[vorbis] resampling to 48 kHz

Maik Merten maikmerten at gmx.net
Fri Apr 2 05:05:24 PST 2004



David Bachner wrote:
> --- Maik Merten <maikmerten at gmx.net> wrote:
>>You don´t have one of those cards
>>have you?
> 
> 
> Yes, I do! Are you saying that the distortions of the
> higher frequencies in ogg files encoded from 44.1 kHz
> wav files are because of the soundcard. I find the
> same distortions on both my desktop machine (with the
> SB live card) and my laptop (with "Crystal SoundFusion
> CS4281 WDM audio"). Resampling the wav's from 44.1 to
> 48 kHz before encoding seems to be the only way to get
> rid of the distortions.

The soundcard _may_ be the source of your problems. I recommend:

- do a 44.1 kHz encoding
- decode it (make a Wav file)
- burn it on Audio CD
- check this CD on a standalone CD player.

It the sound is not distorted when playing from CD something is wrong 
with your computer.

When playing the original file (the source you make your Ogg files from) 
on your computer: Are there any distortions? Is your sorce already 
compressed lossy (MP3, WMA, AAC etc)?

Maik
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