METHOD AND APPARATUS FOR ENCODING/DECODING MULTI-CHANNEL AUDIO SIGNAL BY USING A PLURALITY OF VARIABLE LENGTH CODE TABLES
    1.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING MULTI-CHANNEL AUDIO SIGNAL BY USING A PLURALITY OF VARIABLE LENGTH CODE TABLES 审中-公开
    通过使用多个可变长度代码表来编码/解码多通道音频信号的方法和装置

    公开(公告)号:US20090228284A1

    公开(公告)日:2009-09-10

    申请号:US12397505

    申请日:2009-03-04

    IPC分类号: G10L19/00

    CPC分类号: G10L19/035

    摘要: A method and apparatus for encoding a multi-channel audio signal is provided. The method includes the operations of selecting a first variable length code table (VLC) that is to be used to encode the multi-channel audio signal in a given frequency band, from among a plurality of VLC tables, and encoding the multi-channel audio signal by using the first VLC table. Thus, the multi-channel audio signal can be encoded by using VLC tables that differ according to frequency bands.

    摘要翻译: 提供了一种用于对多声道音频信号进行编码的方法和装置。 该方法包括从多个VLC表中选择要用于对给定频带中的多声道音频信号进行编码的第一可变长度码表(VLC)和对多声道音频进行编码的操作 信号通过使用第一个VLC表。 因此,可以通过使用根据频带而不同的VLC表来编码多声道音频信号。

    METHOD AND APPARATUS FOR FREQUENCY ENCODING, AND METHOD AND APPARATUS FOR FREQUENCY DECODING
    2.
    发明申请
    METHOD AND APPARATUS FOR FREQUENCY ENCODING, AND METHOD AND APPARATUS FOR FREQUENCY DECODING 有权
    用于频率编码的方法和装置,以及用于频率解码的方法和装置

    公开(公告)号:US20090198489A1

    公开(公告)日:2009-08-06

    申请号:US12363937

    申请日:2009-02-02

    IPC分类号: G10L19/00

    CPC分类号: G10L19/093

    摘要: Provided are a method and apparatus for encoding the frequency of a continuation sinusoidal signal and a method and apparatus for decoding the same. In the encoding method, a continuation sinusoidal signal successive to a sinusoidal signal in a previous section is extracted from a current section; a frequency of the continuation sinusoidal signal at the boundary between the current and previous sections is changed to a first frequency, based on representative frequencies of the continuation sinusoidal signal and at least one sinusoidal signal that belongs to a section adjacent to the current section and is successive to the continuation sinusoidal signal; and the first frequency is encoded.

    摘要翻译: 提供一种用于对连续正弦信号的频率进行编码的方法和装置,以及用于对其进行解码的方法和装置。 在编码方法中,从当前部分提取与前一部分中的正弦信号连续的连续正弦信号; 基于连续正弦信号的代表频率和属于与当前部分相邻的部分的至少一个正弦信号,在当前部分和前一部分之间的边界处的连续正弦信号的频率被改变为第一频率,并且是 连续的正弦信号; 并且第一频率被编码。

    METHOD OF PROCESSING SIGNAL, ENCODING APPARATUS THEREOF, DECODING APPARATUS THEREOF, AND SIGNAL PROCESSING SYSTEM
    3.
    发明申请
    METHOD OF PROCESSING SIGNAL, ENCODING APPARATUS THEREOF, DECODING APPARATUS THEREOF, AND SIGNAL PROCESSING SYSTEM 有权
    信号处理方法,编码装置及其解码装置及信号处理系统

    公开(公告)号:US20120035939A1

    公开(公告)日:2012-02-09

    申请号:US13204179

    申请日:2011-08-05

    IPC分类号: G10L21/00

    摘要: A method processing a signal, an encoding apparatus, and a decoding apparatus are provided. The method of processing a signal includes restoring a down-mixed original signal using a re-quantized prediction parameter to generate a restored signal in an encoding apparatus; generating mute information indicating whether the down-mixed original signal has been muted, according to a value of the restored signal; and transmitting the mute information and the down-mixed original signal from the encoding apparatus to a decoding apparatus.

    摘要翻译: 提供一种处理信号的方法,编码装置和解码装置。 处理信号的方法包括使用重新量化的预测参数恢复下混合的原始信号,以在编码装置中产生恢复的信号; 根据恢复信号的值产生指示下混合原始信号是否被静音的静音信息; 以及将来自编码装置的静音信息和下混合原始信号发送到解码装置。

    METHODS AND APPARATUSES FOR ENCODING AND DECODING AUDIO SIGNAL
    6.
    发明申请
    METHODS AND APPARATUSES FOR ENCODING AND DECODING AUDIO SIGNAL 审中-公开
    编码和解码音频信号的方法和设备

    公开(公告)号:US20090192792A1

    公开(公告)日:2009-07-30

    申请号:US12361999

    申请日:2009-01-29

    IPC分类号: G10L19/00

    CPC分类号: G10L19/083

    摘要: Provided are methods and apparatuses for more efficiently encoding and decoding a high frequency band signal which is from an audio signal and which is greater than a predetermined threshold frequency. The method and apparatus for encoding the audio signal encodes a linear prediction coding (LPC) coefficient and gain information of a residual signal, which are generated by performing LPC analysis, thereby encoding a high frequency signal so as to have enhanced sound quality, while using less bits.

