Why is WMA so bad?
Reply #50 – 2005-11-04 21:49:21
WMA has indeed evolved, albeit not with the flurry of development taking place on LAME, for example. I spoke about my codec preferences before, and I'd add some more to that now. The following is my experience with codecs in general. Emphasis on the "my" part. I'm not saying this is the best or only way, though it's the way I'd recommend since it works for me: AAC: Very high quality at 128 kbps for rock music. Generally not so good with bass heavy genres like rap - audio sounds muddy and the bass reproduction is atrocious. Quality is uniformly excellent for all genres at high bitrates. The main reason I don't use AAC is that few DAPs besides the iPod support it, and my current DAP doesn't support it at all. MP3: High frequency sounds are terrible at 128 kbps with any encoder. Heavy guitar sounds like noise. Bass is barely passable. As far as I'm concerned, the lower limit of MP3 quality is 160 kbps for any genre, although most songs need at least 192 kbps to sound good. VBR has improved this situation somewhat, but not enough to warrant me changing my personal rules. MP3 does shine at higher bitrates, but I find that in general the codec seems to have a problem with noise/distortion creeping in on the high frequencies, especially with rock songs. Except for the -insane encoding option, heavy guitar usually sounds excessively harsh and I almost always have to kick the treble down a notch to compensate. Since heavy rock is my favorite genre, while I'm happy with MP3 for files I didn't encode myself, it's not my pick for my own ripping purposes. WMA 9.1: Nearly as good as AAC at low bitrate rock music. Absolutely fantastic at 128 kbps for rap and bass heavy tracks. Very accurate and distortion-free reproduction at higher bitrates with a very clean sound. The Q98 VBR setting is transparent as they come, by my ears. Hence my choice of WMA for personal ripping. OGG: Decent. Haven't heard enough OGG tracks to form a fair opinion. FLAC: Sounds as if you're in the studio. VERY GOOD. Unfortunately not very compatible with my current software/hardware/media ecosystem. MPC: Heard a CD encoded in it. Extremely impressive. Not personally implemented for the same reason as FLAC. WAV: Perfect, of course. Just too large.