Level meter for sound signals

Measuring and testing – Speed – velocity – or acceleration – Centrifugal weight type

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G01H 314

Patent

active

039916286

ABSTRACT:
A level meter for sound signals capable of indicating a mean value of the input level by deflection of a pointer while indicating a peak value of the input level when it has exceeded a predetermined value by lighting one of a plurality of light indication elements provided on the scale which corresponds to the predetermined value.

REFERENCES:
patent: 3200899 (1965-08-01), Krauss
patent: 3615162 (1971-10-01), Barber
patent: 3848471 (1974-11-01), Hamburg et al.
Frye, Radio-Electronics, "The VU Meter and its Uses," Nov., 1955, pp. 77-80.

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