why isn't wavpack more popular?
Reply #65 – 2004-01-09 07:53:53
Hello David, and thanks for your positive comments. On my Duron 800, optimFROG DualStream --quality 3 --ans is really fast compared to wavepack -q (it's faster fast than Vorbis, or Lame preset abr/cbr). In comparison, wv4 -q is painfull (I havn't checked speed, but I can remember that I was bored). I have compared average bitrate with 20 classical tracks (from 20 different discs), for 2 hours of music. Here are results : WVq ofsQ3 mpc10 GT3q9 AACTr track 01 : 367 345 349 330 +324+ track 02 : 328 346 355 319 292 track 03 : 353 339 388 334 312 track 04 : 316 343 -313- 254 -265- track 05 : 345 +360+ 320 279 306 track 06 : 336 -304- 344 277 289 track 07 :-304- 327 365 321 289 track 08 :+453+ +360+ 331 286 303 track 09 : 324 344 328 288 284 track 10 : 348 336 374 304 295 track 11 : 354 352 334 297 308 track 12 : 329 335 +409+ +372+ 290 track 13 : 322 353 341 305 298 track 14 : 326 343 347 345 310 Dixit : 312 348 322 298 310 Wagner : 332 341 340 296 308 Bayle :+443+ 350 320 +353+ +324+ Beethoven: 357 350 355 -284- 300 Rinaldo : 352 351 330 298 315 Requiem : 326 342 -314- -284- 311 --------------- 1h'56'55" 7015 sec wavpack -q.................. 289 Mo (303 832 170 octets) ~337 kbps DualStream -q 3 --ans....... 287 Mo (301 479 022 octets) ~335 kbps musepack -q10............... 289 Mo (303 764 860 octets) ~337 kbps vorbis GT3b1 q9............. 250 Mo (262 740 196 octets) ~292 kbps AAC Nero ::transcoding::.... 253 Mo (265 975 691 octets) ~295 kbps 14 first tracks are extracted from an anthology (14 different CD, all stereo with one old/noisy piano track [tr#5]). Track#8 is a two-hand piano, and I can't explain the blow for WV4 (453 kbps - OptimFROG lossless max is 436 kbps). "Bayle" is electronic music, with micro-impulse, and bitrate explosion is easy to understand. As you can see, for my purpose (I have only tried classical), both hybrid encoders are close to 335 kbps (with a small advantage for DualStream), and DualStream is much faster and really usable. EDIT: I can test downix this wek-end, but probably not post results before some days. EDIT2 : just a precision to avoid confusion, wv4 -qis really good, and I can hear noise on some samples only. The organ sample is the most annoying, because noise level is different for each note (and particulary audible for one - that's why I'm tempted to consider it as a problem sample)