公开(公告)号：US09251799B2

公开(公告)日：2016-02-02

申请号：US14315964

申请日：2014-06-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Mi-Suk Lee ,  Hyun-Joo Bae ,  Byung-Sun Lee

IPC: G06F15/00 ,  G10L25/00 ,  G10L19/02 ,  G10L21/02 ,  G10L25/90 ,  G10L19/00 ,  G10L19/008 ,  G10L19/24 ,  G10L19/093

CPC classification number: G10L19/008 ,  G10L19/0204 ,  G10L19/093 ,  G10L19/24

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.

Abstract translation: 提供了一种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。 音频信号编码方法包括以下步骤：将合成的音频信号分成多个子带，计算每个子带的能量，从子帧中选择具有相对大量能量的预定数量的子带， 并且对于所选择的子带执行正弦编码。 基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。

公开(公告)号：US20140310007A1

公开(公告)日：2014-10-16

申请号：US14315964

申请日：2014-06-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Mi-Suk LEE ,  Hyun-Joo Bae ,  Byung-Sun Lee

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/0204 ,  G10L19/093 ,  G10L19/24

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.

Abstract translation: 提供了一种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。 音频信号编码方法包括以下步骤：将合成的音频信号分成多个子带，计算每个子带的能量，从子帧中选择具有相对大量能量的预定数量的子带， 并且对于所选择的子带执行正弦编码。 基于考虑合成信号的每个子带的能量量的正弦编码的应用更有效地提高了合成信号的质量。