Thanks for the information everyone, it was very helpful.
Bruce Rideout
--- In "Raimund" <> wrot=
e:
>
> < While the noise floor is established by the noisiest element, in this c=
ase the mics, & thus can't be improved, he would get more overall gain, whi=
ch I believe is what he's seeking. While one can always add gain in post, t=
here's something to be said for staying away from the bottom few bits in an=
inexpensive ADC & getting the majority of the signal to hit the upper 40 -=
50 dB of the available dynamic range.>
>
> Well, this would be an issue if the maximum gain of the recorder was not =
sufficient. However, at its maximum gain setting, the input clipping level =
of the Marantz PMD661 is -52 dBu and the A-weighted noise floor of the Senn=
heiser K6/ME66 is -108 dBu, which means that a completely silent recording =
would already exhibit a signal level of -56 dBFS. Assuming a poor A/D conve=
rter dynamic range of 90 dB, there would still be a large "safety" margin o=
f 36 dB.
>
> So, if one is willing to invest additional money, my advice would be to u=
pgrade the Senheiser K6/ME6x microphones to the MKH series for instance.
>
> Regards,
> Raimund
>
|