HOw do I make a DVD from my Laserdiscs (including 5.1ch AC..

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

On 10 Dec 2004 02:52:21 GMT, Leonid Makarovsky <venom@cs.bu.edu>
wrote:

>In case you record from LaserDisc,
>you need to set the sample rate to 44.1kHz to match the input

Careful: I'm quite sure that while LD PCM audio is 44.1kHz, the
demodulated AC-3 is 48kHz! So the SB can't be eliminated just by its
sample rates alone.

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

"pedro itriago" <73050.520nospam@compuserve.com> skrev i en meddelelse
news:cpavvl$3h1$1@ngspool-d02.news.aol.com...
> Man, how I hate when people behave like being part of the board of
directors
> of a company & just keep stubbornly and robotically repeating that all
> people telling them otherwise are ignorants or fools or whatever.

I never told any in here such a thing. It´s not my problem if you don´t
agree with me. I was looking for evidence of what you claim.

> I don't have my manual right here, but believe me, is there. At least on
> both my sounblaster live and extigy.
>
> Since I don't have it with me around and you keep behaving like a reborn
> saint Thomas, here's a quote from both a guy making a question who, great
> golly, already knows the soundblasters all re-sapmle and the answer from a
> creative representative stating that only two do not resample & even so,
you
> have to tell them not to, otherwise they are set to resample by default.
[snip]

Excactly and that was what I wrote earlier. My card do not resample...
if told not to.

> And here's the link to the creative web forum, just in case you still
don't
> believe:
>
http/forums.creative.com/creativelabs/board/message?board.id=soundblaster&
> message.id=2469&query.id=39288#M2469
>
> I think now you can say I just made that page up to deceive you

Not at all.

/Kenneth Iversen

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

Karyudo <karyudo_usenet@yahoo.com.remove.me> wrote:
:>In case you record from LaserDisc,
:>you need to set the sample rate to 44.1kHz to match the input

: Careful: I'm quite sure that while LD PCM audio is 44.1kHz, the
: demodulated AC-3 is 48kHz! So the SB can't be eliminated just by its
: sample rates alone.

Ooops. Yeah, my post only applies for digital audio (PCM).

--Leonid

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

"Leonid Makarovsky" <venom@cs.bu.edu> wrote in message
news:cpch82$p52$2@news3.bu.edu...
> Karyudo <karyudo_usenet@yahoo.com.remove.me> wrote:
> :>In case you record from LaserDisc,
> :>you need to set the sample rate to 44.1kHz to match the input
>
> : Careful: I'm quite sure that while LD PCM audio is 44.1kHz, the
> : demodulated AC-3 is 48kHz! So the SB can't be eliminated just by its
> : sample rates alone.
>
> Ooops. Yeah, my post only applies for digital audio (PCM).
>
> --Leonid

If you're attempting to make a DVD from a LD, if the LD has AC3 sound, you
would definitely want to use it instead of the stereo PCM soundtrack...

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

Biz wrote:
> If you're attempting to make a DVD from a LD, if the LD has AC3
sound, you
> would definitely want to use it instead of the stereo PCM
soundtrack...

The only problem is that you would have to capture the audio and video
separately and then sync them later -- this can take HOURS of time.
-Junior

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

"unclejr" <watsona@kenyon.edu> wrote in message
news:1102803664.656628.267720@c13g2000cwb.googlegroups.com...
> Biz wrote:
> > If you're attempting to make a DVD from a LD, if the LD has AC3
> sound, you
> > would definitely want to use it instead of the stereo PCM
> soundtrack...
>
> The only problem is that you would have to capture the audio and video
> separately and then sync them later -- this can take HOURS of time.
> -Junior
>

You want to do it right the first time, or just as quickly as possible? If
I'm archiving one of my irreplaceable LDs(ie not available on DVD yet), a
few hours total for the whole project is nothing.

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

unclejr <watsona@kenyon.edu> wrote:
:> If you're attempting to make a DVD from a LD, if the LD has AC3
: sound, you
:> would definitely want to use it instead of the stereo PCM
: soundtrack...

: The only problem is that you would have to capture the audio and video
: separately and then sync them later -- this can take HOURS of time.

