John, thanks for the reference. It gave a good historical perspective.
It would seem the use of dBv (.775 V reference) and dBV (1.0 V
reference) created enough confusion for the pro audio industry to
introduce the new unit dBu. While not an active observer in the pro
audio scene, I would
Dave,
Here's a link which explains some of the dB variations including dBu.
-http://www.music.mcgill.ca/~martin/textbook/electronics/03.html
John Juhasz
Fiber Options
Bohemia, NY
-Original Message-
From: Dave Wilson [SMTP:dwil...@babtps-us.com]
Sent: Thursday, January 20, 2000 4:16
Dave,
I have always seen this used for micro, as in dBuV = decibel microvolts.
It may also stand for decibel units. If so, a unit is most likely 1 volt
rms, a common unit in professional audio. The formula would be 20 X
LOG(input voltage/reference voltage), with LOG referring to LOG 10.
Scott
Dave Wilson wrote:
Has anyone come across this unit before? It's referenced in EN55103-2
(Professional Audio/Video Immunity) for audio frequency common mode immunity
testing.
Hi Dave,
Are you sure it isn't dBvu? If my memory serves me right, the VU is a
volume unit commonly used in
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