Invention Grant
US09251799B2 Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding
有权
使用自适应正弦编码对音频信号进行编码和解码的方法和装置
- Patent Title: Method and apparatus for encoding and decoding audio signal using adaptive sinusoidal coding
- Patent Title (中): 使用自适应正弦编码对音频信号进行编码和解码的方法和装置
-
Application No.: US14315964Application Date: 2014-06-26
-
Publication No.: US09251799B2Publication Date: 2016-02-02
- Inventor: Mi-Suk Lee , Hyun-Joo Bae , Byung-Sun Lee
- Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Applicant Address: KR Daejeon
- Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Current Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
- Current Assignee Address: KR Daejeon
- Agency: Staas & Halsey LLP
- Priority: KR10-2009-0012356 20090216; KR10-2009-0092717 20090929
- Main IPC: G06F15/00
- IPC: G06F15/00 ; G10L25/00 ; G10L19/02 ; G10L21/02 ; G10L25/90 ; G10L19/00 ; G10L19/008 ; G10L19/24 ; G10L19/093

Abstract:
A method and an apparatus for encoding and decoding audio signals using adaptive sinusoidal coding are provided. The audio signal encoding method includes the steps of dividing a synthesized audio signal into a plurality of sub-bands, calculating the energy of each sub-band, selecting a predetermined number of sub-bands having a relatively large amount of energy from the sub-bands, and performing sinusoidal coding with regard to the selected sub-bands. Application of sinusoidal coding based on consideration of the amount of energy of each sub-band of the synthesized signal improves the quality of the synthesized signal more efficiently.
Public/Granted literature
- US20140310007A1 METHOD AND APPARATUS FOR ENCODING AND DECODING AUDIO SIGNAL USING ADAPTIVE SINUSOIDAL CODING Public/Granted day:2014-10-16
Information query