If you are capturing from VHS using your TV Tuner card, technically you also
capture audio and video stream separately. Audio stream goes to your sound
card. Video stream goes to your TV Tuner card. If the quartz clock of these
cards mismatch, you have to sync your audio to your video anyway. That's in
theory. In practice I think it adds the speed of the VCR. Soundcard digitizes
the analog sound by sampling it at its own sampling rate. Capture card captures
the finite number of frames and digitizes them. If VCR is a bit faster or slower,
it won't affect how many frames are going to be captured, but it will affect
the speed of the audio. That's cause the catpure card doesn't sample frames, it
captures as they are. The same thing is going to happen when you run composite
from LD to your capture card and then demodulator to your sound card. Here
demodulator samples the sound. So you will have adjust it depending on
demodulator's quartz clock.

When you capture digital sound, you don't have to do anything. The digital
samples are already on the LaserDisc and the alignment of digital audio
samples and analog video frames relative to each other is going to be the
same on LD as on your computer after you capture your video and audio
(digitally) 'cause the audio is copied bit by bit and not sampled.

--Leonid

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

On Sat, 11 Dec 2004 22:37:09 GMT, Biz <biznospam@notatt.net> wrote:

>"unclejr" <watsona@kenyon.edu> wrote in message
>news:1102803664.656628.267720@c13g2000cwb.googlegroups.com...
>> Biz wrote:
>> > If you're attempting to make a DVD from a LD, if the LD has AC3
>> sound, you
>> > would definitely want to use it instead of the stereo PCM
>> soundtrack...
>>
>> The only problem is that you would have to capture the audio and video
>> separately and then sync them later -- this can take HOURS of time.
>> -Junior
>>

>You want to do it right the first time, or just as quickly as possible? If
>I'm archiving one of my irreplaceable LDs(ie not available on DVD yet), a
>few hours total for the whole project is nothing.


A few hours times 250 is a bigger deal. For now I'm just going to record the
video with stereo audio. The movies that have an AC3 soundtrack are all
available on DVD and I'd rather pay the $20 then spend 2-3 hours.

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

If anyone has trouble finding this older card, there are a few left
here ~

http/www.computerhq.com/hardware/partinfo-id-88387.html


Leonid Makarovsky wrote:
> unclejr <watsona@kenyon.edu> wrote:
> : Yes, it is possible and has been posted here and alt.dvd.authoring
ad
> : nauseam. Do a simple google groups search. Here's my solution...
>
> :
<http/groups.google.com/groups?hl=en&lr=&threadm=139de3b3.0310201237.21f2ec70%40posting.google.com&rnum=2&prev=/groups%3Fhl%3Den%26lr%3D%26q%3Dauthor%253Awatsona%40kenyon.edu%2Bac-3%26btnG%3DSearch>
>
> : DD 5.1. You will have to capture with the C-Media CMI 8738 sound
card
> : to get a bit for bit recording of AC-3 audio (from your RF
> : demodulator) onto your computer in PCM (48 kHz, 16-bit, stereo)
> : format. AFAIK, the CMI 8738 is the ONLY chip set that will allow
you
> : to capture the AC3 data without corrupting it. Once you purchase a
>
> Are you serious? So this $30 value card is the only one that will not
mess
> AC-3 up? Very hard to believe.
>
> --Leonid

 

[Guest]

Archived from groups: alt.video.laserdisc (More info?)

TCS wrote:
> On 8 Dec 2004 02:21:31 GMT, Leonid Makarovsky <venom@cs.bu.edu> wrote:
>
>>Karyudo <karyudo_usenet@yahoo.com.remove.me> wrote:
>>: Are you just saying, or have you done it? Because I am quite sure you
>>: don't have to extract/demux/remux; LD AC-3 is already 48kHz. It's been
>>: a long time since I messed around with this, but I believe you have to
>>: record the original WAV at 48kHz, 16-bit stereo.
>
>
>>I don't know about LD AC-3 sampling rate. But LD digital audio is definitely
>>44.1kHz. So when I capture from LD, I always capture at 44.1kHz, and then
>>I resample with SSRC to 48kHz.
>
>
> You're confusing the LD's digital audio with the AC3. It's AC3 is 48khz.

Guess I was wrong, the AC-3 is indeed sampled at 48 KHz. I probably
confused it with LD DTS which is sampled at 44.1 KHz.

Martijn Bouterse