Multi-channel audio decoding method and apparatus therefor
    3.
    发明授权
    Multi-channel audio decoding method and apparatus therefor 有权
    多声道音频解码方法及其装置

    公开(公告)号:US08433584B2

    公开(公告)日:2013-04-30

    申请号:US12693990

    申请日:2010-01-26

    IPC分类号: G10L21/00

    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。

    Decoding method and decoding apparatus therefor
    4.
    发明授权
    Decoding method and decoding apparatus therefor 有权
    解码方法及其解码装置

    公开(公告)号:US08762158B2

    公开(公告)日:2014-06-24

    申请号:US13198763

    申请日:2011-08-05

    CPC分类号: G10L19/0204

    摘要: A method and apparatus for generating synthesis audio signals are provided. The method includes decoding a bitstream; splitting the decoded bitstream into n sub-band signals; generating n transformed sub-band signals by transforming the n sub-band signals in a frequency domain; and generating synthesis audio signals by respectively multiplying the n transformed sub-band signals by values corresponding to synthesis filter bank coefficients.

    摘要翻译: 提供了一种用于产生合成音频信号的方法和装置。 该方法包括对比特流进行解码; 将解码的比特流分解成n个子带信号; 通过在频域中变换n个子带信号来产生n个变换的子带信号; 以及通过分别将n个经变换的子带信号乘以与合成滤波器组系数相对应的值来产生合成音频信号。

    Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data
    6.
    发明授权
    Apparatus and method for transmitting digital multimedia broadcasting data, and method and apparatus for receiving digital multimedia broadcasting data 有权
    用于发送数字多媒体广播数据的装置和方法,以及用于接收数字多媒体广播数据的方法和装置

    公开(公告)号:US08619996B2

    公开(公告)日:2013-12-31

    申请号:US12858677

    申请日:2010-08-18

    IPC分类号: H04H20/47

    摘要: Provided are a method and apparatus for transmitting digital multimedia broadcasting data, and a method and apparatus for receiving digital multimedia broadcasting data. A basic audio signal and a multichannel audio signal are encoded to generate a basic audio stream and a multichannel audio stream, and a first data stream describing property and position data of the basic audio stream and a second data stream describing property and position data of the multichannel audio stream are transmitted as independent streams. According to the performance of the receiving apparatus, an audio signal may be decoded by using just the first data stream only or both the first data stream and the second stream.

    摘要翻译: 提供一种用于发送数字多媒体广播数据的方法和装置,以及用于接收数字多媒体广播数据的方法和装置。 编码基本音频信号和多声道音频信号以生成基本音频流和多声道音频流,以及描述基本音频流的属性和位置数据的第一数据流以及描述基本音频流的属性和位置数据的第二数据流 多声道音频流作为独立流传输。 根据接收装置的性能,可以仅使用第一数据流或第一数据流和第二流二者来解码音频信号。