Fons Adriaensen <[email protected]> a écrit : > Most stereo recordings are made to be reproduced by two speakers, > seen by the listener at an angle of 60 to 90 degrees, and such that > the signals from either speaker reach both ears. That is the way it > is supposed to work. There is a solid theory behind this. Calling > this 'crosstalk (a term which has a negative connotation as a defect > of audio equipment), and the cure 'crosstalk cancellation' amounts to > gross intellectual dishonesty. The signals you find on the vast > majority of stereo records are _not_ meant to be delivered one-to-one > to the ears.
I understand your clinical point of view, but I don't consider the act of listening to reproduced music as a scientific activity. Each time a playback occurs, it can be a new creation, not always a perfect repetition of past events. I admire the virtues of hi-fidelity, but I don't have the required budget (and mindset) to play this game. Most honest people are listening to stereo in any possible ways, including some twisted people who enjoy stereo with XTC. :-) > XTC will work (within some limits) on binaural recordings, and it > produces a sort of spatial effect on some of those that are badly > engineered for speaker reproduction, e.g. using widely spaced omni > mics as the main source. I never experienced convincing "3D" with binaural recordings, either with headphones or XTC. Many stereo recordings are better than binaural recordings. > It also can provide some 'spatiality' on > TV sound, helped by the fact that when watching a screen in front > you are unlikely to face other directions than the one to the screen. True: XTC is not ideal for dancing. > Starting from stereo there is little Ambisonics can do. One some > (mostly classical music) recordings, you can add either algorithmic > or convolution reverb to mimic the acoustics of a real concert > hall, and this can be quite effective. An AMB reproduction rig > can also do better room correction than would be possible with > just two speakers. Interesting. The same trick is used with ambiophonics. What I'd like to avoid is to install those distinct setups: - conventional 60 degrees stereo - stereo with XTC - 5.1 and 7.1 - ambiophonics (with 4 speakers) - ambisonics Ambisonics is often described as THE grand unified theory of audio, but it's just one more. I accept it as one of the best, even if I don't understand its strange maths. I'd really like to understand that "spherical harmonics" business, but I'd have to go back to school... -- Marc _______________________________________________ Sursound mailing list [email protected] https://mail.music.vt.edu/mailman/listinfo/sursound
