13 Jun
2010
13 Jun
'10
12:29 p.m.
On 06/08/2010 12:10 AM, fons(a)kokkinizita.net wrote:
quantisation noise, making the latter irrelevant. If
your A/D
converter is 24 bit, then analog noise will always dominate,
so again quantisation noise is irrelevant.
IMO, the important part is that practically none of the modern
converters, especially "24-bit" (or more) ones do the conversion in the
presentation they express towards the outside world. That is the actual
converter is not PCM nor has 24-bit resolution.
Quite typical cheap converter is 2-bit 128fs SDM using pretty hefty
noise shaping...
Using PCM in general for digital signal representation is mostly just a
convenience causing unnecessary extra trouble elsewhere.