Title:
METHOD AND DEVICE FOR ADJUSTING REFERENCE SIGNAL
Document Type and Number:
WIPO Patent Application WO/2016/127699
Kind Code:
A1
Abstract:
Disclosed are a method and device for adjusting a reference signal, the method comprising: when an input voice signal of an audio acquisition device is detected, periodically and simultaneously acquiring the input voice signal of the audio acquisition device and an output voice signal of a bottom audio output device according to a preset duration; setting the input voice signal to be a main audio signal, and setting the output voice signal delayed by a fixed time to be a reference signal for echo cancellation; and when an absolute value of a time deviation between the main audio signal and the reference signal in a preset time period is greater than an adjustment threshold, adjusting the reference signal to enable the absolute value of the time deviation to be less than or equal to the adjustment threshold.
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Inventors:
CHENG CEN (CN)
Application Number:
PCT/CN2015/097015
Publication Date:
August 18, 2016
Filing Date:
December 10, 2015
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04M9/08
Foreign References:
| CN103391381A | 2013-11-13 | |||
| CN103685795A | 2014-03-26 | |||
| CN101763858A | 2010-06-30 | |||
| EP1655856A1 | 2006-05-10 |
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (CN)
北京安信方达知识产权代理有限公司 (CN)
北京安信方达知识产权代理有限公司 (CN)
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