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.
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
>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 ?
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Yahoo! Groups Links
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01