Re: Changing the format of audio from AC3 to MP3
- From: shamino@xxxxxxxxxx (David C.)
- Date: Tue, 01 May 2007 03:58:49 GMT
sbt <dogbreath@xxxxxxxxxxxxxxxxxxxxxx> writes:
He asked about AC3, not AAC. AC3 is sometimes referred to as Dolby and
is a common audio format muxed into the VOB files on DVDs (in fact,
compliant NTSC DVDs require that at least one of the audio tracks be
either PCM or AC3). AAC is "Advanced Audio Codec" (essentially MPEG-4
audio) and generally has the extension m4a (or m4p, for the DRMed
stuff sold by the iTunes Store).
If he's looking for a way to rip a soundtrack from a DVD, the easiest
solution is to use something like Ambrosia's "WireTap" to capture the
computer's raw audio stream while the DVD is playing.
I've done that a few times. Capture everything to a huge AIFF file,
then edit/trim/splice the result into tracks, then load into iTunes,
which I use to compress the tracks into AAC.
The only thing to watch out for here is to make sure your computer
doesn't make any other sounds during the capture, or they'll get into
the audio file as well. If you disable the system alert sound and don't
run any other apps while the audio is captured, it should work OK.
-- David
.
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