In article ,
Brian Gaff wrote:
I know this to be true but have often wondered about the science behind
it. In them old analogue days I built a Mullard circuit for an image
width control. Basically it was a device for adding the sound from the
opposite channel to the other from fully in phase, ie Mono, to
completely out of phase, but in the process, you could often find a
position where the stereo was wider or the sound was more spacious. Of
course it did reduce the central image a bit.. However I built such a
control into Goldwwave using the channel mixing adjustments and yes it
works the same way.
The question is, why?
Brian

To alter width, you normally convert from L&R to M&S. (mono and difference
signal) If you alter the gain of the difference channel only, you alter
the width. Then convert back to L&R.

--
*Eagles may soar, but weasels don't get sucked into jet engines *

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