superbonham;688118 Wrote: > ... overlapping posts ... > > If you take a high-definition master recording at 96kHz/24 bit stereo > (~ 4,600 kbit/s) and compare it with a 256 kbit/s mp3 (which you might > consider "industry-standard" these days) this actually holds true (at > least approximately). > > But as already said: a lot of this data can be "omitted" without having > (too much) of an audible effect. mp3 compression is based on (rather > well understood) psycho-acoustic phenomena (e.g. masking just to name > one of them) to reduce the data rate. > > Personally I am - at least for the vast majority of my own music > collection - not able to tell the difference between the CD source and > a mp3 file with 320 kbit/s encoded from this source (using a decent > hifi system - that won't perhaps qualify as "audiophile", though).
agree. And in general the tests reported at hydrogenaudio.org (some quite large scale in terms of participants) are based on transparency via listening (not comparing charts or bitrate, etc.). These are double-blind ABX tests regarding the hypothesis of transparency between things (i.e., can one detect a difference in the source files (e.g., 128 mp3 and lossless) via listening that is not simply due to random selection). -- garym *Location 1:* VB Appliance 6TB (1.10) > LMS 7.7.1 > Transporter, Touch, Boom, Radio w/Battery (all ethernet except Radio) *Location 2:* VB Appliance 3TB (2.0) > LMS 7.7.1 > Touch > Benchmark DAC I, Boom, Radio w/Battery (all ethernet except Radio) *Office:* Win7(64) > LMS 7.7.1 > SqueezePlay Retired: SB3, Duet Receiver Controllers: iPhone (iPeng), iPad (iPengHD & SqueezePad), CONTROLLER, or SqueezePlay 7.7 on Win7(64) laptop Ripping (FLAC) - dbpoweramp, Additional Tagging - mp3tag ------------------------------------------------------------------------ garym's Profile: http://forums.slimdevices.com/member.php?userid=17325 View this thread: http://forums.slimdevices.com/showthread.php?t=92918 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
