I think Pink Floyd's "A Momentary Lapse of Reason" is recorded in Q sound.
You can get a similar effect from nearly any stereo source by using a speaker cross-talk canceller such as the Carver C-9 sonic hologram generator, or any of a number of similar devices that you can build yourself with a few opamps. You invert the phase and mix some of the left channel into the right and vice-versa. It is also best to add a little delay to the phase inverted signals to compensate for the difference in path lengths between the ears and the speakers (the left speaker sound path to the left ear is shorter than the path to the right ear, etc.). The idea is that the right channel crossfeed signal from the left speaker arrives at your left ear at exactly the same time but opposite phase as the true right channel speaker signal. The two cancel so the left ear mainly hears the sound from the left speaker and the right ear mainly hears the sound from the right speaker. The timing is critical, so there is a very small sweetspot and position of the speakers and listener in the room are critical, but it is really mind-blowing when it works. TD -- tyler_durden ------------------------------------------------------------------------ tyler_durden's Profile: http://forums.slimdevices.com/member.php?userid=2701 View this thread: http://forums.slimdevices.com/showthread.php?t=31050 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
