On Thu, Aug 11, 2022 at 06:40:28PM +0800, Junfeng Li wrote: > Do the early reflections contribute to elevation perception ?
Well, something which is probably not related to HRTF does. Older people often have hearing limited to 8 kHz or even less, but may still be able to perceive elevation in some way. Early reflections (in a acoustically familiar environment) may play a role. Also of course expectations - remember that human perception is not objective, it is mostly based on a mental reconstruction of a scene. We expect certain sounds to come from above. Even cultural elements may play a role in how certain sounds are perceived. This is very well known in visual perception - for example people who have never lived in a world in which straight lines and right angles are everywhere are not sensitive to some visual illusions based on perspective. But what really puzzles me [1] is why a system that for whatever reason is limited to an 8 kHz bandwidth is expected to provide full 3D audio. It's just not realistic. You can't do a rock concert with a one Watt amplifier. You can't transport a grand piano on a bicycle. [1] Or not. I've known my share of managers who believe that business logic or ideology can bend the laws of physics or mathematics... Ciao, -- FA _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
