Hello,

I did try your CSD file on a Mac and I get minor clicks and "jaggies" in the output at a few spots. The output level was also quite low considering the input sine wave was full-scale amplitude (32767). So, I am not really sure if it is working or not.

I will forward this question on to the developer mailing list and see if anyone can answer it.

Anthony

Hello again,

Here is the response that I received from the dev list. Looks like hrtfer will be obsolete once Csound 5.08 is released. (There is a 5.08 beta on Sourceforge already).

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Subject: Re: [Cs-dev] Fwd. from cSounds.com: hrtfer working?
From: "briancarty"
Date: Fri, February 15, 2008 4:42 am
To: csound-devel@lists...


Anthony,

This is expected behaviour from hrtfer.

Re. low amplitude: a large scaling factor is needed (see manual page).

Re. discontinuities/clicks: this is intrinsic to hrtfer. There is essentially no included algorithm for hrtf interpolation. When the source moves to a nearer measured hrtf, the filter just jumps, hence the clicks.

The example csd also appears to request an elvation of 0-360 degrees. 90 degress is the max elevation.

I have written some opcodes to address these issues for 5.08: hrtfmove,hrtfstat and hrtfmove2. I will be discussing these opcodes at lac for anyone coming along!

Brian Carty
NUI Maynooth