METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL
    11.
    发明申请
    METHOD AND AN APPARATUS FOR PROCESSING AN AUDIO SIGNAL 审中-公开
    用于处理音频信号的方法和装置

    公开(公告)号:US20100284549A1

    公开(公告)日:2010-11-11

    申请号:US12811299

    申请日:2008-12-31

    IPC分类号: H04B1/00

    摘要: A method of processing an audio signal is disclosed. The present invention includes receiving a downmix signal including at least one object signal and object information extracted when the downmix signal is generated, receiving mix information for controlling the object signal, generating one of downmix processing information and multi-channel information using the object information and the mix information according to an output mode, and if the downmix processing information is generated, generating an output signal by applying the downmix processing information to the downmix signal, wherein the downmix signal and the output signal correspond to a mono signal and wherein the multi-channel information corresponds to information for upmixing the downmix signal into a plurality of channel signals.

    摘要翻译: 公开了一种处理音频信号的方法。 本发明包括接收包括至少一个对象信号的下混信号和产生下混合信号时提取的对象信息,接收用于控制对象信号的混合信息,使用对象信息生成下混处理信息和多信道信息之一;以及 根据输出模式的混合信息,并且如果产生下混处理信息,则通过将降混处理信息应用于降混信号来产生输出信号,其中下混信号和输出信号对应于单信号,并且其中多 信道信息对应于用于将下混信号上混合成多个信道信号的信息。

    Method and an apparatus for decoding an audio signal
    12.
    发明授权
    Method and an apparatus for decoding an audio signal 有权
    用于对音频信号进行解码的方法和装置

    公开(公告)号:US07783049B2

    公开(公告)日:2010-08-24

    申请号:US12573044

    申请日:2009-10-02

    IPC分类号: H04R5/00

    摘要: A method for processing an audio signal, comprising: receiving a downmix signal in time domain; if the downmix signal corresponds to a mono signal, bypassing the downmix signal; if the number of channel of the downmix signal corresponds to at least two, decomposing the downmix signal into a subband signal, and processing the subband signal using a downmix processing information, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed.

    摘要翻译: 一种用于处理音频信号的方法,包括:在时域中接收降混信号; 如果下混合信号对应于单声道信号,则绕过下混合信号; 如果下混合信号的信道数至少为2,则将下混合信号分解成子带信号,并使用下混处理信息处理子带信号,其中根据对象信息和混合来估计下混合处理信息 信息披露。

    Method and apparatus for encoding/decoding multi-channel audio signal
    15.
    发明授权
    Method and apparatus for encoding/decoding multi-channel audio signal 有权
    用于对多声道音频信号进行编码/解码的方法和装置

    公开(公告)号:US07719445B2

    公开(公告)日:2010-05-18

    申请号:US12088424

    申请日:2006-09-27

    IPC分类号: H03M7/00

    CPC分类号: G10L19/032 G10L19/008

    摘要: Methods of encoding and decoding a multi-channel audio signal and apparatuses for encoding and decoding a multi-channel audio signal are provided. The apparatus for decoding a multi-channel audio signal includes an unpacking extracting which extracts a pilot and data regarding a quantized CLD between a pair of channels of the plurality of channels from the bitstream, a differential decoding unit which restores a quantized CLD by adding the extracted pilot to the extracted data, and an inverse quantization unit which inversely quantizes the restored quantized CLD using a quantization table that considers the location properties of the pair of channels. The methods of encoding and decoding a multi-channel audio signal and the apparatuses for encoding and decoding a multi-channel audio signal can enable an efficient encoding/decoding by reducing the number of quantization bits required.

    摘要翻译: 提供了对多声道音频信号进行编码和解码的方法以及用于编码和解码多声道音频信号的装置。 用于解码多声道音频信号的装置包括从比特流中提取导频和关于多个信道中的一对信道之间的量化CLD的数据的解包提取,差分解码单元,其通过将来自比特流的多个信道 提取的导频到所提取的数据;以及逆量化单元,其使用考虑了该对信道的位置属性的量化表对所恢复的量化CLD进行逆量化。 编码和解码多声道音频信号的方法以及用于对多声道音频信号进行编码和解码的装置可以通过减少所需量化位的数量来实现有效的编码/解码。

    Method and an Apparatus for Decoding an Audio Signal
    16.
    发明申请
    Method and an 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:US20100010820A1

    公开(公告)日:2010-01-14

    申请号:US12573061

    申请日:2009-10-02

    IPC分类号: G10L19/00

    摘要: A method for processing an audio signal, comprising: receiving a downmix signal and a downmix processing information; and, processing the downmix signal using a downmix processing information, comprising: de-correlating the downmix signal; and, mixing the downmix signal and the de-correlated signal in order to output the processed downmix signal, wherein the downmix processing information is estimated based on an object information and a mix information is disclosed.

    摘要翻译: 一种用于处理音频信号的方法,包括:接收下混合信号和下混处理信息; 以及使用下混处理信息来处理所述下混合信号,包括:将所述降混信号去相关; 以及混合下混合信号和去相关信号以便输出经处理的下混合信号,其中基于对象信息估计下混处理信息,并且公开了混合信息。

    Apparatus and Method for Encoding/Decoding Signal
    17.
    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
    18.
    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 Processing a Media Signal
    19.
    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
    20.
    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。