METHOD, MEDIUM AND APPARATUS FOR ENCODING AND/OR DECODING SIGNAL
    2.
    发明申请
    METHOD, MEDIUM AND APPARATUS FOR ENCODING AND/OR DECODING SIGNAL 审中-公开
    用于编码和/或解码信号的方法,介质和装置

    公开(公告)号:US20090006081A1

    公开(公告)日:2009-01-01

    申请号:US12033342

    申请日:2008-02-19

    IPC分类号: G10L19/00

    摘要: Provided are a method and apparatus for encoding or decoding an audio signal or a speech signal. In the encoding method, encoding is performed by performing domain transformation on a received signal in units of frequency bands by applying a psychoacoustic model, encoding the transformation result with respect to predetermined one or more frequency bands by using a high temporal resolution coding tool, and then quantizing the encoding result. In the decoding method, decoding is performed by inversely quantizing signals obtained by encoding in units of frequency bands, decoding one or more signals from among the inversely quantized signals, which are allocated to one or more frequency bands which have a predetermined domain resolution, determined by applying the psychoacoustic model, that is greater than a predetermined value, according to a predetermined method, and then inversely transforming either the inversely quantized or the one or more decoded signals.

    摘要翻译: 提供了一种用于对音频信号或语音信号进行编码或解码的方法和装置。 在编码方法中,通过使用心理声学模型,通过使用高时间分辨率编码工具对相对于预定的一个或多个频带进行变换结果的编码,对以频带为单位的接收信号进行域变换来进行编码,以及 然后量化编码结果。 在解码方法中,通过对由频带单位进行编码而得到的信号进行逆量化,对从量化后的信号中分离的一个以上的信号进行解码,分解成具有规定的域分辨率的一个以上的频带, 通过应用根据预定方法大于预定值的心理声学模型,然后逆向变换反量化或一个或多个解码信号。

    Apparatus and method of encoding and decoding signals
    5.
    发明授权
    Apparatus and method of encoding and decoding signals 有权
    信号编码和解码的装置和方法

    公开(公告)号:US08428958B2

    公开(公告)日:2013-04-23

    申请号:US12246570

    申请日:2008-10-07

    IPC分类号: G10L19/00

    摘要: A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.

    摘要翻译: 一种编码音频信号的方法,其中包括两个或更多个信道信号的信号被下混合到单声道信号,单声道信号被分为低频信号和高频信号,低频信号通过代数 代码激励线性预测(ACELP)或变换编码激励(TCX),并且使用低频信号对高频信号进行编码。 解码音频信号的方法,通过ACELP或TCX编码的低频信号进行解码,使用低频信号对低频信号进行解码,将低频信号和高频信号合成为 产生单声道信号,并且单声道信号通过解码关于包括两个或更多个声道信号的信号的空间参数来混合。

    APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS
    6.
    发明申请
    APPARATUS AND METHOD OF ENCODING AND DECODING SIGNALS 有权
    编码和解码信号的装置和方法

    公开(公告)号:US20090210234A1

    公开(公告)日:2009-08-20

    申请号:US12246570

    申请日:2008-10-07

    IPC分类号: G10L19/00

    摘要: A method of encoding an audio signal, where signals including two or more channel signals are downmixed to a mono signal, the mono signal is divided into a low-frequency signal and a high-frequency signal, the low-frequency signal is encoded through algebraic code excited linear prediction (ACELP) or transform coded excitation (TCX), and the high-frequency signal is encoded using the low-frequency signal. A method of decoding of an audio signal, a low-frequency signal encoded through ACELP or TCX is decoded, a high-frequency signal is decoded using the low-frequency signal, the low-frequency signal and the high-frequency signal are combined to generate a mono signal, and the mono signal is upmixed by decoding spatial parameters regarding signals including two or more channel signals.

