[BC] Turntables (WAS:Achieving good S/N)

[Harold Hallikainen]

> The dummy head technique was never considered a stereophonic technique
> because the effect didn't work on loudspeakers. It required headphones,
> and
> even then, there was a problem getting the virtual image to appear in
> front
> of the listener because of differences in pinnae between the dummy head
> and
> the actual listener.
>


I always thought binaural was interesting. Sorta like putting your ears on
extension cords. It SEEMS, though, that binaural would not be enough to
duplicate the original sound. I've always wondered how we can tell if a
sound is in front of us instead of behind us. We might get some clue from
echoes. But I think the real way we tell is by slightly turning our head.
If we turn to the right and the sound gets closer to our left ear
(measuring time delay) we know the sound is in front of us. If it gets
closer to the right ear, it's behind us. With binaural headphones, the
delay does not change as we turn our heads, so the image sort of follows
us around. Perhaps intelligent binaural headphones exist that detect head
rotation and adjust audio delays based on head position. Do they?

Harold

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