On Friday August 15 2003 03:47 pm, Brant Fitzsimmons wrote:
> Michael Adams wrote:
> >On Fri, 15 Aug 2003 10:36:02 -0400
> >
> >Brant Fitzsimmons <[EMAIL PROTECTED]> wrote:
> >>Anarky wrote:
> >>> is there like a audio conversion tool that can handle all
> >>> different stuff like this (like saving as an mp3 with a
> >>> different bitrate/stereo/mono, converting to wave, or
> >>> compressing back)? Is there like an unified toool like this
> >>> with some gui?
> >>
> >>Yes.
> >>
> >>http://rezound.sourceforge.net/
> >
> >Wouldn't this be accumulating losses exponentially?
> >Like 5% loss in original mp3. Convert to wav then 5% loss from
> > wav to ogg = total loss of 25%. Of course i may be blowing
> > smoke.
>
> I don't believe it would accumulate like that. I think that if
> you recompress an .mp3 to another lossy file format you *may*
> have a cumulative loss of quality relative to the original
> uncompressed .wav file. I think it depends on the compression
> format that is being used on both files.
>
> If you save an .mp3 as a wav file it will have the same quality
> as the .mp3 but with a much larger file size. It will not
> increase the quality of the file. It can't get any better than
> the file from which it is created (the mp3). It will sound
> exactly the same and will take up 5, 6, 7 or more times the space
> on your hard drive depending on the bit rate of the original
> file. To get the best quality you need to create compressed
> files directly from the original wav.
Well y'all surely got this figured better than I can. I know tho
if I take a 800mb movie an an rescale it usin
mencoder input.mpg [or .avi or .wmv] -ovc lavc -lavcopts
vcodec=mpeg4 -vop scale=640:480 -oac copy -o output.avi
The output.avi MB's are cut in half, the quality difference isn't
discernable. I can burn it to a CDr along with a smaller movie,
whereas before it wouldn't fit by itself. I've yet to have a need
to rescale mp3's or wav's tho. Cdr's are cheap, I already fit
around 20 to 25 normalized wav's to an audio CDr, 100 to 125 mp3's
to a data CDr ;)
--
Tom Brinkman Corpus Christi, Texas
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