In article ,
Robert Morein wrote:
Your thinking has not caught up with the times. Back in 1968, the
Bose 901 provided an ad-hoc form of surround sound, which was a
craved-after novelty at the time.

'Surround sound' from a stereo signal using the out of phase component to
feed rear speakers was already understood well before then.

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*If a pig loses its voice, is it disgruntled?

Dave Plowman London SW
To e-mail, change noise into sound.