    摘要翻译: 提供了用于更有效地编码和解码来自音频信号并且大于预定阈值频率的高频带信号的方法和装置。 用于对音频信号进行编码的方法和装置对通过执行LPC分析而产生的残差信号的线性预测编码(LPC)系数和增益信息进行编码,从而对高频信号进行编码以便具有增强的声音质量,同时使用 少位

    AUDIO SIGNAL PROCESSING METHOD, ENCODING APPARATUS THEREFOR, AND DECODING APPARATUS THEREFOR
    7.
    发明申请
    AUDIO SIGNAL PROCESSING METHOD, ENCODING APPARATUS THEREFOR, AND DECODING APPARATUS THEREFOR 审中-公开
    音频信号处理方法,其编码装置及其解码装置

    公开(公告)号:US20120035940A1

    公开(公告)日:2012-02-09

    申请号:US13204198

    申请日:2011-08-05

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008

    摘要: An audio signal processing method includes: receiving an audio signal comprising consecutive frames; generating a first encoding parameter corresponding to a first frame among the consecutive frames and a second encoding parameter corresponding to a second frame adjacent to the first frame; and generating at least one interpolated parameter based on the first encoding parameter and the second encoding parameter.

    摘要翻译: 音频信号处理方法包括:接收包括连续帧的音频信号; 生成对应于连续帧中的第一帧的第一编码参数和对应于与第一帧相邻的第二帧的第二编码参数; 以及基于所述第一编码参数和所述第二编码参数生成至少一个内插参数。

    METHOD AND APPARATUS FOR ENCODING/DECODING STEREO AUDIO
    8.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING STEREO AUDIO 有权
    编码/解码立体声音频的方法和装置

    公开(公告)号:US20090210236A1

    公开(公告)日:2009-08-20

    申请号:US12389639

    申请日:2009-02-20

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008

    摘要: Provided are a method and apparatus for encoding/decoding stereo audio. In the method for encoding stereo audio, stereo audio is encoded based on at least one of the phase difference between first and second channel audios and information on an angle made by a vector on the intensity of mono-audio and a vector on the intensity of the first channel audio or a vector on the intensity of the second channel audio. Thus, the number of encoded parameters is minimized so that a compression ratio in the encoding of the stereo audio is improved.

    摘要翻译: 提供了一种用于对立体声音频进行编码/解码的方法和装置。 在对立体声音频进行编码的方法中,基于第一和第二声道音频之间的相位差中的至少一个以及由矢量对单声道的强度和向量的角度的信息对立体声音频进行编码, 第一声​​道音频或第二声道音频强度的向量。 因此,编码参数的数量被最小化,从而提高了立体声音频的编码中的压缩率。

    METHOD AND APPARATUS FOR ENCODING RESIDUAL SIGNALS AND METHOD AND APPARATUS FOR DECODING RESIDUAL SIGNALS
    9.
    发明申请
    METHOD AND APPARATUS FOR ENCODING RESIDUAL SIGNALS AND METHOD AND APPARATUS FOR DECODING RESIDUAL SIGNALS 有权
    用于编码残留信号的方法和装置以及用于解码残留信号的方法和装置

    公开(公告)号:US20090198499A1

    公开(公告)日:2009-08-06

    申请号:US12174936

    申请日:2008-07-17

    IPC分类号: G10L19/00

    CPC分类号: G10L19/08 G10L19/025

    摘要: Encoding and decoding of residual signals are provided. In a method of encoding a residual signal of an audio signal, the residual signal is divided into a plurality of sections having different sizes, based on a change of the residual signal. Then, section division information representing information about the divided sections and section-by-section residual signal information representing characteristics of the sections of the residual signal are acquired. Thereafter, the residual signal is encoded based on the section division information and the section-by-section residual signal information.

    摘要翻译: 提供残留信号的编码和解码。 在对音频信号的残差信号进行编码的方法中,残差信号根据残差信号的变化被划分为具有不同大小的多个部分。 然后,获取表示关于分割部分的信息的部分分割信息和表示残留信号的各部分的特征的逐段残差信号信息。 此后,基于区段分割信息和逐段残差信号对剩余信号进行编码。

    MULTI-CHANNEL AUDIO DECODING METHOD AND APPARATUS THEREFOR
    10.
    发明申请
    MULTI-CHANNEL AUDIO DECODING METHOD AND APPARATUS THEREFOR 有权
    多声道音频解码方法及其设备

    公开(公告)号:US20110046963A1

    公开(公告)日:2011-02-24

    申请号:US12693990

    申请日:2010-01-26

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008

    摘要: Provided is a multi-channel audio decoding method and apparatus therefor, the method involving decoding filter bank coefficients of a plurality of bands from a bitstream having a predetermined format; performing frequency transformation on the decoded filter bank coefficients of the plurality of bands, with respect to each of the plurality of bands; compensating for a phase of each of the plurality of bands according to a predetermined phase compensation value, and serially band-synthesizing the frequency-transformed coefficients of each of the plurality of phase-compensated bands on a frequency domain; and decoding a multi-channel audio signal from the band-synthesized frequency-transformed coefficients.

    摘要翻译: 提供一种多声道音频解码方法及其装置,该方法包括从具有预定格式的比特流中解码多个频带的滤波器组系数; 对所述多个频带的解码滤波器组系数进行相对于所述多个频带中的每一个的频率变换; 根据预定的相位补偿值补偿多个频带中的每一个的相位,并且对频域上的多个相位补偿频带中的每一个的频率变换系数进行串行频带合成; 以及从频带合成的频率变换系数中解码多声道音频信号。