Method, medium, and apparatus with scalable channel decoding
    1.
    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。

    ADAPTIVE TIME/FREQUENCY-BASED AUDIO ENCODING AND DECODING APPARATUSES AND METHODS
    3.
    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。

    Method, medium, and system for generating a stereo signal
    4.
    发明授权
    Method, medium, and system for generating a stereo signal 有权
    用于产生立体声信号的方法,媒体和系统

    公开(公告)号:US09087511B2

    公开(公告)日:2015-07-21

    申请号:US11707989

    申请日:2007-02-20

    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。

    Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream
    10.
    发明申请
    Scalable audio data arithmetic decoding method, medium, and apparatus, and method, medium, and apparatus truncating audio data bitstream 有权
    可缩放音频数据算术解码方法,媒体和装置以及截取音频数据比特流的方法,媒体和装置

    公开(公告)号:US20060284748A1

    公开(公告)日:2006-12-21

    申请号:US11330168

    申请日:2006-01-12

    IPC分类号: H03M7/34

    摘要: A scalable audio data arithmetic decoding method, medium, and apparatus, and a method, medium, and apparatus truncating an audio data bitstream. The arithmetic decoding method of decoding a scalable arithmetic coded symbol may include arithmetic decoding of a symbol by using the symbol and a probability value for the symbol desired to be decoded, and determining whether or not to continue decoding by checking an ambiguity indicating whether or not decoding of the symbol to be decoded is completed. According to a method, medium, and apparatus of the present invention, data to which scalability is applied when arithmetic coding is performed in MPEG-4 scalable lossless audio coding can be efficiently decoded. Even when a bitstream is truncated, a decoding termination point can be known such that additional decoding of the truncated part can be performed.

    摘要翻译: 可扩展音频数据算术解码方法,介质和装置,以及截取音频数据比特流的方法,介质和装置。 对可缩放算术编码符号进行解码的算术解码方法可以包括通过使用符号和期望解码的符号的概率值对符号进行算术解码,并且通过检查指示是否进行歧义来确定是否继续解码 要解码的符号的解码完成。 根据本发明的方法,介质和装置,可以有效地解码在MPEG-4可伸缩无损音频编码中执行算术编码时应用可扩展性的数据。 即使当比特流被截断时,可以知道解码终止点,使得可以执行对截断部分的附加解码。