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Re: mkh20-edirol R4 problem revisited

Subject: Re: mkh20-edirol R4 problem revisited
From: Klas Strandberg <>
Date: Sun, 09 Apr 2006 02:31:00 +0200
Romilly, I never studied neither your set up situation, nor which the other=

mic's were and their characteristics. Unfortunately I don't have your
original mail.

But I recognized the kind of sound that you got from some recordings which=

I have made myself with omnis, indoors. Your recordings didn't sound much
different, just extraordinary crazy.
That doesn't exclude phantom power error.
Perhaps both?

Why not just connect all mic's and try them outdoors? Then they would all
sound about the same.
If not - disconnect the XLR's and measure the voltage.
As the MKH has such a very special function, it might be possible that they=

behave strangely if the phantom power goes too low. Other condensor mic's
would just loose gain and turn noisy.

(Now when I look at googles, I see that the 3032 are small membrane mic's.=

How small?
A big membrane is, of course, much more sensitive to errors caused by
reflections, than a small membrane. But that usually brings down high
frequencies, not low??)

Ears and mic's the same?? no no no.... on top of that, mic's have no
selective brain connected.
I dare say that microphones NEVER pick up what ears + brain do. Ears are
much more sophisticated + compensates much more better for errors than any=

equalizer or filter.

Klas.

  At 01:35 2006-04-09, you wrote:
>Volker, thanks, that's very welcome news as it points pretty clearly
>to some fault in my system (or the way I'm setting it up). Means I can
>just leave it to the technicians at HHB here in London to test and fix.
>
>In response to other suggestions. Rog, I've just reversed the phase in
>one channel with no effect. In any case each channel listened to
>separately sounds the same (bad), so it doesn't seem to be a phase
>conflict problem. (Hope that deals with the suggestion in your second,
>follow-up post.) I don't know what relevance that has to Klas'
>suggestions. Make-up and sweat? Dunno, but if you heard the sweet
>sounds I was getting on that outdoors recording of a thrush and a coot
>splashing around (linked on the MKH page) the sweat etc weren't doing
>much harm! That was with the MKHs on a Portadisc.
>
>Can't really follow Klas' thinking! (1) The MKHs were in exactly the
>same positions as I'd had the 3032s in another session, and the latter
>performed well. (2) Each one of the omni pairs (3032 or MKH) was about
>six feet apart and facing in opposite directions, so the likelihood of
>them picking up waves that would conflict or cancel would have to be
>remote - they were facing different wall/room shapes and sound
>sources. That's pretty apparent in the wave traces. (3) Ears are the
>same (apart from the electric supply!) as mic diaphragms, no? We hear
>phase cancellation just as well. And the "mess"? Can't see how the
>mkhs should get confused any more than ears or the 3032s. Following
>this argument music is such a riotous mess it should confuse any
>multi-mic setup.
>
>Klas, let me check that I don't simply have a faulty R4, or it's
>something asinine I've done, before you worry about your next Telinga
>design!! I'm not technically on a level with many of you here. All I
>can plead is I've never encountered this problem before. And yes, I've
>been using a mix of directional (TLMs, NT1As) and omni (MKH, 3032).
>IMHO the omni 3032s worked famously in this "studio" environment they
>aren't supposed to work in.
>
>Rob, finally. I haven't got preamps, no. It'd be useful if I had, but
>this is where I'll hand the R4 over gratefully to the distributors
>(HHB) to check it. Goodness knows, they may have read all about the
>damn problem here!
>
>Thanks to all for your help. It would be really good to hear from
>someone who can confirm Volker's info as that would just about settle
>the matter once and for all.
>
>romillyh
>
>
>--- In  Volker Widmann <>
>wrote:
> >
> > Hi Romillyh,
> >
> > I have both an Edirol R-4 and two Sennheiser MKH20 and have never had
> > any of the problems you describe.
> >
> > I also have a pair of Audio Technica AT3032 which sound good, but the
> > MKH20 are far superior.
> >
> > I do not have any A-B comparison samples, but I can assure you that I
> > can not confirm your experiences.
> >
> > I have never had them sound like old tin boxes :-)
> >
> >
> > Volker
>
>
>
>
>
>"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: 
        =20




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