Apparatus for discriminating an audio signal as an ordinary voca

Music – Instruments – Electrical musical tone generation

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84654, 84DIG9, 381 46, G10H 700

Patent

active

052986748

ABSTRACT:
An apparatus for discriminating a received audio signal as vocal sound or musical sound includes a pre-processing circuit 100 for separating the audio signal into a vocal frequency band signal and a musical frequency band signal, an intermediate decision circuit having a plurality of decision units for producing a plurality of vocal and musical decision signals, each decision unit distinguishing whether vocal or musical frequency band signal includes properties of voice or music, and a final decision circuit 600 for systematically analyzing the vocal and musical decision signals to produce a final decision signal for discriminating the audio signal as the vocal or musical sound.

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