On 2011-01-17, [email protected] wrote:
I'm wondering if the phase anomalies could be employed in a positive fashion.
I was led to wonder about the same, but from a different direction. I mean, how about trading total phase delay for differential phase delay, like everybody did in the analog heyday? The fact is, with ambisonic, differential phase delay is a real problem, while psychoacoustic theory tells us slim to moderate aggregate phase delay is barely audible, as long it's close to minimum phase.
I think even Craven went with the latter psychoacoustic justification once in an AES paper, arguing for non-linear-phase D/A converters. (Not quite sure about that though.) In any case, if you have to optimize, I'd say it could pay off to look into purely IIR, differentially matched designs which forgo aggregate phase linearity.
-- Sampo Syreeni, aka decoy - [email protected], http://decoy.iki.fi/front +358-50-5756111, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2 _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
