cliveb;377821 Wrote: > LPs have limited information content. Even the finest LP, pressed on > heavy vinyl, is lucky to achieve a S/N ratio of 70dB, and that's on a > good day with a following wind. That equates to less than 12 bits of > resolution. 16 bit recording is more than enough. That said, if you > plan to do massive amounts of post-recording processing (eg. lots of > EQ/filtering/noise reduction/etc), then the rounding errors can build > up. But even then, you'd have to do dozens of these kind of DSP > operations before the quantisation noise built up enough that it would > fail to be masked by the vinyl surface noise. > > As for sample rates: although some sort of signal above 22kHz does > sometimes come off a vinyl LP, it's overwhelmingly noise and > distortion. I can't see any point in going above 44.1 or 48kHz. > This is the interesting question! (I do not plan to do fancy post-processing, by the way.)
I mentioned the point about the noise floor of (good quality) vinyl in the post I just made in reply to Eric's comments. I came across some interesting analysis of this here: http://www.audioholics.com/education/audio-formats-technology/dynamic-comparison-of-lps-vs-cds-part-4/dynamic-comparison-of-lps-vs-cds-part-4-page-2 One of the interesting points in this article (comparing the LP and CD of the same recording): > ... the LP recording has a lower noise floor than the CD recording for > the majority of the spectrum (frequencies above 2kHz ). I appreciate that a noise floor of -90dB is not going to be consistently achievable in practice, but I'd be curious to know what word length would be necessary to take advantage of that sort of level? (But I'm sure that, in reality, what you say is entirely correct.) -- Vereina ------------------------------------------------------------------------ Vereina's Profile: http://forums.slimdevices.com/member.php?userid=22342 View this thread: http://forums.slimdevices.com/showthread.php?t=57431 _______________________________________________ ripping mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/ripping
