Apparatus and method for processing multi-channel audio signal using space information
    11.
    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:US07961889B2

    公开(公告)日:2011-06-14

    申请号:US11210908

    申请日:2005-08-25

    IPC分类号: H04R5/00

    摘要: 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.

    摘要翻译: 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。

    Method, medium, and system generating a stereo signal
    12.
    发明申请
    Method, medium, and system generating a stereo signal 有权
    方法,介质和系统产生立体声信号

    公开(公告)号:US20070223709A1

    公开(公告)日:2007-09-27

    申请号:US11707989

    申请日:2007-02-20

    IPC分类号: H04R5/00 H04B1/00

    摘要: Surround audio decoding for selectively generating an audio signal from a multi-channel signal. In the surround audio decoding, a down-mixed signal, e.g., as down-mixed by an encoding terminal, is selectively up-mixed to a stereo signal or a multi-channel signal, by generating spatial information for generating the stereo signal, using spatial information for up-mixing the down-mixed signal to the multi-channel signal.

    摘要翻译: 环绕音频解码,用于从多声道信号选择性地产生音频信号。 在环绕音频解码中,通过生成用于产生立体声信号的空间信息,例如通过编码终端下混合的下混合信号被选择性地上混为立体声信号或多声道信号,使用 用于将下混合信号上混合到多声道信号的空间信息。

    System, medium, and method of encoding/decoding multi-channel audio signals
    14.
    发明授权
    System, medium, and method of encoding/decoding multi-channel audio signals 有权
    多声道音频信号编码/解码的系统,媒介和方法

    公开(公告)号:US09100039B2

    公开(公告)日:2015-08-04

    申请号:US13599147

    申请日:2012-08-30

    摘要: An system, method, and method of encoding/decoding a multi-channel audio signal, including a decoding level generation unit producing decoding-level information that helps a bitstream including a number of audio channel signals and space information to be decoded into a number of audio channel signals, wherein the space information includes information about magnitude differences and/or similarities between channels, and an audio decoder decoding the bitstream according to the decoding-level information. Accordingly, even a single input bitstream can be decoded into a suitable number of channels depending on the type of a speaker configuration used. Scalable channel decoding can be achieved by partially decoding an input bitstream. In the scalable channel decoding, a decoder may set decoding levels and outputs audio channel signals according to the decoding levels, thereby reducing decoding complexity.

    摘要翻译: 一种对多声道音频信号进行编码/解码的系统,方法和方法,包括解码级产生单元,其产生解码级信息,该解码级信息有助于将包含多个音频信道信号和空间信息的比特流解码为多个 音频信道信号,其中所述空间信息包括关于信道之间的幅度差异和/或相似性的信息,以及根据所述解码级别信息对所述比特流进行解码的音频解码器。 因此,即使单个输入比特流也可以根据所使用的扬声器配置的类型被解码为适当数量的信道。 可以通过对输入比特流进行部分解码来实现可扩展的信道解码。 在可扩展信道解码中,解码器可以根据解码电平设置解码电平并输出音频信道信号,从而降低解码复杂度。

    Method, medium, and apparatus with scalable channel decoding
    17.
    发明申请
    Method, medium, and apparatus with scalable channel decoding 有权
    方法,媒介和具有可扩展信道解码的装置

    公开(公告)号:US20070233296A1

    公开(公告)日:2007-10-04

    申请号:US11652031

    申请日:2007-01-11

    IPC分类号: G06F17/00

    CPC分类号: G10L19/24 G10L19/008

    摘要: A method, medium, and apparatus with scalable channel decoding. The method includes recognizing the configuration of channels or speakers, calculating the number of decoding levels for each multi-channel signal using the recognized configuration of the channels or speakers, and performing decoding and up-mixing according to the calculated number of decoding levels.

    摘要翻译: 具有可扩展信道解码的方法,介质和装置。 该方法包括识别通道或扬声器的配置,使用识别的通道或扬声器的配置来计算每个多声道信号的解码电平的数量,以及根据所计算的解码电平的数量进行解码和上混合。

    Bit-stream processing/transmitting and/or receiving/processing method, medium, and apparatus
    18.
    发明授权
    Bit-stream processing/transmitting and/or receiving/processing method, medium, and apparatus 有权
    位流处理/发送和/或接收/处理方法,介质和装置

    公开(公告)号:US08212693B2

    公开(公告)日:2012-07-03

    申请号:US11546435

    申请日:2006-10-12

    申请人: Junghoe Kim Eunmi Oh

    发明人: Junghoe Kim Eunmi Oh

    IPC分类号: H03M7/00

    摘要: A method, medium, and apparatus hierarchically coding/decoding audio data, such as bit sliced arithmetic coding (BSAC), such that payloads of audio data and extension data can be grouped and interleaved according to priority so that some groups of the payloads are dropped, and the remainder of groups are transmitted. Therefore, extension data that is more important than a top layer of audio data, in terms of reproducing of original sounds, can be transmitted with priority.

    摘要翻译: 一种分层编码/解码音频数据(诸如位分片算术编码(BSAC))的方法,介质和装置,使得可以根据优先级对音频数据和扩展数据的有效载荷进行分组和交织,以使一些有效载荷组被丢弃 ,并且传送组的其余部分。 因此,就再现原始声音而言,比顶层音频数据更重要的扩展数据可以优先发送。

    Method and apparatus to quantize and dequantize input signal, and method and apparatus to encode and decode input signal
    19.
    发明申请
    Method and apparatus to quantize and dequantize input signal, and method and apparatus to encode and decode input signal 失效
    用于量化和去量化输入信号的方法和装置,以及对输入信号进行编码和解码的方法和装置

    公开(公告)号:US20070229345A1

    公开(公告)日:2007-10-04

    申请号:US11581331

    申请日:2006-10-17

    IPC分类号: H03M3/00 H04N7/26

    CPC分类号: H04N19/126 G10L19/035

    摘要: A method and apparatus to quantize and dequantize an input signal, and a method and apparatus to encode and decode an input signal. The method of quantizing an input signal includes determining a quantization scale type according to a distribution feature of the input signal, and quantizing the input signal according to the determined quantization scale type. Accordingly, when a number of assigned bits is small in an encoding process, signal distortion can be minimized without an increase in complexity or having to use large sized additional information in order to determine an optimum scale. In addition, the input signal can be encoded by considering a trade-off of a distortion rate corresponding to the number of assigned bits of the input signal.

    摘要翻译: 用于量化和去量化输入信号的方法和装置,以及对输入信号进行编码和解码的方法和装置。 量化输入信号的方法包括根据输入信号的分布特征确定量化尺度类型,并根据确定的量化比例类型量化输入信号。 因此,当编码处理中的多个分配比特小时,可以最小化信号失真,而不增加复杂度,或者必须使用大尺寸附加信息以便确定最佳比例。 此外,可以通过考虑与输入信号的分配位数相对应的失真率的权衡来编码输入信号。

    ADAPTIVE TIME/FREQUENCY-BASED AUDIO ENCODING AND DECODING APPARATUSES AND METHODS
    20.
    发明申请
    ADAPTIVE TIME/FREQUENCY-BASED AUDIO ENCODING AND DECODING APPARATUSES AND METHODS 有权
    自适应时间/频率的音频编码和解码设备和方法

    公开(公告)号:US20070106502A1

    公开(公告)日:2007-05-10

    申请号:US11535164

    申请日:2006-09-26

    IPC分类号: G10L11/04

    CPC分类号: G10L19/12 G10L19/02 G10L19/20

    摘要: 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.

    摘要翻译: 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。