Sound engineers enhance the sound of stereo in concerts by shifting the phase
of the stereo loudspeakers. This makes the music sound wider. But the technique
鈥渨orks too well鈥�, according to Q Sound Labs of Calgary in Alberta, the company
that helped develop the technology. If there is a central voice such as a
vocalist, the wider sound makes for a very fat lady.
Q Sound is now patenting (EP 779 764) a circuit that separates the central
voice from the rest of the sound, and leaves it untouched. The stereo music
still sounds wide鈥攂ut the voice remains realistic.
