be very honest, these is waste of money.



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送交者: steven 于 2005-3-27, 02:02:47:

回答: 看看这个 由 2Cul4U4 于 2005-3-27, 00:24:58:

human beings hear front and back with pinna's aid, it is a little be more efficient to hear the sound in front. As for left and right, I've already said down below the interaural time difference and the intensity tell the difference between left and right depending on the frequency. Therefore, it is totally redendent to make a center channel. Also one very importent aspect is that when human beings hear the similar sound within about 35ms, the appearent direction of the second sound source is the same as the first one. This is called Haas effect. Sound engineers play tricks with these to mix sound.



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