The VU meter is not the only game in town when it comes to measuring audio levels, of course. The peak-program meter (PPM) is common internationally and as the name suggests, measure the audio peaks rather than the average signal like a VU meter. Pro audio engineers and audiophiles debate the relative merits of the two metering methods with an intensity only pro audio engineers and audiophiles can understand, but it’s clear that both meters have their place.
Klanghelm's Heavy Duty version..
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