Apparatus and Method for Encoding/Decoding Signal
    51.
    发明申请
    Apparatus and Method for Encoding/Decoding Signal 有权
    用于编码/解码信号的装置和方法

    公开(公告)号:US20090010440A1

    公开(公告)日:2009-01-08

    申请号:US12278568

    申请日:2007-02-07

    IPC分类号: H04R5/00 G10L19/00

    摘要: An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a down-mix signal and spatial information regarding a plurality of channels from an input bitstream, and generating a three-dimensional (3D) down-mix signal by performing a 3D rendering operation on the down-mix signal using the spatial information and a filter, wherein the sum of the number of valid signals of the down-mix signal, the number of valid signals of the spatial information, and the number of valid signals of co-efficients of the filter is less than the number of valid signals of the 3D down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment.

    摘要翻译: 提供了编码方法和装置以及解码方法和装置。 解码方法包括从输入比特流中提取关于多个信道的下混合信号和空间信息,并且通过使用下混合信号对缩小混合信号执行3D渲染操作来生成三维(3D)降混信号 空间信息和滤波器,其中下混合信号的有效信号数量,空间信息的有效信号的数量和滤波器的有效信号的数量之和小于数字 的3D下混合信号的有效信号。 因此,可以有效地编码具有3D效果的多声道信号,并根据音频再现环境的特性自适应地恢复和再现具有最佳声音质量的音频信号。

    Method and Apparatus for Processing a Media Signal
    52.
    发明申请
    Method and Apparatus for Processing a Media Signal 有权
    用于处理媒体信号的方法和装置

    公开(公告)号:US20090003611A1

    公开(公告)日:2009-01-01

    申请号:US12161337

    申请日:2007-01-19

    IPC分类号: H04R5/00

    摘要: An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of extracting a downmix signal from a bitstream; generating a decorrelated downmix signal by applying a decorrelator to the downmix signal; and generating a surround signal by applying rendering information for generating a surround signal to the downmix signal and the decorrelated downmix signal.

    摘要翻译: 公开了一种用于处理媒体信号的装置及其方法,利用该装置可以通过使用媒体信号的空间信息将媒体信号转换成环绕信号。 本发明提供一种处理信号的方法,所述方法包括从比特流中提取下混合信号; 通过将去相关器应用于所述降混信号来产生去相关的下混合信号; 以及通过将用于产生环绕信号的渲染信息应用于降混信号和解相关的下混信号来产生环绕信号。

    Method and Apparatus for Decoding an Audio Signal
    53.
    发明申请
    Method and Apparatus for Decoding an Audio Signal 有权
    用于解码音频信号的方法和装置

    公开(公告)号:US20080294444A1

    公开(公告)日:2008-11-27

    申请号:US11915327

    申请日:2006-05-25

    IPC分类号: G10L19/00

    摘要: Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal and generating a pseudo-surround signal using the downmix signal and the spatial information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal and a pseudo-surround decoding part generating a pseudo-surround signal from the downmix signal, using the spatial information.

    摘要翻译: 提供了用于处理音频信号的方法和装置。 用于解码音频信号的方法包括从接收到的音频信号中提取降混信号和空间信息,并使用降混信号和空间信息产生伪环绕信号。 用于解码音频信号的装置包括:解复用部分,使用空间信息,从接收到的音频信号中提取下混合信号和空间信息;以及伪环绕解码部分,从缩混信号产生伪环绕信号。

    Method and Apparatus for Processing a Media Signal
    54.
    发明申请
    Method and Apparatus for Processing a Media Signal 有权
    用于处理媒体信号的方法和装置

    公开(公告)号:US20080279388A1

    公开(公告)日:2008-11-13

    申请号:US12161329

    申请日:2007-01-19

    IPC分类号: H04R5/00

    摘要: An apparatus for processing a media signal and method thereof are disclosed, by which the media signal can be converted to a surround signal a surround signal by using spatial information of the media signal. The present invention provides a method of processing a signal, the method comprising of generating source mapping information corresponding to each source of multi-sources by using spatial information indicating features between the multi-sources; generating at least one rendering information by using the source mapping information and filter information having a surround effect; and performing interpolation by using neighbor rendering information of the at least one rendering information.

