rgro;688112 Wrote: > There was an article on the CNN website the other day about Neil Young > and his quest for hi-def music re. Apple. > > http://www.cnn.com/2012/01/31/tech/web/neil-young-apple-high-def-music/index.html > > According to the article (and I have no verification of this), > "Industry-standard MP3 files have only about 5% of all the sounds that > were contained in the original recording". That's a pretty amazing > number----a LOT of compression----and we know that, in addition, > there's some data loss going on.
... 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). -- superbonham ------------------------------------------------------------------------ superbonham's Profile: http://forums.slimdevices.com/member.php?userid=22540 View this thread: http://forums.slimdevices.com/showthread.php?t=92918 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/audiophiles
