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Title:
AUDIO SIGNAL PROCESSING APPARATUS
Document Type and Number:
Japanese Patent JP2015039120
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an audio signal processing apparatus capable of generating a higher harmonic wave while preventing a waveform of an original signal from being changed.SOLUTION: An adder 141 adds a bias component DC to an input signal Sa. The signal to which the bias component is added, is inputted to an exponentiation calculation part 142. The signal is squared by a multiplier 421, an even-ordered higher harmonic wave is generated and level-adjusted by a level adjuster 422. The even-ordered higher harmonic wave is cubed by a multiplier 424 and a multiplier 425, and an odd-ordered higher harmonic wave is generated and level-adjusted by a level adjuster 426. The level-adjusted even-ordered higher harmonic wave, the odd-ordered higher harmonic wave and the signal level-adjusted by a level adjuster 428 are added and an output signal Sb is generated.

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Inventors:
AOKI RYOTARO
TOKUHISA HIDEYUKI
Application Number:
JP2013169487A
Publication Date:
February 26, 2015
Filing Date:
August 19, 2013
Export Citation:
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Assignee:
YAMAHA CORP
International Classes:
H04R3/04; H04R3/00; H04R3/12
Domestic Patent References:
JPH05127672A1993-05-25
JPH05127672A1993-05-25
JP2004101797A2004-04-02
JP2004101797A2004-04-02
Foreign References:
WO2000039786A12000-07-06
WO2000039786A12000-07-06
Attorney, Agent or Firm:
Patent business corporation Kaede Patent Attorneys' Office



 
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