Thanks Rob -
I've redone the test and its now on as D50_new_test.wav.
I've removed the old.
This is in 4 sec segments as follows:
0-4 Secs Art D50 at 10 (max) plus 10 db
4-8 Secs Mix @ mid, D50 @ 5 (ie mid gain), mic in, no adj to gain
8-12 Secs Mix @ full, D50 @ 2 mic in plus 10 db
12-16 sec Mix @ full, D50 @ 4 line in plus 5 db
16-20 Sec Built in mics, D50 @ 10 (max)
Yes I think the rumble was previously lost in a filter which was
probably switched on - the recorder was new and I was enthusuathically
playing .....& the writing is a tad small for those of use who should
use glasses more often.
The recorder askes if the PIP should be on when a mic is plugged in -
so I would have said no.
Hope this makes things clearer.
The lower frequency noise in from the built in mics again stands out.
Andrew
--- In Rob Danielson <> wrote:
>
> At 12:03 PM +0000 2/6/09, Andrew Carter wrote:
> >Justin - I hope this proves useful for you:
> >
> >I bought a Sony D50 .. I carried out a few tests and I have put the
> >result on the group files
> >area as D50_test.wav .
>
> http://tinyurl.com/c8l8x3
>
>
> >The comparison recording is in 3 second segments:
> >
> >(1) The built-in mics
> >
> >(2) The built-in mics (with the low-cut filter on?)
> >
> >(3) One Rode NT2000 mic into the 1/8" mic input of the D50 (How do
> >you power the NT2000's with a Rolls or Art Phantom)?
> >
> >(4) Rode -> Mix Pre -> Line Input of the D50. unknown setting
variable A
> >
> >(5) Rode -> Mix Pre -> Line Input of the D50. unknown setting
variable B
> >
> >(6) Rode -> Mix Pre -> Line Input of the D50. unknown setting
variable C
> >
> >(7) Rode -> Mix Pre -> Line Input of the Hi-MD. Unknown settings.
> >Not sure where the rumble came from.
> >
> >
>
> Hi Andrew--
> Sorry to edit your report. Please correct me if I have the test
> variables above stated wrong.
>
> From what I can tell, there should be very little noise change
> between test sections 3 and 4 assuming you used a compatible phantom
> power supply. If you want to contact me, off-list, we'll try to get
> to the bottom of the results you got. As for the "rumble" in 7 that
> is not in 6, it might be that you had a "Hi Pass" filter on the Mix
> Pre turned "On" in 6 and off for 7. Rob D.
>
> >
> >
> >Andrew
> >
>
>
> --
>
>
>
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