[Randy Yates[_2_]]

(Scott Dorsey) writes:

Randy Yates wrote:

But there's no reason not to digitize it at 24 bits in the first
place, with storage so cheap now.

No argument there. I'm just saying that if you did, that shouldn't cause
a problem for deemphasis software. I mean, I would hope the (plugin?)
implementer(s) would know the dynamic range requirements of the
algorithm and resample/requantize if necessary.

I was suggesting that there may be benefit to digitizing at 24 bits when
in fact you have far more noise than signal going into the converter. Do
a sharp FIR high-pass at 18 Hz and you still have plenty of bits of signal
left if you are lucky.

So the situation you're describing is something like this: the analog
signal being input to the ADC has a relatively low analog SNR. Correct?

In that case I really don't see why digitizing at a higher depth buys
you anything. The quantization noise (if the quantization is done
"right") should be way below the input noise.
--
Randy Yates
Digital Signal Labs
http://www.digitalsignallabs.com