Title:
AUDIO SIGNAL PROCESSOR
Document Type and Number:
WIPO Patent Application WO/2018/211806
Kind Code:
A1
Abstract:
Provided is an audio signal processor that detects various kinds of noise with high accuracy and that does not cut off an audio signal even when noise is detected while outputting the audio signal. An audio signal processor according to the present invention is characterized by being created by having an input unit 10, an input signal discrimination unit 20 for discriminating whether there is an input signal from the input unit, a noise detection unit 30 for detecting noise included in the input signal from the input unit, an output unit 80 for outputting the input signal as an output signal, an output switching unit 52 for switching between an output state in which the output signal is outputted from the output unit and a non-output state in which the output signal is not outputted from the output unit, and a control unit 60 for controlling the switching of the output switching unit, the switching control by the control unit including first control for controlling switching on the basis of a discrimination result r1 of the input signal discrimination unit and a detection result r2 of the noise detection unit and second control for controlling switching on the basis of the discrimination result of the input signal discrimination unit, the first control and the second control being selected on the basis of the state of the output switching unit.
Inventors:
KIKUHARA YASUHITO (JP)
AIKAWA TORU (JP)
JITSUKATA YURI (JP)
AIKAWA TORU (JP)
JITSUKATA YURI (JP)
Application Number:
PCT/JP2018/010328
Publication Date:
November 22, 2018
Filing Date:
March 15, 2018
Export Citation:
Assignee:
AUDIO TECHNICA KK (JP)
International Classes:
H04R3/00; G10L25/84
Foreign References:
| JP2014053890A | 2014-03-20 | |||
| US20080279366A1 | 2008-11-13 | |||
| US20080167868A1 | 2008-07-10 | |||
| JPH0744996A | 1995-02-14 | |||
| JP2008015481A | 2008-01-24 | |||
| JPH0683391A | 1994-03-25 |
Other References:
See also references of EP 3627853A4
Attorney, Agent or Firm:
NISHIMURA Keiichi (JP)
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