Follow up on Metallic Audio

From: HaTcH (urmom_at_hotmail.com)
Date: 02/29/04


Date: Sun, 29 Feb 2004 13:49:14 -0500

Its taken ALOT of time, but I think I have figured out what the problem is.
It seems that my DV codec is outputting the audio at 48khz instead of 44.1.
I don't think windows Movie Maker supports 48khz audio, and thus I get this
bad quality. I ripped a track from a cd at 48khz, and it would play fine in
Winamp, but in MovieMaker, the file gets that metallic quality about it,
even before the movie is produced. It remains the same when outputting the
movie file.

I believe that this occurs when a file is converted between sample rates,
wether it be 44.1 to 48 or 48 to 44.1.

There is no setting under System>Device Man>Sound Video Controllers>Video
Codecs>DV soft that lets me change the audio quality. How can I fix the
problem knowing this new information?

~~~~~~The original post is below.
Well I tried to change the audio to an mp3 with a bitrate of 320 encoded
from a wav with 1141. Then I tried to use the wav-file as the audio source.
Both times, the audio came out the same buzzy metallic sound. Is there
something elso I can do?

"The Disney Source" <webmaster@disneylandsource.com> wrote in message
news:pXhXb.176258$U%5.837726@attbi_s03...
> Typically this "metallic" sound comes from a low-bitrate on the audio
> encoding and the compression of WMV makes it sound tinny. People rarely
pay
> attention to the audio bit rates, and usually the program default is quite
> low to leave more bandwidth to the video. In most programs you can specify
a
> specific bitrate for audio encoding. Depending on what you're doing, you
may
> be able to do the audio in mono, but choose a higher bitrate. This happens
> to me a lot, I encode a huge file, but once I get to editing it, I figure
> out I don't like the audio quality and have to start from scratch.
>
> - Chris
>
>
> "HaTcH" <urmom@hotmail.com> wrote in message
> news:#zk5cup8DHA.2832@tk2msftngp13.phx.gbl...
> > I have been making movies and saving them as DV-AVI files. Now, the
> problem
> > i'm having is rather difficult to explain, but when playing back the avi
> > file, where the audio bass peaks, it seems to have been cut off and left
a
> > wierd metallic sound, kindof like a buzzing. It matters not what format
> the
> > original audio is. WMV files are played back flawlessley. I uploaded a
> clip
> > of an arbitrary file i made as an example, from john lennon's imagine:
> > http://zoids3d.bearcreekfire.com/downloads/soundexample2.mp3 (>500kb)
> Listen
> > closely to the lower frequency and you'll hear what im talking about.
> Thanks
> > for anyhelp if I don't manage to reply.
> >
> > (Microsoft: Include an option to select your own codec/bitrate/file
type,
> > and I'll back yah some more!)



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