At 22:22 2006-12-17, you wrote:
>Hi Klas,
>
>Many thanks for all you are doing to help. I am baffled too, but can
>only go by my ears, my technical knowledge being somewaht limited.
>
>One, thing though, and I might be mistaken, could it be a Phantom
>Power issue/conflict between recorder and mic ? Capicitors in the
>recorder not blocking the voltage ( whatever that means ! )?
The PRO6, especially with the Stereo DATmic, uses quite a lot of the
power current. Some phantom power supplies cannot supply that kind of
high current before they start behaving improperly.
That is the case with MT 24/96, for example, which generates a lot of
high freq. hiss.
Using the power box, this possible error is eliminated.
I forgot that you reside in Europe. Then it is easier to send both
the mic, handle and the recorder here. I can have a look at it the
same day it arrives.
Klas.
>I say this because when I used your 9V Power box ( with 2 XLR's )
>that I was sent by mistake ( not needing it), I could swear that
>this noise was not apparent, or certainly not as bad. With this the
>Phantom power on the FR2 was obviously switched off. It also works
>fine (I think) with a Mini Disc recorder and your 3.5mm 9V power
>box, again no PP. This all suggests something to do with Phantom
>power to me, but I have no idea what.
>
>I am getting a loan of a Tascam Digital 8 track recorder and will
>check it with this (it has 48v Phantom Power).
>
>Might need to get one of your Pro6 Power Boxes with output to two
>XLR jacks ?
>
>
>
>Lindsay
>
>
>
>--- In Klas Strandberg
><> wrote:
> >
> > Hi Lindsay!
> >
> > I guess this is not a topic for the group, but as it started here
> > (surely by mistake) I can as well answer it here.
> >
> > I can't explain it. I tested it with the bench mic amp, with my
>old
> > Tascam, with Zoom H4 and with another home-built amp with phantom
>power.
> > What I could hear was a too high self noise, which disappeared
>when I
> > replaced a leaking capacitor. I thereby hoped that I also
>fixed "your" problem.
> >
> > There is nothing more I can do without also having your FR2, but
>it
> > is quite a lot of paper work to get such a thing through the
>customs
> > without extensive costs.
> >
> > Dan? What do you say? Can you help Lindsay?
> >
> > Klas.
> >
> >
> >
> > At 17:41 2006-12-17, you wrote:
> > >Hi Klas,
> > >
> > >I am afraid the problem is still there and has not been fixed. I
> > >received the mic back from you the other day and in field use
>today
> > >the same excessive noise was there on startup of the Fostex FR2
> > >and "disappeared" after about 10-15 minutes with an audible click,
> > >whereby the self noise was tolerable, and I would presumme normal
> > >for a Telinga.
> > >
> > >It is exactly as before, and as per the sound sample I sent you in
> > >Nov. The noise really is quite bad and is certainly evident on the
> > >recordings unfortunately.
> > >
> > >Help !
> > >
> > >Lindsay
> > >
> > >--- In Klas Strandberg
> > ><telinga@> wrote:
> > > >
> > > > Hi!
> > > >
> > > > Reminded by Richard Kemp that you had to wait a long time for
>your
> > > > Telinga, I had a look at it tonight.
> > > >
> > > > I couldn't hear any "rumble on top of the self noise", as you
> > > > describe it, but I could hear a too high self noise.
> > > > This was caused by a condensor (in the voltage regulator) that
> > >didn't
> > > > polarize as it should.
> > > > I replaced it, and all I can do for now is to hope that I have
> > >fixed it!
> > > > I'll send it tomorrow.
> > > >
> > > > Best wishes,
> > > >
> > > > Klas.
> > > >
> > > >
> > > >
> > > > At 12:35 2006-11-08, you wrote:
> > > > >Many thanks for your help Klas. Do you need the mic as well
>as the
> > > > >handle ?
> > > > >
> > > > >Best wishes,
> > > > >
> > > > >Lindsay
> > > > >
> > > > >
> > > > >--- In Klas Strandberg
> > > > ><telinga@> wrote:
> > > > > >
> > > > > > I think it sounds like a delayed (!!!) base filter
>function,
> > >but
> > > > >I'm
> > > > > > not sure. The base filters are independent, but the error
>is in
> > > > >both
> > > > > > mic's. That makes we wonder.
> > > > > >
> > > > > > Dan's suggestion about a self-healing condensor is also
> > >plausible,
> > > > > > but both base filters are obviously affected and I don't
> > > > >understand
> > > > > > how that happens.
> > > > > >
> > > > > > I don't think it is an interaction between the handle and
> > > > >recorder.
> > > > > > Send the handle here and I can have a look at it asap.
> > > > > >
> > > > > > Klas.
> > > > > >
> > > > > >
> > > > > >
> > > > > > SomethingAt 18:40 2006-11-04, you wrote:
> > > > > > >I have been using a Telinga Pro 6 for a few months with a
> > >Fostex
> > > > >FR2
> > > > > > >and am experiencing a really strange phenomena.
> > > > > > >
> > > > > > >On starting the FR2 from cold and going into standby
>recording
> > > > >there
> > > > > > >is a rumbling noise on top of the self hiss that can be
>heard
> > > > > > >through the headphones. After 2-5 minutes this noise cuts
>out
> > >(
> > > > >with
> > > > > > >a click ) and the self noise is acceptable(?). This
>rumbling
> > >noise
> > > > > > >is recorded on to audio tracks which is not great.
> > > > > > >
> > > > > > >The first time I was aware of this noise I actually
>thought it
> > > > >was a
> > > > > > >generator running in the background at one of my regular
> > >sites -
> > > > > > >that's how bad it is.
> > > > > > >
> > > > > > >I use the FR2 on stereo, 44.1, 16 bit and use phantom
>power
> > >to run
> > > > > > >the Pro6, which is set in the middle position. I use a
> > >Tekkeon "My
> > > > > > >Power Lithium" rechargeable set on 12 volts in to the DC
>of
> > >the
> > > > >FR2,
> > > > > > >but it also makes this noise with x8 AA rechargables in
>the
> > > > >machine
> > > > > > >itself.
> > > > > > >
> > > > > > >I also have a ME67 and this doesn't create or induce this
> > >noise
> > > > > > >which is making me suspect the Pro6 mic / recorder
> > >combination.
> > > > > > >
> > > > > > >However, once the noise cuts, the FR2 can be switched on
>and
> > >off
> > > > > > >with no problems. Seems ridiculous to say it but it is
>like
> > >the
> > > > >mic
> > > > > > >needs to warm up ?!
> > > > > > >
> > > > > > >Has anyone else experienced this and solved it ? Is there
>a
> > > > >problem
> > > > > > >with my mic or my recorder ? What do you think Klas ?
> > > > > > >
> > > > > > >Cheers,
> > > > > > >
> > > > > > >Lindsay
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >"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: telinga@
> > > > > > website: www.telinga.com
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >"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: telinga@
> > > > website: www.telinga.com
> > > >
> > >
> > >
> > >
> > >
> > >"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
> >
>
>
>
>
>"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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