Dynamic equalizer circuits having a light dependent cell for producing a relatively constant apparent loudness effect

作者: Mercer Kent Elliott

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参考文章(6)
Michael H Estkowski, Tone compensated loudness control ,(1954)
Carl W Claras, Wickstrom Theodore, Compensated tone and volume control system ,(1951)
Charles T Jacobs, Volume-control circuits ,(1932)
George H Stevenson, Volume-control circuits ,(1926)