Karaoke amplifier with variably settable range of parameter to c

Details Karaoke amplifier with variably settable range of parameter to c Karaoke amplifier with variably settable range of parameter to c

1996-10-21

2000-05-30

Cheng, Joe H.

Education and demonstration

Cathode ray screen display and audio means

434307R, 434308, 84610, 84631, 381 63, G09B 500, G10H 110, G10H 136

Patent

active

060684895

ABSTRACT:
A karaoke amplifier is constructed for amplifying an audio signal to sound a karaoke performance while processing the audio signal according to a value of a control parameter to acoustically control the karaoke performance. An analog operating member is manually operable to set an initial analog value of the control parameter. An analog/digital converter converts the initial analog value into a corresponding initial digital value. A receiver receives correction data from an external data source. A memory memorizes the received correction data. A calculator arithmetically treats the initial digital value according to the correction data retrieved from the memory to calculate a corrected value of the control parameter. A signal processor processes the audio signal according to the corrected value of the control parameter and amplifies the processed audio signal to sound the karaoke performance which is acoustically modified according to the corrected value of the control parameter.

REFERENCES:
patent: 5557056 (1996-09-01), Hong et al.
patent: 5567162 (1996-10-01), Park
patent: 5663516 (1997-09-01), Kawashima
patent: 5719346 (1998-02-01), Yoshida et al.
patent: 5732142 (1998-03-01), Nagata et al.
patent: 5739452 (1998-04-01), Nagata
patent: 5741992 (1998-04-01), Nagata
patent: 5753845 (1998-05-01), Nagata et al.
patent: 5773744 (1998-06-01), Nagata

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