RE: [linux-audio-dev] surround/n-channel panning

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: RE: [linux-audio-dev] surround/n-channel panning
From: Richard W.E. Furse (richard_AT_muse.demon.co.uk)
Date: Tue Mar 12 2002 - 01:09:44 EET

I don't understand the pseudocode, but at first glance it looks fairly
wrong.

I'd take a look at VBAP (excellent paper at
http://lib.hut.fi/Diss/2001/isbn9512255324/isbn9512255324.pdf). For a
horizontal rig this boils down to a standard cos/sin pan law across the
nearest speaker pair.

And watch this space, because I've an interesting project on its way...

--Richard

> -----Original Message-----
> From: owner-linux-audio-dev_AT_music.columbia.edu
> [mailto:owner-linux-audio-dev_AT_music.columbia.edu]On Behalf Of Paul Davis
> Sent: 11 March 2002 19:10
> To: linux-audio-dev_AT_music.columbia.edu
> Subject: [linux-audio-dev] surround/n-channel panning
>
>
> ignoring the subtleties of things like ambisonics and filtered
> channels for the time being, am i right in thinking that surround
> panning is just simple math? my mental model is:
>
> total_distance = 0
>
> foreach speaker
> speaker.distance = speaker.compute_distance (pan center);
> total_distance + speaker.distance
>
> foreach speaker
> speaker.pan_gain_coefficient = speaker.distance/total_distance;
>
> i think there is more to it than this. i know that this doesn't work
> for stereo, for example - it doesn't produce an equal power pan.
>
> can someone point me at some good references?

New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Tue Mar 12 2002 - 01:03:40 EET