Sound system control

Details Sound system control Sound system control

H - Electricity

04

R

179/39

H04R 3/04 (2006.01) H03G 5/02 (2006.01) H03G 5/04 (2006.01)

Patent

CA 1127544

AA BOS P44 TVS/rc 2/17/78 SOUND SYSTEM CONTROL ABSTRACT OF THE DISCLOSURE A parametric audio equalizer has linear frequency response controls for bass, middle and treble frequency ranges arranged in a line according to the frequency ranges, and linear ampli- tude controls arranged perpendicularly to the corresponding frequency response selection controls, with a bandwidth selector for the middle range located below the middle range amplitude control. Simple graphic indicia of frequency responses appear near the corresponding controls. A summing circuit combines the input signal with signals on + and - inputs coupled to a variable Q and frequency bandpass filter.

330639

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