Rich wrote:
I use mainly sennheiser mkh-110's, up to 8 channels of them. very low noise
and very high gain. But rf mics can have problems receiving their neighbor
mics and that is seen as this noise problem I am getting.

Cute! What did you have to do about it? Filters at the plugs?
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Today I am building separate power supplies for each of the mics as I need
to rule out the power as the noise conduit.
I hope I don't have to build tuned chokes. I will switch to different mics
before I do that I think. I have tried everything with diodes and caps for
filters.

The project is to perfect this single point surround mic.
The surround mic has a great image. I hope to put it up against the big
names (big $) as soon as the noise is fixed, in a well designed surround
theater.
I call it "the cube"
image at: http://home.comcast.net/~richpeet/Cube1.JPG and
http://home.comcast.net/~richpeet/Cube2.JPG

It is high enough gain that a motorcycle red-lined the dsp at one mile not
line of sight.
If you can preview a 4 channel image I can link four mono files for you and
only ask for an honest opinion re the image as I know about the noise
levels.

Rich

"Scott Dorsey" wrote in message
...
Rich wrote:
I use mainly sennheiser mkh-110's, up to 8 channels of them. very low
noise
and very high gain. But rf mics can have problems receiving their
neighbor
mics and that is seen as this noise problem I am getting.

Cute! What did you have to do about it? Filters at the plugs?
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."

Well, I now know the problem is the maudio 410 is trying to get ground
from the firewire cable, which connects to my laptop chassis, which
somehow connects to the ground. Since the 410 power cable doesn't have
a ground plug this makes sense. Just touching the external portion of
the firewire cable to my connection on the laptop causes the static.

Has anyone used or heard of these before?

http://www.swee****er.com/store/detail/HumX/

This connects to the safety ground, not the audio ground. I'd like to
know how it works. Anyone have an idea?

-emde