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Posted by Technobarbarian on 12/16/05 00:30
"ern" <erniedude@gmail.com> wrote in message
news:1134690954.287781.81010@g47g2000cwa.googlegroups.com...
> Thanks for your interest. This is for a project at school. I have a
> verstaile mp3 player (one which I can adjust various signals / input /
> firmware). I want to have a test which will yield useful results
> regarding the effects of different combinations of input / criteria
> from the player. The approach right now is:
>
> 1. Use "FileX" mp3 and play it on the player under "normal"
> conditions.
> 2. Record the output onto a host program in Windows.
> 3. Use "FileX" mp3 and play it on the player under "a wide variety of
> input combinations" conditions.
> 4. Record the output onto a host program in Windows.
> 5. Compare both files and figure out which series of input (or other
> criteria) CAUSED the audio imperfection.
Depending on the variables your looking at it's likely that your sound
card will be the biggest factor. My understanding is that the analog to
digital section of most sound cards isn't all that hot. When I started
moving vinyl records to digital I got a USB preamp so I could work around my
sound card. Unless you're planning on being an audio engineer or a
programmer I'd look for something smaller to tackle.
TB
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