Title:
音声信号処理装置、音声信号処理方法および音声信号処理プログラム
Document Type and Number:
Japanese Patent JP4591557
Kind Code:
B2
Abstract:
An audio signal processing device includes: a microphone configured to collect noise; an analyzing unit configured to analyze an audio signal collected by the microphone to detect the level and frequency property of the collected audio signal; and a signal processing unit configured to subject an audio signal to be reproduced to signal processing based on the analysis results of the analyzing unit. In one example, the audio signal processing device may include a noise cancel signal forming means configured to form a noise cancel signal from the audio signal collected by the microphone, and an adding means configured to add the noise cancel signal from the noise cancel signal forming means to an output signal from the signal processing means. The signal processing means subjects the audio signal to be reproduced to signal processing while taking the property of the noise cancel signal forming means into consideration.
Inventors:
Kazuatsu Oguri
Kohei Asada
Suzuki Shiro
Itabashi Tetsunori
Hiroki Kasai
Kohei Asada
Suzuki Shiro
Itabashi Tetsunori
Hiroki Kasai
Application Number:
JP2008156190A
Publication Date:
December 01, 2010
Filing Date:
June 16, 2008
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04R3/00; G10K11/178; H04R1/10
Domestic Patent References:
| JP2008005269A | ||||
| JP2008099163A | ||||
| JP2008122729A | ||||
| JP2008124564A | ||||
| JP2006101441A | ||||
| JP2006295669A |
Foreign References:
| WO2006125061A1 | ||||
| WO2007113487A1 |
Attorney, Agent or Firm:
Atsuo Waki
Nobuo Suzuki
Nobuo Suzuki