>> I'm also ignoring how the recording level is adjusted, analog before
>> the A/D conversion or digitally after. Another topic.
>
> You mean digital mics and digital pre and post mixing?
No, I mean recorders where the record level is a digital attenuator between=
the converters and the recorded file. I think the Zoom H2 is an example of=
this. It has a 3-position sensitivity switch, low-medium-high, which is th=
e analog preamp gain, and a digital record level adjustment using the back =
and forward buttons. This could either be a digital attenuator of the analo=
g signal before the converters, or an attenuator of the digital signal afte=
r conversion. I suspect it's the latter. If someone knows please speak up.
An attenuator after the converter just throws away good bits. It can't prev=
ent converter overload or improve the signal-to-noise. It's only useful for=
getting a desired level in the recorded file--but if the recordings are go=
ing through post-production, that's a better place to adjust levels to a de=
sired target.
-Dan
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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