Title:
減衰率を取得する方法および装置
Document Type and Number:
Japanese Patent JP4824734
Kind Code:
B2
Abstract:
The present invention discloses a method for obtaining an attenuation factor. The method is adapted to process the synthesized signal in packet loss concealment, and includes: obtaining a change trend of a signal; obtaining an attenuation factor according to the change trend of the signal. The present invention also discloses an apparatus for obtaining an attenuation factor. A self-adaptive attenuation factor is adjusted dynamically by using the latest change trend of a history signal by using the present invention. The smooth transition from the history data to the data last received is realized so that the attenuation speed is kept consistent between the compensated signal and the original signal as much as possible for adapting to the characteristic of various human voices.
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Inventors:
Chang, Woo Chou
One, donch
Tou, Yong Feng
One, gin
Chan, Chin
Miao, Rei
Shu, Jiang Feng
Huh, Chen
Yang, Lee
Do, Cheng Chong
Ji, Feng Yang
One, donch
Tou, Yong Feng
One, gin
Chan, Chin
Miao, Rei
Shu, Jiang Feng
Huh, Chen
Yang, Lee
Do, Cheng Chong
Ji, Feng Yang
Application Number:
JP2008284260A
Publication Date:
November 30, 2011
Filing Date:
November 05, 2008
Export Citation:
Assignee:
HUAWEI TECHNOLOGIES CO.,LTD.
International Classes:
G10L19/005; G10L25/12
Domestic Patent References:
| JP200059231A | ||||
| JP63221399A | ||||
| JP2001228896A |
Foreign References:
| WO2006009074A1 | ||||
| WO2006098274A1 | ||||
| WO2004068098A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Kato Kazunori
Katsuichi Nishimoto