Patent
1993-08-13
1995-07-18
MacDonald, Allen R.
84477R, G10L 900, G09B 1502
Patent
active
054349494
ABSTRACT:
A score evaluation display device for an electronic song accompaniment apparatus has an audio signal processing unit to evaluate a user's singing. A sampling processor samples the difference between an input song signal from a microphone and reference song signal, a volume deference detector detects a voltage difference between these two signals, a rhythm difference detector detects the difference in rhythm between these two signals, and an adder sums the outputs of the volume difference detector and the rhythm difference detector, thereby producing a finally evaluated score. Accordingly, a more reliable and accurate evaluation can be performed for a user's singing, based on the difference between the microphone's input song signal and the reference song signal.
REFERENCES:
patent: 4546690 (1985-10-01), Tanaka et al.
patent: 5208413 (1993-05-01), Tsumura et al.
patent: 5287789 (1994-02-01), Zimmerman
patent: 5300723 (1994-04-01), Ito
MacDonald Allen R.
Samsung Electronics Co,. Ltd.
Sartori Michael A.
LandOfFree
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