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Subject: Re: FLASH: FLASH MP3 files
From: John Dowdell
Date: Thu, 24 Feb 2000 20:47:33 GMT

At 10:44 AM 2/24/0, Carterspotataol [dot] com wrote:
> Does anyone know the equivalent bit depth of the audio post MP3
> conversion? My guess is something along the line of 4 or 5 bit,
> which is where the noise is coming from (lower bit depth = higher
> noise floor).

There isn't a particular bit-depth. Fraunhofer encoding works different.
Start with a high-quality source, and then choose your transfer rate.

These techniques use perceptual compression. One way to think of them is
like JPEG compression... you'll get better results with areas of smooth
gradation than with many sharp transitions.

Searching the following site with term "audio compression" brings up a
range of related tips and links:
http://www.faqs.org/

jd





John Dowdell, Macromedia Tech Support, San Francisco CA US
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