TWI413112B - - Google Patents

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Publication number
TWI413112B
TWI413112B TW99129997A TW99129997A TWI413112B TW I413112 B TWI413112 B TW I413112B TW 99129997 A TW99129997 A TW 99129997A TW 99129997 A TW99129997 A TW 99129997A TW I413112 B TWI413112 B TW I413112B
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TW
Taiwan
Prior art keywords
signal
average power
voice
audio signal
noise
Prior art date
Application number
TW99129997A
Other versions
TW201212008A (en
Original Assignee
Byd Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Byd Co Ltd filed Critical Byd Co Ltd
Priority to TW99129997A priority Critical patent/TWI413112B/zh
Publication of TW201212008A publication Critical patent/TW201212008A/en
Application granted granted Critical
Publication of TWI413112B publication Critical patent/TWI413112B/zh

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Abstract

The present invention is suitable for the technical field of voice communication, which provides a method and device for eliminating background noise of voice (1). The method includes the following steps: performing an effective value detection on the received audio signal, so as to obtain the output signal that reflects the average power of the audio signal; comparing the output signal that reflects the average power of the audio signal with a first threshold value, so as to generate a noise elimination control signal, wherein the first threshold value is a critical value for the average power of the voice signal and the average power of the noise signal; and performing a noise signal elimination process on the audio signal and performing a magnification process on the voice signal under the control of the noise elimination control signal. By converting the amplitude change of the audio signal into the output signal that reflects the average power change of the audio signal, the embodiment of the present invention is able to achieve the purpose of eliminating background noise of voice under the control of the output signal.
TW99129997A 2010-09-06 2010-09-06 TWI413112B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW99129997A TWI413112B (en) 2010-09-06 2010-09-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW99129997A TWI413112B (en) 2010-09-06 2010-09-06

Publications (2)

Publication Number Publication Date
TW201212008A TW201212008A (en) 2012-03-16
TWI413112B true TWI413112B (en) 2013-10-21

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ID=46764501

Family Applications (1)

Application Number Title Priority Date Filing Date
TW99129997A TWI413112B (en) 2010-09-06 2010-09-06

Country Status (1)

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TW (1) TWI413112B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103997561A (en) * 2013-02-20 2014-08-20 宏达国际电子股份有限公司 Communication apparatus and voice processing method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9633654B2 (en) * 2011-12-06 2017-04-25 Intel Corporation Low power voice detection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW291556B (en) * 1995-02-17 1996-11-21 Sony Co Ltd
CN1269107C (en) * 2003-06-12 2006-08-09 阿尔派株式会社 Speech correction apparatus
EP1141948B1 (en) * 1999-01-07 2007-04-04 Tellabs Operations, Inc. Method and apparatus for adaptively suppressing noise
TW200826065A (en) * 2006-12-15 2008-06-16 Fortemedia Inc Internet communication devices and method for controlling noise thereof
US7788093B2 (en) * 2001-03-28 2010-08-31 Mitsubishi Denki Kabushiki Kaisha Noise suppression device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW291556B (en) * 1995-02-17 1996-11-21 Sony Co Ltd
EP1141948B1 (en) * 1999-01-07 2007-04-04 Tellabs Operations, Inc. Method and apparatus for adaptively suppressing noise
US7788093B2 (en) * 2001-03-28 2010-08-31 Mitsubishi Denki Kabushiki Kaisha Noise suppression device
CN1269107C (en) * 2003-06-12 2006-08-09 阿尔派株式会社 Speech correction apparatus
TW200826065A (en) * 2006-12-15 2008-06-16 Fortemedia Inc Internet communication devices and method for controlling noise thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103997561A (en) * 2013-02-20 2014-08-20 宏达国际电子股份有限公司 Communication apparatus and voice processing method therefor

Also Published As

Publication number Publication date
TW201212008A (en) 2012-03-16

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