An analog VU (volume unit) meter is a splendid moving-coil measuring instrument. It is a passive electromechanical device displaying a representation of the signal level in an audio equipment. Even ...

The circuit was designed based on the operation of Siemens UAA180 as it functions as a LED driver for light band displays for measuring the level of audio signals. Volume Unit (VU) – an entity equal ...

It is roughly the average signal level though not precisely. A VU meter is not recommended as the sole metering method for digital systems - it is too slow to catch transients which may overload the ...