Method for encoding and decoding multi-channel audio signal and apparatus thereof
    1.
    发明授权
    Method for encoding and decoding multi-channel audio signal and apparatus thereof 有权
    多声道音频信号的编码和解码方法及其装置

    公开(公告)号:US08804967B2

    公开(公告)日:2014-08-12

    申请号:US12830134

    申请日:2010-07-02

    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。

    Method for encoding and decoding multi-channel audio signal and apparatus thereof
    2.
    发明授权
    Method for encoding and decoding multi-channel audio signal and apparatus thereof 有权
    多声道音频信号的编码和解码方法及其装置

    公开(公告)号:US08498421B2

    公开(公告)日:2013-07-30

    申请号:US12969546

    申请日:2010-12-15

    IPC分类号: H04R5/00

    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。

    Method and apparatus for decoding an audio signal and identifying information included in the audio signal
    3.
    发明授权
    Method and apparatus for decoding an audio signal and identifying information included in the audio signal 有权
    用于对音频信号进行解码和识别包括在音频信号中的信息的方法和装置

    公开(公告)号:US08214221B2

    公开(公告)日:2012-07-03

    申请号:US11994407

    申请日:2006-06-30

    IPC分类号: G10L19/00

    CPC分类号: G10L19/008 G10L19/167

    摘要: A method and apparatus for encoding and decoding an audio signal are provided. The present invention includes receiving an audio signal including an audio descriptor, recognizing that the audio signal includes a downmix signal and a spatial information signal using the audio descriptor, and converting the downmix signal to a multi-channel signal using the spatial information signal, wherein the spatial information signal includes a header each a preset temporal or spatial interval, and the spatial information signal includes a header each a preset temporal or spatial interval thereby the header can be selectively included in the spatial information signal and if the header is plurally included in the spatial information signal, it is able to decode spatial information in case of reproducing the audio signal from a random point.

    摘要翻译: 提供了一种用于对音频信号进行编码和解码的方法和装置。 本发明包括接收包括音频描述符的音频信号,使用音频描述符识别音频信号包括降混信号和空间信息信号,以及使用空间信息信号将下混合信号转换为多声道信号,其中 空间信息信号包括每个预设的时间或空间间隔的报头,并且空间信息信号包括每个预设的时间或空间间隔的报头,从而可以将报头选择性地包括在空间信息信号中,并且如果报头被多个地包括在 空间信息信号,在从随机点再现音频信号的情况下能够对空间信息进行解码。

    Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal
    4.
    发明授权
    Method and apparatus for embedding spatial information and reproducing embedded signal for an audio signal 有权
    用于嵌入空间信息并再现用于音频信号的嵌入信号的方法和装置

    公开(公告)号:US08214220B2

    公开(公告)日:2012-07-03

    申请号:US11915555

    申请日:2006-05-26

    IPC分类号: G10L19/00

    摘要: An apparatus for encoding and decoding an audio signal and method thereof are disclosed, by which compatibility with a player of a general mono or stereo audio signal can be provided in coding an audio signal and by which spatial information for a multi-channel audio signal can be stored or transmitted without a presence of an auxiliary data area. The present invention includes extracting side information embedded in non-recognizable component of audio signal components and decoding the audio signal using the extracted side information.

    摘要翻译: 公开了一种用于对音频信号进行编码和解码的装置及其方法,通过该方法可以提供与普通单声道或立体声音频信号的播放器的兼容性,以便对音频信号进行编码,并且可以通过哪一个多声道音频信号的空间信息 被存储或传输而不存在辅助数据区。 本发明包括提取嵌入在音频信号分量的不可识别分量中的侧信息,并使用提取的侧信息对音频信号进行解码。

    Method and apparatus for processing a media signal
    5.
    发明授权
    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:US08208641B2

    公开(公告)日:2012-06-26

    申请号:US12161334

    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 spatial information and a downmix signal from a bitstream; and generating rendering information by using the spatial information and filter information having a surround effect, wherein the rendering information comprises first rendering information applied to one channel of the downmix signal extracted from the bitstream and then transmitted on the same channel and second rendering information applied to the channel and then transmitted on another channel.

    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。 本发明提供了一种处理信号的方法,该方法包括从比特流中提取空间信息和降混信号; 以及通过使用具有环绕效果的空间信息和滤波器信息来生成渲染信息,其中,所述渲染信息包括应用于从所述比特流提取的所述下混合信号的一个信道的第一呈现信息,然后在相同信道上发送,并且将第二呈现信息应用于 通道,然后在另一个通道上传输。

    Method and apparatus for processing an audio signal
    6.
    发明授权
    Method and apparatus for processing an audio signal 有权
    用于处理音频信号的方法和装置

    公开(公告)号:US07991495B2

    公开(公告)日:2011-08-02

    申请号:US12280323

    申请日:2007-02-16

    IPC分类号: G06F17/00

    摘要: A method for processing an audio signal, comprising the steps of extracting an ancillary signal for generating the audio signal and an extension signal included in the ancillary signal from a received bit stream, reading length information of the extension signal from an extension area of the ancillary signal, and generating the audio signal using the ancillary signal. Accordingly, in case of processing the audio signal by the present invention, it is able to reduce a corresponding load of operation to enable efficient processing and enhance a sound quality.

    摘要翻译: 一种用于处理音频信号的方法,包括以下步骤:从接收的比特流中提取用于生成音频信号的辅助信号和包括在辅助信号中的扩展信号,从辅助的扩展区域读取扩展信号的长度信息 信号,并使用辅助信号产生音频信号。 因此,在通过本发明处理音频信号的情况下,能够减少相应的操作负载以实现高效处理并提高声音质量。

    Method and apparatus for encoding/decoding multi-channel audio signal
    9.
    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。

    Apparatus and Method for Encoding/Decoding Signal
    10.
    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。