* Jeanette C. <julien@MAIL.UPB.DE> [2018-09-16 19:35]:
> Hey hey,
> I'd like to change the direction of an audio source in a 3d or stereo
> context. Assuming that the source is small enough so that the position
> doesn't need to change at all. Is there an approximation of how to change
> the sound to give the impression of a source turning?
I think the key here is to ask, as the directional sound source turns
away, what does it radiate to instead? Now if these are reflective
surfaces aka walls of a room, the reflections would get louder in
relation to the direct sound. This could be modelled. As reflections
mostly absorb higher frequencies more than lower ones these, this
filtering can be taken into account as well.
If the source turns away from the listener, rather than gets displaced, I
would consider the Doppler effect neglibile.

best, Peter

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