how are stereo signals recorded on records and CDs


I've been thinking over the past few days primarily about records and how the groove contains a stereo signal. Can someone explain it to me in simple terms?

I'm also not really sure how the stereo signal, or any signal, is recorded on a CD. I know the signal is converted into a series of 1's and 0's, there still much be at least two sets of data for a stereo signal that are either combined or read individually.

Can anyone explain this process in simple terms but with some specifics?

Thanks
mceljo

Showing 1 response by 6550c

Really, you need to look it up. Stereo records are quite complex. You really only have one needle and one groove, so stereo records are never really true two chan reproduction. The stereo image is really faked somewhat and illusionary. IIRC, only the left chan. has all the signal. The right chan only has phase diff. from the left. They tried not to put too much info on the right side of the "V" groove because it could really cause distortion in the left chan. of the next goove over.