Laserdisc captures with DV camera and PCM audio?

[superblast]

Has anyone found a way to capture the video portion of a laserdisc through a DV camcorder and the audio portion through the digital output of the laser player at the same time? Should I capture each seperately and then try to combine them for output to DVD afterwards? I understand that PCM audio will take up a lot of space on a DVD but I've got a couple of music laserdiscs that only run about an hour so I should have some space to work with. Thanks for any suggestions.

[flaninacupboard]

If you want your capture to be DVD compliant you can't use the original audio. laserdisc is sampled at 44.1khz, DVD requires 48khz so at some stage it needs to be resampled. the easiest time to do this is when capturing the video, so you don't have any synch issues. simply connect your phono outs from the LD player to the phono ins on the DV camera, and it will record the signal as 48khz PCM.
there is another way to do this, which -may- produce higher qaulity, but does mean seprate recording, and synching is a pain.
you can record the digital audio output directly onto a cd-r with a standalone cd recorder, then rip the disc to a wave file on your pc. as i said it needs to be resampled to 48khz anyway, and i've never got this method to work correctly, i -always- have synch issues.
i also remember reading that ntsc laserdisc audio is sampled at 44050hz instead of 44100hz(cd standard) again causing synch issues.

[SLK001]

All laserdisk players (at least, I have not seen one without these) have separate L-R baseband output ports (the RED and the WHITE jacks). Just record using these. If you try to use the digital outputs, you open yourself to all kinds of headaches.

[superblast]

simply connect your phono outs from the LD player to the phono ins on the DV camera, and it will record the signal as 48khz PCM.
there is another way to do this, which -may- produce higher qaulity, but does mean seprate recording, and synching is a pain.

That's cool. I was afraid of that but most of the audio tracks on those music laserdiscs were probably taken from the linear audio tracks of the master tape anyway so there probably won't be any difference. I remember being pretty disappointed with the sound quality of some of those laserdiscs. Well, thanks for your tips guys.

[kitty]

As for the audio once it is in the computer in a DV AVI - you'll probably be encoding to MPEG2. I highly suggest using the MPEG encoder to output MPEG audio instead of making the audio PCM - it will be alot smaller and if encoded at the same time avoid sync problems at that step.

[drewson99]

not to hijack the original question, but is there a LD drive which will read LDs as data (hooked up to a PC SCSI/ or some other data cable) sort of like a DVD-ROM (I guess a LD-ROM)

i seem to remember my high school having some pretty fancy LD machines which were for educational LDs which were multimedia, and I thought they had some type of capability like this (but I may be way wrong)

[superblast]

not to hijack the original question, but is there a LD drive which will read LDs as data (hooked up to a PC SCSI/ or some other data cable) sort of like a DVD-ROM (I guess a LD-ROM)

i seem to remember my high school having some pretty fancy LD machines which were for educational LDs which were multimedia, and I thought they had some type of capability like this (but I may be way wrong)

You're probably thinking of the industrial laserdisc recorders. They were pretty cool! But, LD video is analog so it wouldn't be possible to directly link the output to a computer (without an A/D converter).

[flaninacupboard]

actually LD-ROM did exist! i'm not sure it ever made it out of japan, but it must have been cool for those people who could afford it, given that they would have 4.5 gigs or so of data on an LD-ROM while we were still using floppies! LD even predates the CD you see.......