's bin_ambi is a sophisticated binaural rendering system via higher order Ambisonic spatialisation to virtual speaker arrays. http://iem.at/Members/noisternig/bin_ambi
FIR~ is very CPU intensive for HRTF processing. It's much better to use frequency domain convolution with fft~ & ifft~ which is the case with bin_ambi.
I've had a look through the files in the pure-data svn at sf.net, but I can't seem to find a complete example of how to use it. It seems very complicated to understand how all the pieces fit together.
So if anyone has a complete example for something like this:
source1~ position1 source2~ position2 ....
| | | |
[some combination of iem voodoo objects ...]
| |
[dac~]
: :
binaural stereo
I would appreciate it a great deal.
I've listed some publicly available HRTF sets on my blog here: http://blog.soundsorange.net/2005/11/09/hrtf/
Thanks, that's a useful resource (some of the links are dead by now, though).
Nick
Claude
On Sep 4, 2008, at 4:09 PM, Claude Heiland-Allen wrote:
Hi all,
I'm considering whether to use the earplug~ HRTF external or some alternative implementation of binaural spatialization.
On the plus side, earplug~ seems quite easy to use.
On the down side, earplug~ seems not to handle any sample-rate stuff at all, so I'm wondering which samplerate the impulse responses in the earplug_data.txt are sampled at (because obviously it would be somewhat weird to use them at another rate...).
I don't really need the interpolation provided by earplug~ either, so I guess I could save some CPU by using FIR~ directly, but then I need to obtain some HRIR's (ideally both at 44100Hz and 48000Hz sample rates).
So: has someone already made a binaural processing patch using FIR~ and some set of impulse responses and would care to share it?
Some context for the curious: I'm trying to auralize 4D space using 4D room simulation, with an "ear" made up of several co-solid listening points in the 4D space, each mapped to a 3D source point for binaural processing.
Thanks for any tips,
Claude
http://claudiusmaximus.goto10.org
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