Someone with more of a background in signals than I have can verify this, but I suppose the correct measure of the information capacity of an LP is given by Shannon-Hartley:
http://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theorem#Statement_of_the_theorem If we (generously) take the bandwidth to be 30kHz, we just need to know the signal/noise for an LP to compute the capacity. Now we know that for a CD, the capacity is 44,100*16*2 b/s = 1.4 Mb/s, so to match that an LP would need a signal/noise ratio of about 10^14 (140 dB), which is totally unrealistic. If instead we take a S/N of a million (60 dB), we get a capacity of .6 Mb/s, or a bit less than half of CD capacity. And that's the theoretical best possible capacity given a bandwidth of 30kHz and 60 dB of S/N, both of which are pretty generous assumptions. So it seems that, at least at the level of theoretical information capacity, vinyl is considerably worse than CD - which really shouldn't be a surprise. -- opaqueice ------------------------------------------------------------------------ opaqueice's Profile: http://forums.slimdevices.com/member.php?userid=4234 View this thread: http://forums.slimdevices.com/showthread.php?t=34379 _______________________________________________ audiophiles mailing list [EMAIL PROTECTED] http://lists.slimdevices.com/lists/listinfo/audiophiles
