Title:
音響信号処理装置および音響信号処理方法
Document Type and Number:
Japanese Patent JP5898534
Kind Code:
B2
Abstract:
Provided is an acoustic signal processing device for producing an output sound meeting listener's preferences by adjusting attack sound, reverberation, and noise component. The device includes: an FFT section for transforming an input audio signal from a time-domain to a frequency-domain to calculate a frequency spectrum signal and for generating a first amplitude spectrum signal and a phase spectrum signal; an attack component controller (10) for controlling an attack component of the first amplitude spectrum signal to generate a second amplitude spectrum signal; a reverberation component controller (20) for controlling a reverberation component of the first amplitude spectrum signal to generate a third amplitude spectrum signal; a first adding section (40) for synthesizing the first amplitude spectrum signal, the second amplitude spectrum signal, and the third amplitude spectrum signal to generate a fourth amplitude spectrum signal; and an IFFT section for generating an audio signal transformed from a frequency domain to a time domain based on the fourth amplitude spectrum signal and the phase spectrum signal generated by the FFT section.
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Inventors:
Takeshi Hashimoto
Tetsuo Watanabe
Tetsuo Watanabe
Application Number:
JP2012054560A
Publication Date:
April 06, 2016
Filing Date:
March 12, 2012
Export Citation:
Assignee:
Clarion Co., Ltd.
International Classes:
G10H1/12
Domestic Patent References:
| JP2012002858A | ||||
| JP2003005799A |
Foreign References:
| WO2004013840A1 |
Attorney, Agent or Firm:
Togen Motoki