Method and apparatus for piano tuning and tempering

Details Method and apparatus for piano tuning and tempering Method and apparatus for piano tuning and tempering

1978-12-07

1981-03-03

Hix, L. T.

Music

Accessories

Tuning devices

84DIG18, 324 79R, G01G 702, H03B 2101, G01R 2314

Patent

active

042533740

ABSTRACT:
The invention comprises a method and apparatus for the tuning of a piano and other similar musical instruments to equal temperament. A transducer is operative to receive two notes being struck, one of which is tuned and the other of which is to be tuned. The electrical output signal provided by the transducer is processed by bandpass filtering to isolate a predetermined beat note which is associated with the two notes being struck. The filter output signal is applied to an output transducer such as headphones which provides an audible rendition of essentially only the intended beat note.

REFERENCES:
patent: 2919620 (1960-01-01), Dorf
patent: 3102928 (1963-09-01), Schroeder
patent: 3968430 (1976-07-01), Maas
patent: 3968719 (1976-07-01), Sanderson
patent: 4163408 (1979-08-01), Capano

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