@freqmax I guess that page still existed about 11 years ago. Nice thread bump 
Well I was looking for cards that used a DSP for mp3 decoding to figure out what capacity that would require. And in the process I succeeded to re-locate the page and thought I just drop a notice to help the next person.
All I found where DSP for sound effects and ASIC for direct mp3 decode which doesn't tell anything about DSP based mp3 decoding demands nor ARM based.