On 6/17/06, bmearns <bmearns@coe.neu.edu> wrote:

> As far as feasability...I didn't think that would even be an issue. Perhaps
> I mistakingly assumed that an iPod and other portable audio players were
> using something comparable to a dsPIC (comparable in terms of performance).
> I don't believe they use dedicated MP3-decoder IPs because they support
> multiple audio formats, so I can only assume the decoding is done in a
> micro. But again, I may have underestimated the speed of those processors,
> or perhaps they're more finely tuned to that kind of calculation.
> --

Maybe the following links will help.

http://www.eetimes.com/news/semi/showArticle.jhtml?articleID=186701236

IPod Nano (to be switched to Sansumg) uses PoralPlayer SOCs.
http://www.portalplayer.com/products/index.html

IPod Shuffle and many others (like Creative) use SigmaTel SOCs.
http://www.sigmatel.com/

DSPIC Music Player
http://opencircuits.com/Music_Player
http://opencircuits.com/TRAXMOD (links down now)
http://forum.microchip.com/tm.aspx?m=166133

Regards,
Xiaofan
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