    摘要翻译: 公开了一种用于处理媒体信号的装置及其方法,利用该装置可以通过使用媒体信号的空间信息将媒体信号转换成环绕信号环绕信号。 本发明提供一种处理信号的方法,该方法包括:通过使用指示多源之间的特征的空间信息,生成与每个源的源相对应的源映射信息; 通过使用源映射信息和具有环绕效果的过滤器信息来生成至少一个呈现信息; 以及通过使用所述至少一个呈现信息的相邻呈现信息来执行内插。

    Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof
    55.
    发明申请
    Method for Encoding and Decoding Multi-Channel Audio Signal and Apparatus Thereof 审中-公开
    多声道音频信号的编码和解码方法及其设备

    公开(公告)号:US20080262853A1

    公开(公告)日:2008-10-23

    申请号:US12091052

    申请日:2006-10-20

    IPC分类号: G10L19/00

    摘要: Methods and apparatuses for encoding and decoding a multi-channel audio signal are provided. In the encoding method, spatial information is calculated based on a multi-channel audio signal and a down-mix signal, and a compensation parameter that compensates for the down-mix signal is calculated based on the multi-channel audio signal and the down-mix signal. Thereafter, a bitstream is generated by encoding the spatial information, the compensation parameter, and the down-mix signal and combining the results of the encoding. Therefore, it is possible to prevent deterioration of the quality of sound regarding a multi-channel audio signal by compensating for the multi-channel audio signal using a compensation parameter that compensates for a down-mix signal.

    摘要翻译: 提供了用于编码和解码多声道音频信号的方法和装置。 在编码方法中,基于多声道音频信号和降混信号来计算空间信息,并且基于多声道音频信号和下行信号来计算补偿下混合信号的补偿参数, 混合信号。 此后,通过对空间信息,补偿参数和缩减混音信号进行编码并组合编码的结果来产生比特流。 因此,可以通过使用补偿降混信号的补偿参数来补偿多声道音频信号来防止关于多声道音频信号的声音质量的劣化。

    Apparatus For Encoding and Decoding Audio Signal and Method Thereof
    57.
    发明申请
    Apparatus For Encoding and Decoding Audio Signal and Method Thereof 有权
    用于编码和解码音频信号的装置及方法

    公开(公告)号:US20080212803A1

    公开(公告)日:2008-09-04

    申请号:US11994315

    申请日:2006-06-30

    IPC分类号: H04B1/00

    CPC分类号: G10L19/008

    摘要: A method and/or apparatus for encoding and/or decoding an audio signal is disclosed, in which a downmix gain is applied to a downmix signal in an encoding apparatus which, in turn, transmits, to a decoding apparatus, a bit stream containing information as to the applied downmix gain. The decoding apparatus recovers the downmix signal, using the downmix gain information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the encoding apparatus can apply an arbitrary downmix gain (ADG) to the downmix signal, and can transmit a bit stream containing information as to the applied ADG to the decoding apparatus. The decoding apparatus recovers the downmix signal, using the ADG information. A method and/or apparatus for encoding and/or decoding an audio signal is also disclosed, in which the method and/or apparatus can also vary the energy level of a specific channel, and can recover the varied energy level.

