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Summary: [Nature Recordists] Re: EIN values and bits and peaks

Subject: Summary: [Nature Recordists] Re: EIN values and bits and peaks
From: "Raimund" animalsounds
Date: Wed Dec 12, 2012 2:14 am ((PST))
> I find this thread very interesting and ... confusing.
>
> Can someone, with better understanding of digital electronic's, make
> a summary??
>
> 1/ For example: Is the remaining noise that Raimund measures, and
> which limits the EIN of LS10 to 113dBu, (for example) - a noise
> produced by it's digital processing?
> Which means: Would the result be the same with a external A/D
> converter connected to SPDiff?


Klas, the EIN of the LS10 at its maximum gain setting is still -122 dBu(A) =
or -121 dBu(A) at SENSE LOW 24 bit.

The value of -113 dBu(A) only applies to an unappropriate setting (SENSE LO=
W at 16 bit resolution). This poor value is caused simply by the trucation =
of the original 24 bit samples provoded by the AD converter to 16 bits. But=
 please do not generalize this particucar issue for other recorders. This a=
ll depends on the specific details of a recorder (gain steps and quality of=
 the analog of the recoprder).

Unfortunately, such things can get quite complicated... Maybe I should just=
 remove the number of -113 from my list?

Regards,
Raimund












"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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