Re: 3032vs4022 self-noise, HDP2vsDR680 input noise

["Paul Jacobson" thebrunswicktwitcher]

On 29/05/2010, at 5:13 AM, Rob Danielson wrote:

> Tascam HD-P2 
> and the Tascam DR-680 recorders using the same mics plus a Rode 
> NT1-A. Consistent with Raimund's measurements, the differences are 
> largely if not completely masked by the self-noise of the mics.


Hi Rob,

I know this is beyond your hearing range but there is a very audible electronic 
clicking or "tinkling" in the DR680 clips which is roughly between 12khz and 
12.5khz. I was unable to isolate a specific frequency and needed to use a low q 
on the filter to eliminate the ticking.  It is less apparent with the 4042 but 
very clearly audible in the 3032 clip. This noise is not audible in the HDP2 
clips.

cheers
Paul