foxx wrote: > Something I came across when I subscibed to WiMP: > The difference between their 256 kB MP3 files and their lossless FLAC > files is VERY evident. > > This is quite contrary to my my previous experiences, when I converted a > 96/24 Flac file down to 44.1/16 FLAC, 320 kB MP3 and 128 kB MP3. Only > with the 128kB MP3 I started to hear a deterioration in SQ. All the > others were just the same to me. > > Instances like the WiMP case are certainly food for those promoting > higher resolution quality - which is fine as long as it doesn't go > beyond the theoretically possible audible, which is CD quality. > > I'am convinced that WiMP is doing this deliberately in order tho promote > their higher quality streaming subscription.
Maybe similar with spotify premium , but not soo evident ,just a slight diff ( unconfirmed ) , but they use ogg not mp3. But I think they are cheaping out of CPU cycles and use less expensive options in these lossy formats , using the best psychoacoustic models use much more CPU . Even in LAME you can turn off " expensive " parts , so bitrate is not the whole story. I think the have the music lossles in many cases and do on the fly conversion to different rates . Or have done batch conversions in the past with sub optimal encoding . Don't forget that all mp3 encoders are not equal some are really bad . And don't forget that the mp3 decoder in a squeezebox is slightly compromised , you should decode with lame at the server for a fair comparison ,the mp3 decoding at the squeezebox itself is not always transparent not even at 320 Kbps . ( there is a bug report for it, explaining the lack of floating piont math ) -------------------------------------------------------------------- Main hifi: Touch + CIA PS +MeridianG68J MeridianHD621 MeridianG98DH 2 x MeridianDSP5200 MeridianDSP5200HC 2 xMeridianDSP3100 +Rel Stadium 3 sub. Bedroom/Office: Boom Kitchen: Touch + powered Fostex PM0.4 Misc use: Radio (with battery) iPad1 with iPengHD & SqueezePad (in storage SB3, reciever ,controller ) server HP proliant micro server N36L with ClearOS Linux http://people.xiph.org/~xiphmont/demo/neil-young.html ------------------------------------------------------------------------ Mnyb's Profile: http://forums.slimdevices.com/member.php?userid=4143 View this thread: http://forums.slimdevices.com/showthread.php?t=101386 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
