APPARATUS AND METHOD FOR BANDWIDTH EXTENSION FOR MULTI-CHANNEL AUDIO
    1.
    发明申请
    APPARATUS AND METHOD FOR BANDWIDTH EXTENSION FOR MULTI-CHANNEL AUDIO 有权
    多通道音频带宽扩展的装置和方法

    公开(公告)号:US20120070007A1

    公开(公告)日:2012-03-22

    申请号:US13232696

    申请日:2011-09-14

    IPC分类号: H04R5/00

    摘要: A method and apparatus of effectively encoding and decoding a high-frequency signal of a multi-channel audio are provided. A multi-channel audio decoding apparatus may down-mix a multi-channel audio input signal, expand a number of channels of the down-mixed signal, select at least one of the expanded channel signal, extract a parameter indicating a characteristic relation between the selected signal and the multi-channel audio input signal, and encode the down-mixed signal and the extracted parameter.

    摘要翻译: 提供了一种有效地对多声道音频的高频信号进行编码和解码的方法和装置。 多声道音频解码装置可以对多声道音频输入信号进行降混,扩大下混合信号的信道数,选择扩展信道信号中的至少一个,提取表示该信道的特征关系的参数 选择信号和多声道音频输入信号,并对下混合信号和提取的参数进行编码。

    Apparatus and method of encoding audio signal by switching frequency domain transformation scheme and time domain transformation scheme
    2.
    发明申请
    Apparatus and method of encoding audio signal by switching frequency domain transformation scheme and time domain transformation scheme 审中-公开
    通过切换频域变换方案和时域变换方案对音频信号进行编码的装置和方法

    公开(公告)号:US20110087494A1

    公开(公告)日:2011-04-14

    申请号:US12588297

    申请日:2009-10-09

    IPC分类号: G10L19/00

    摘要: Provided are an apparatus of encoding an audio signal by switching a time domain transformation scheme and a frequency domain transformation scheme, and an apparatus of decoding an audio signal by switching the time domain transformation scheme and the frequency domain transformation scheme. When any one transformation scheme of the time domain transformation scheme and the frequency domain transformation is switched into the other transformation scheme, an audio signal before and after the switching is encoded using an additionally transformed audio signal, or an encoded audio signal is decoded.

    摘要翻译: 提供了一种通过切换时域变换方案和频域变换方案对音频信号进行编码的装置,以及通过切换时域变换方案和频域变换方案对音频信号进行解码的装置。 当时域变换方案和频域变换的任何一个变换方案被切换到另一变换方案时,使用附加变换的音频信号对切换之前和之后的音频信号进行编码,或对编码的音频信号进行解码。

    Apparatus and method for encoding and decoding multi-channel signal
    3.
    发明申请
    Apparatus and method for encoding and decoding multi-channel signal 有权
    多通道信号编码和解码的装置和方法

    公开(公告)号:US20100241436A1

    公开(公告)日:2010-09-23

    申请号:US12659696

    申请日:2010-03-17

    IPC分类号: G10L21/00

    CPC分类号: G10L19/008

    摘要: Provided are an encoding apparatus and a decoding apparatus of a multi-channel signal. The encoding apparatus of the multi-channel signal may process a phase parameter associated with phase information between a plurality of channels constituting the multi-channel signal, based on a characteristic of the multi-channel signal. The encoding apparatus may generate an encoded bitstream with respect to the multi-channel signal using the processed phase parameter and a mono signal extracted from the multi-channel signal.

    摘要翻译: 提供了一种多信道信号的编码装置和解码装置。 多声道信号的编码装置可以基于多声道信号的特性来处理与构成多声道信号的多个声道之间的相位信息相关联的相位参数。 编码装置可以使用经处理的相位参数和从多声道信号提取的单声道信号来生成关于多声道信号的编码比特流。