128k (give or take for AC3) lossy files:a52_stereo_192.ac3 17.29MHzmpc_128.mpc 18.01MHzwma_128.wma 19.26MHzvorbis_128.ogg 20.16MHznero_128.m4a 24.26MHzlame_128.mp3 26.35MHz
Lossless Formatsflac_5.flac 7.07MHzflac_8.flac 7.67MHzwv_fastx3.wv 24.11MHzwv_normx4.wv 28.69MHztrue_audio.tta 36.62MHzape_c1000.ape 40.66MHzwv_high.wv 45.07MHzape_c2000.ape 57.69MHzape_c3000.ape 86.34MHzape_c4000.ape 221.24MHz
WMA uses the most complicated MDCT scheme of the codecs, ...
Thanks a lot for this interesting comparison, saratoga! One question:Quote from: saratoga on 10 July, 2010, 07:03:00 PMWMA uses the most complicated MDCT scheme of the codecs, ...Can you elaborate, please? What does WMA do MDCT-wise that the other codecs don't?
Wow, that's blown all my preconceptions out of the water!!I've been using Lame V5 on my clip+ (rockboxed), because I thought it maximised battery life. Now I'm ready to chuck that in and move to ogg. I much prefer the artifacts introduced by ogg at low bitrate than those created by mp3.
Correct me if I'm wrong, but AFAIK rockbox will run in boosted mode (240Mhz) on the Clip+ anyway, because changing clock speed introduced all sorts of crashes. So for now it shouldn't make any difference which codec you use...
I did read about these problems, but I assumed they had been fixed because people are now getting 15+ hours out of their clip+ (more than the original firmware). However, I never read that this actually had been fixed... I'll look into it.
128k (give or take for AC3) lossy files:wma_128.wma 16.37MHza52_stereo_192.ac3 17.29MHzmpc_128.mpc 18.01MHzvorbis_128.ogg 20.16MHzwmapro_141k.wma 22.13MHznero_128.m4a 22.35MHzlame_128.mp3 26.35MHz