P Floding;179126 Wrote: > It's pointless to compare one lossless bitrate to another as they might > just be equally bad. (Or, at least, if you can't hear a difference > between them, it proves nothing about higher bitrates or lossless.) I > had no problem at all hearing a difference between 224kbit AAC and > 320kbit AAC, and lossless. All this on my iPod nano. This was with > piano and symphony orchestra (some Mozart).
Try it blind. It will take you less time than writing that post did. And I'm not saying you won't be able to hear a difference - you might - but it's amazing how afraid people seem to be that they might not. It's not as if someone's going to come and take away your audiophile credentials if you can't... > > My point was that there is something missing in the reasoning if one > claims that lossy compression can be indistinguishable, but fail to > tell at what bitrate, and with what encoder/decoder. > > Oh, and even if you manage to establish this, it is not universally > applicable, and there is STILL the problem of what happens if the > bitrate is reduced, say, one bit per second until you do start to hear > a difference. There is NO hard limit forthcoming for "perfect" lossy > compression. Sorry, I don't understand what you're saying here. I *did* say at what rate I did my tests at - at 128 MP3 (I think LAME CBR) I could distinguish immediately 100% of the time, 192 VBR MP3 was much harder - I could tell on at least one track, but it was difficult. Again, I suspect this was limited by the quality of the equipment I was using, but my guess - and it's a guess - is distinguishing 320 MP3 from lossless would be very difficult or impossible even on a much better system. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=32576 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
