moley6knipe;435350 Wrote: > Any lossy format will lose you bits. . .
I'm not sure that this is uniformly true. As I understand it, the compression algorithms identify adjacent sample points that are the same, or that are sufficiently similar given the quality target, and recodes them as the same but without individually describing each point. The lower the quality setting, the broader the definition of "sufficiently similar". If this is essentially correct, then converting from one lossy format to another may not result in significant additional data loss. If the two formats have similar quality settings (bit-rate settings), the conversion algorithm may not identify many opportunities for further compression, since those opportunities have already been identified and implemented. I'd say that the best choice for a conversion setting (AAC to MP3, for instance) would be to choose an MP3 quality setting just above that used to create the AAC file in the first place. My knowledge here is pretty shaky, and I'm assuming parallels with image compression. So I might well be wrong. R. -- RonM ------------------------------------------------------------------------ RonM's Profile: http://forums.slimdevices.com/member.php?userid=17029 View this thread: http://forums.slimdevices.com/showthread.php?t=64894 _______________________________________________ ripping mailing list ripping@lists.slimdevices.com http://lists.slimdevices.com/mailman/listinfo/ripping
