Apparatus and method for processing multi-channel audio signal using space information
    15.
    发明授权
    Apparatus and method for processing multi-channel audio signal using space information 有权
    使用空间信息处理多声道音频信号的装置和方法

    公开(公告)号:US09552820B2

    公开(公告)日:2017-01-24

    申请号:US14965994

    申请日:2015-12-11

    Abstract: An apparatus for and a method of processing a multi-channel audio signal using space information. The apparatus includes: a main coding unit down mixing a multi-channel audio signal by applying space information to surround components included in the multi-channel audio signal, generating side information using the multi-channel audio signal or a stereo signal of a down-mixed result, coding the stereo signal and the side information, and transmitting the coded result as a coding signal; and a main decoding unit receiving the coding signal, decoding the stereo signal and the side information using the received coding signal, up mixing the decoded stereo signal using the decoded side information, and restoring the multi-channel audio signal.

    Abstract translation: 一种使用空间信息处理多声道音频信号的装置和方法。 该装置包括:主编码单元,通过将包含在多声道音频信号中的包围成分的空间信息应用于多声道音频信号,使用多声道音频信号产生侧信息或下行信号的立体声信号, 混合结果,对立体声信号和侧信息进行编码,并将编码结果作为编码信号发送; 以及主解码单元,接收编码信号,使用接收的编码信号对立体声信号和侧信息进行解码,使用解码的侧信息进行解码的立体声信号的混合,以及恢复多声道音频信号。

    Apparatus and method for encoding/decoding multichannel signal

    公开(公告)号:US09384743B2

    公开(公告)日:2016-07-05

    申请号:US14623431

    申请日:2015-02-16

    CPC classification number: G10L19/008

    Abstract: An apparatus and method for encoding/decoding a multi-channel signal may be provided. The apparatus of encoding a multi-channel signal may insert information about whether to encode a phase parameter indicating phase information of a plurality of channels, included in the multi-channel signal, in a bitstream of the multi-channel signal. The apparatus of decoding a multi-channel signal may determine whether to up-mix a mono signal using the phase parameter based on the information about whether to encode.

    Adaptive time/frequency-based audio encoding and decoding apparatuses and methods
    18.
    发明授权
    Adaptive time/frequency-based audio encoding and decoding apparatuses and methods 有权
    自适应时间/频率音频编码和解码装置和方法

    公开(公告)号:US08862463B2

    公开(公告)日:2014-10-14

    申请号:US14041324

    申请日:2013-09-30

    CPC classification number: G10L19/12 G10L19/02 G10L19/20

    Abstract: Adaptive time/frequency-based audio encoding and decoding apparatuses and methods. The encoding apparatus includes a transformation & mode determination unit to divide an input audio signal into a plurality of frequency-domain signals and to select a time-based encoding mode or a frequency-based encoding mode for each respective frequency-domain signal, an encoding unit to encode each frequency-domain signal in the respective encoding mode, and a bitstream output unit to output encoded data, division information, and encoding mode information for each respective frequency-domain signal. In the apparatuses and methods, acoustic characteristics and a voicing model are simultaneously applied to a frame, which is an audio compression processing unit. As a result, a compression method effective for both music and voice can be produced, and the compression method can be used for mobile terminals that require audio compression at a low bit rate.

    Abstract translation: 自适应时间/频率音频编码和解码装置和方法。 编码装置包括:变换和模式确定单元,用于将输入音频信号分成多个频域信号,并且为每个相应的频域信号选择基于时间的编码模式或基于频率的编码模式,编码 单元,用于对各个编码模式中的每个频域信号进行编码,以及比特流输出单元,用于输出每个各个频域信号的编码数据,分割信息和编码模式信息。 在装置和方法中,声音特性和语音模型被同时应用于作为音频压缩处理单元的帧。 结果,可以产生对音乐和语音有效的压缩方法,并且压缩方法可以用于需要低比特率的音频压缩的移动终端。

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