Rob, - as far as I know, the MKH mic's use much more current than the mic's=
you have tested with the Rolls.
It might very well be that the Rolls start to generate noise when that high=
current is being squeezed out of it.
The MT 24/96 works just fine with a phantom powered EM23, but adds a
terrible noise when connected to a PRO6 handle. Why? It is very difficult
to find the reason. The noise of a DC-chopper lives it's own life, all over=
the recorder, and whether it becomes audible or not is more or less a myste=
ry.
Klas.
At 16:47 2006-09-01, you wrote:
>Scott--
>Assuming L=3DMid and R=3DSide:
>
>1) A mkh30 does have slightly more noise than a mkh 40, but not this
>much usually.
>
>There are three factors to account for: (a) the two mics, (b) the
>rolls (c) the recorder/settings. Do things like swap around the
>inputs on the Rolls. Power the Rolls and mics differently if you can.
>Try the Rolls with other mics if you can. Make sure all the
>settings/inputs are right on the recorder.
>
>2) There is unusual low-end weighting/extra low end emphasis on the EM-32'=
s.
>
>Its early, but your tests so far suggest to me that something is not
>right with the recorder or a setting/setting on it. Swap your
>gear/settings and connections around and see if you can isolate the
>source of the problem. Rob D.
>
>
>
>At 11:55 AM +0000 9/1/06, scottsherk27 wrote:
> >Hi Rob,
> >Thanks for giving this a listen. I am running MKH's through Rolls
> >and into mic in of Sony RH10. The EM23's are going directly into mic
> >in using only PIP. I put new batteries into the Rolls immediately
> >before running the test.
> >
> >I have uploaded an un-normalized or decoded file of the MKH 40/30 and
> >also the un-normalized file of the EM23's both recorded at the 28
> >level. They are at the bottom of the group on the page at
> >
> >http://tinyurl.com/hx9nq
> >
> >One thing that confuses me is that I thought the MKH's were more
> >sensative than the EM23's being rated at 25mV/Pa's as opposed to 10-
> >11.5mV/Pa for the EM23. The un-normalized files argue against this.
> >
> >Thanks,
> >Scott
> >
> >
> >--- In Rob Danielson <>
> >wrote:
> >>
> >> Hi Scott- We'll, something odd is going on. Is just the 40/30 pair
> >> going through through the Rolls and the em-23 running on PIP or are
> >> both running through the PB224? Sure the batteries are fresh? If
> >both
> >> pairs are going through the Rolls, can you upload the M-S 40-30 rec
> >> level "28" files un-decoded and un-normalized? Rob D.
> >>
> >> At 11:07 PM +0000 8/31/06, scottsherk27 wrote:
> >> >I recently began experimenting with a Sennheiser MKH 30-40 M/S rig.
> >> >I've been running this through the Rolls PB224 and then into a Sony
> >> >RH10 Hi-MD. I seem to be experiencing too much high-end noise,
> >> >especially compared to what I'm used to with my pair of Telinga
> >> >EM23's. I've posted some crude test recording on my site. I`ve
> >> >recorded the same clock with both the EM23's and the MKH's with
> >gain
> >> >of 22 and 28 on the RH10. I only normalized the files. I would
> >> >appreciate an assessment of this high-end noise. Here is the page:
> >> >
> >> >http://tinyurl.com/hx9nq
> >> >
> >> >Thanks,
> > > >Scott
> > > >
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email:
website: www.telinga.com
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