Peak-Reading VU Meters

Peak reading meters, popular in Europe for years, are just now coming into greater favor in America, and for good reason. The main purpose for having a VU meter is obviously to monitor signal levels going to a tape recorder, reverb unit, or some other level-sensitive device, to help optimize the signal to noise ratio of the audio sent to the device.
Peak-Reading VU Meters - schematic

You may be thinking that since VU stands for Volume Units, the real purpose of a VU meter is to indicate how loud something sounds. I won`t dispute that, but to really do the job correctly, you would first need to measure the true RMS level of the pr

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