    摘要翻译: 公开了一种用于对音频信号进行编码和/或解码的方法和/或装置,其中降混增益被应用于编码装置中的下混合信号,该编码装置又将解码装置传送到包含信息的比特流 关于应用的下混增益。 解码装置使用下混增益信息来恢复下混信号。 还公开了一种用于对音频信号进行编码和/或解码的方法和/或装置,其中编码装置可以对下混合信号应用任意的下混增益(ADG),并且可以发送包含关于应用的信息的比特流 ADG到解码装置。 解码装置使用ADG信息恢复下混信号。 还公开了一种用于对音频信号进行编码和/或解码的方法和/或装置,其中所述方法和/或装置还可以改变特定信道的能级,并且可以恢复变化的能级。

    Apparatus and method for encoding/decoding signal
    58.
    发明授权
    Apparatus and method for encoding/decoding signal 有权
    信号编码/解码的装置和方法

    公开(公告)号:US08638945B2

    公开(公告)日:2014-01-28

    申请号:US12278775

    申请日:2007-02-07

    IPC分类号: H04R5/00

    摘要: An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes skipping extension information included in an input bitstream, extracting a three-dimensional (3D) down-mix signal and spatial information from the input bitstream, removing 3D effects from the 3D down-mix signal by performing a 3D rendering operation on the 3D down-mix signal, and generating a multi-channel signal using a down-mix signal obtained by the removal and the spatial information. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment.

    摘要翻译: 提供了编码方法和装置以及解码方法和装置。 解码方法包括跳过包括在输入比特流中的扩展信息,从输入比特流中提取三维(3D)降混信号和空间信息,通过对3D降混信号执行3D渲染操作来去除3D降混信号的3D效果 3D下混合信号,并且使用通过去除获得的缩减混音信号和空间信息来生成多声道信号。 因此,可以有效地编码具有3D效果的多声道信号,并根据音频再现环境的特性自适应地恢复和再现具有最佳声音质量的音频信号。

    Apparatus and method for encoding/decoding signal
    59.
    发明授权
    Apparatus and method for encoding/decoding signal 有权
    信号编码/解码的装置和方法

    公开(公告)号:US08612238B2

    公开(公告)日:2013-12-17

    申请号:US12278569

    申请日:2007-02-07

    IPC分类号: G10L19/00

    摘要: An encoding method and apparatus and a decoding method and apparatus are provided. The decoding method includes extracting a three-dimensional (3D) down-mix signal from an input bitstream, generating a down-mix signal with 3D effects removed therefrom by performing a 3D rendering operation on the extracted 3D down-mix signal, and generating a 3D down-mix signal with 3D effects by performing a 3D rendering operation on the generated down-mix signal. Accordingly, it is possible to efficiently encode multi-channel signals with 3D effects and to adaptively restore and reproduce audio signals with optimum sound quality according to the characteristics of an audio reproduction environment.

    摘要翻译: 提供了编码方法和装置以及解码方法和装置。 解码方法包括从输入比特流中提取三维(3D)降混信号,通过对所提取的3D缩小混合信号执行3D渲染操作,生成具有从其中去除的3D效果的缩减混音信号,并且生成 通过对生成的下混合信号执行3D渲染操作,具有3D效果的3D降混信号。 因此,可以有效地编码具有3D效果的多声道信号,并根据音频再现环境的特性自适应地恢复和再现具有最佳声音质量的音频信号。

    Method for decoding an audio signal
    60.
    发明授权
    Method for decoding an audio signal 有权
    音频信号解码方法

    公开(公告)号:US08577483B2

    公开(公告)日:2013-11-05

    申请号:US12065267

    申请日:2006-08-30

    IPC分类号: G06F17/00

    CPC分类号: G10L19/008

    摘要: The invention relates to a method for decoding an audio signal, to allow an audio signal to be compressed and transferred more efficiently. The inventive method comprises steps of receiving an audio signal with spatial information signal, obtaining location information using the number of time slot and parameter of audio signal, establishing a multi-channel audio signal by applying spatial information signal to down-mix signal, and performing a multi-channel array for a multi-channel audio signal in response to the output channel.

    摘要翻译: 本发明涉及一种对音频信号进行解码的方法,以便更有效地压缩和传送音频信号。 本发明的方法包括以下步骤:利用空间信息信号接收音频信号,使用时隙的数量和音频信号的参数获得位置信息,通过将空间信息信号应用于降混信号来建立多声道音频信号,以及执行 用于响应于输出通道的多通道音频信号的多通道阵列。