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UK HDTV FAQ
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Recording Audio for a DVD



2 Jan 2006 08:37:03 -0800 rec.video.desktop
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rrstudio2...
The audio equipment I have is much better than the audio recording
equipment on my camcorder, so I am going to try recording the audio for
an event on my notebook computer then match it with the video from the
camcorder. I have a few theoretical questions about this.
1) The audio for DVD movies must be 48000hz and 16 bit depth (right?)
So if I record at 48khz and a bit depth of 24, and later reconvert this
to 48khz 16 bits, I would not be losing quality. I just remember once
I was converting sampling rates from 48 to 44.1 and that really reduced
the quality of the final project. I find it much easier to record at
24 bits so I don't have to worry about clipping as much.

2) As a theoretical question, is one was to record the audio at CD
quality 44.1khz, 16 bit, then imported this audio into Premeire
elements, would I have synching issues since the original sampling rate
wouldn't match what the DVD sampling rate needs to be?

3) Any other tips I should keep in mind while attempting to recording
seperate audio for a movie?

Andrew V. Romero

Steve King...
If it were me, I would record at 48 kHz-16 bit and avoid the re-sampling
bother. Run peaks at -6 dbfs. I can't answer your question about Premiere.
Of course, you will need to find some way to synch the video to the audio -
a manual slate, turn the camera on the notebook computer to capture the
clock, an on camera hand-clap, etc.

Steve King
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