[net.video] What the heck is a PCM, anyway?

moriarty@fluke.UUCP (10/04/84)

While examining my handbook to my Sony SL-2710 video dream machine, I
noticed that there is a section on recording with PCM options.  Now, one
thing... they never explain what a PCM is!  Guess I'm just ignorant...

This seems to be seperate from captions... there is a special decoder input
for this.  In the diagrams I perused, there is a video & audio in for PCM, a
switch on your input selection for PCM/AUDIO LINE, and a switch on the back
for either PCM or captions.

Any help on this would be greatly appreciated!!

PS  Is there still no one out there who has a Sony Betastack and wants to
share opinions of it?  That would also be a great help to me...

                        "Nun-beating? Good Lord, man, I can't condone THAT!"

					Moriarty, aka Jeff Meyer
					John Fluke Mfg. Co., Inc.
UUCP:
 {cornell,decvax,ihnp4,sdcsvax,tektronix,utcsrgv}!uw-beaver \
    {allegra,gatech!sb1,hplabs!lbl-csam,decwrl!sun,ssc-vax} -- !fluke!moriarty
ARPA:
	fluke!moriarty@uw-beaver.ARPA

sdyer@bbncca.ARPA (Steve Dyer) (10/09/84)

PCM stands for "pulse code modulation", in other words, digital
recording.  I don't know why it would require a different input,
though.  Normally, PCM adaptors produce an NTSC compatible video
signal which is used as a recorder's video input.
-- 
/Steve Dyer
{decvax,linus,ima,ihnp4}!bbncca!sdyer
sdyer@bbncca.ARPA

rfg@hound.UUCP (R.GRANTGES) (10/09/84)

[.]
The recorder's "normal input" is from the TV tuner built in, hence
the need for a switch to an alternate (video or PCM) input.
Dick Grantges  hound!rfg

raan@hp-pcd.UUCP (raan) (10/11/84)

see response posted to textronix!stever on SL-2710 manual questions