On Jun 10, 2013, at 06:35 17, Richard Lamont wrote: > Initially I was reluctant to do this as I'm a stickler for quality and > I'd assumed that when a cut starts as 16-bit PCM and ends as 16-bit PCM, > the less done to it in the middle the better!
In a perfect world, it'd be nice to be able to do this. However, even an exceptionally clean FM airchain can deliver no more than about 65 dB S/N (assuming +/- 75 kHz deviation with no MPX or other subcarriers). In practice, with real-world receivers in the far field, typical performance is a lot less, more like in the 50 dB range or worse. Add in MPX stereo and it gets still worse. Given that reality, the 12 dB of dynamic range lost to headroom when ripping from CD (16 bit PCM, hence approx. 88 dB theoretical dynamic range) to RD is completely buried in the noise floor. What we get for that tradeoff is protection against clipping (*much* more sonically objectionable than quantization noise). Cheers! |-------------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |-------------------------------------------------------------------------| | A room without books is like a body without a soul. | | -- Cicero | |-------------------------------------------------------------------------| _______________________________________________ Rivendell-dev mailing list [email protected] http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
