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    • 22. 发明授权
    • Method and apparatus for processing a media signal
    • 用于处理媒体信号的方法和装置
    • US08208641B2
    • 2012-06-26
    • US12161334
    • 2007-01-19
    • Hyen-O OhHee Suk PangDong Soo KimJae Hyun LimYang-Won Jung
    • Hyen-O OhHee Suk PangDong Soo KimJae Hyun LimYang-Won Jung
    • H04R5/00
    • H04S3/02G10L19/008H04S1/007H04S2400/15H04S2420/01
    • 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.
    • 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。
    • 26. 发明授权
    • Method and apparatus for encoding/decoding multi-channel audio signal
    • 用于对多声道音频信号进行编码/解码的方法和装置
    • US07719445B2
    • 2010-05-18
    • US12088424
    • 2006-09-27
    • Yang-Won JungHee Suk PangHyen-O OhDong Soo KimJae Hyun Lim
    • Yang-Won JungHee Suk PangHyen-O OhDong Soo KimJae Hyun Lim
    • H03M7/00
    • G10L19/032G10L19/008
    • 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.
    • 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。
    • 27. 发明申请
    • Apparatus and Method for Encoding/Decoding Signal
    • 用于编码/解码信号的装置和方法
    • US20090010440A1
    • 2009-01-08
    • US12278568
    • 2007-02-07
    • Yang-Won JungHee Suk PangHyen-O OhDong Soo KimJae Hyun Lim
    • Yang-Won JungHee Suk PangHyen-O OhDong Soo KimJae Hyun Lim
    • H04R5/00G10L19/00
    • G10L19/008G10L19/167G10L19/24H04S3/008H04S2420/01H04S2420/03
    • 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.
    • 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。