[Deputy Dumbya Dawg[_10_]]

Does your computer run on 60 hz power or 50 Hz power?
Do you mean HUM or BuZZ rather than rumble?

Rumble to most of us is the sound that came from our
turntables when spinning vinyl records. Buzz and Hum come from
the power lines etc.


peace
dawg

"D" wrote in message
ups.com...
Hello!
A background (about 50hz) rumble appears in a sound from
microphone.
Windows XP SP2.
I tried two headsets (which surely are good). The rumble
decreases if
I touch the computer case. I checked the inside of the case,
did not
find any improper contacts. The sound card is Creative sound
blaster
live ct4830. I tried the latest Microsoft and Creative
drivers. The
Creative driver does not output sound from microphone to
speakers at
the same time, but only from a recording from the
microphone. How to
prevent the rumble?
Best regards,
Dima