    摘要翻译: 一种编码音频信号的方法,其中包括两个或更多个信道信号的信号被下混合到单声道信号,单声道信号被分为低频信号和高频信号,低频信号通过代数 代码激励线性预测(ACELP)或变换编码激励(TCX),并且使用低频信号对高频信号进行编码。 解码音频信号的方法,通过ACELP或TCX编码的低频信号进行解码,使用低频信号对低频信号进行解码,将低频信号和高频信号合成为 产生单声道信号,并且单声道信号通过解码关于包括两个或更多个声道信号的信号的空间参数来混合。

    TRANSCODING METHOD AND APPARATUS
    7.
    发明申请
    TRANSCODING METHOD AND APPARATUS 审中-公开
    TRANSCODING方法和装置

    公开(公告)号:US20090037180A1

    公开(公告)日:2009-02-05

    申请号:US11947016

    申请日:2007-11-29

    IPC分类号: G10L19/00

    CPC分类号: G10L19/0204 G10L19/173

    摘要: Provided is a method and apparatus for encoding a bitstream, which was encoded by a predetermined method, in another method. By adaptively encoding a bitstream encoded by a predetermined method by selecting a domain in which the encoding is performed for each predetermined band, the bitstream can be efficiently encoded and transmitted and received, and compatibility can be provided.

    摘要翻译: 提供了一种用于通过另一种方法对通过预定方法编码的比特流进行编码的方法和装置。 通过对通过选择对每个预定频带执行编码的域来自适应地编码由预定方法编码的比特流,可以有效地编码和发送和接收比特流,并且可以提供兼容性。

    Apparatus and method for processing audio signal and computer readable recording medium storing computer program for the method
    8.
    发明授权
    Apparatus and method for processing audio signal and computer readable recording medium storing computer program for the method 有权
    用于处理音频信号的装置和方法以及存储该方法的计算机程序的计算机可读记录介质

    公开(公告)号:US07561933B2

    公开(公告)日:2009-07-14

    申请号:US10793098

    申请日:2004-03-05

    IPC分类号: G06F17/00 G06F15/16

    CPC分类号: H04H20/82

    摘要: An audio signal processing apparatus and method and a computer readable recording medium storing a computer program for the method are provided. The audio signal processing apparatus includes: an input unit that receives the audio signal; and a signal processing unit that processes the audio signal received from the input unit using at least one of network information and terminal information and signal information, wherein the network information refers to information regarding the network, the status of the network varies at any time, the terminal information refers to information regarding the terminal, the status of the terminal varies at any time, and the signal information refers to information on the audio signal. The audio signal can be efficiently streamed in real-time using the network information and/or the terminal information, which vary at any time, so that the audio signal transmitted from, for example, a server side, can be seamlessly received by a terminal and can be reproduced at optimal, high sound quality by the terminal.

    摘要翻译: 提供一种存储用于该方法的计算机程序的音频信号处理装置和方法以及计算机可读记录介质。 音频信号处理装置包括:接收音频信号的输入单元; 以及信号处理单元,其使用网络信息和终端信息和信号信息中的至少一个来处理从输入单元接收的音频信号,其中网络信息涉及关于网络的信息,网络的状态随时变化, 终端信息是指关于终端的信息,终端的状态随时变化,信号信息是参照音频信号的信息。 可以使用在任何时间变化的网络信息和/或终端信息来实时有效地流式传输音频信号,使得从例如服务器侧发送的音频信号可以由终端无缝地接收 并可以通过终端以最佳,高音质再现。

    Noise filling and audio decoding
    9.
    发明授权
    Noise filling and audio decoding 有权
    噪声填充和音频解码

    公开(公告)号:US09236057B2

    公开(公告)日:2016-01-12

    申请号:US13471020

    申请日:2012-05-14

    摘要: A noise filling method is provided that includes detecting a frequency band including a part encoded to 0 from a spectrum obtained by decoding a bitstream; generating a noise component for the detected frequency band; and adjusting energy of the frequency band in which the noise component is generated and filled by using energy of the noise component and energy of the frequency band including the part encoded to 0.

    摘要翻译: 提供了一种噪声填充方法,其包括:从通过解码比特流而获得的频谱中检测包括编码为0的部分的频带; 产生用于所检测的频带的噪声分量; 并且通过使用噪声分量的能量和包括编码为0的部分的频带的能量来调整其中产生和填充噪声分量的频带的能量。