METHOD OF CONFIGURING CODEC AND CODEC USING THE SAME
    1.
    发明申请
    METHOD OF CONFIGURING CODEC AND CODEC USING THE SAME 审中-公开
    使用该编码器和编码器配置编码器的方法

    公开(公告)号:US20090006104A1

    公开(公告)日:2009-01-01

    申请号:US11954111

    申请日:2007-12-11

    IPC分类号: G10L19/00 H03M7/38

    CPC分类号: G10L19/22

    摘要: Provided is a codec that may be configured to adaptively optimize to various service environments by obtaining information on a current operating environment of the codec and configuring the codec in view of quality of service (QoS) parameters based on the obtained information.

    摘要翻译: 提供了一种编解码器,其可以被配置为通过获得关于编解码器的当前操作环境的信息并且基于所获得的信息来配置针对服务质量(QoS)参数的编解码器来自适应地优化到各种服务环境。

    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same
    3.
    发明授权
    Error concealment method and apparatus for audio signal and decoding method and apparatus for audio signal using the same 有权
    用于音频信号的错误隐藏方法和装置以及使用其的音频信号的解码方法和装置

    公开(公告)号:US08219393B2

    公开(公告)日:2012-07-10

    申请号:US11930752

    申请日:2007-10-31

    IPC分类号: G10L21/00

    摘要: An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

    摘要翻译: 一种用于音频信号的错误隐藏方法和装置,以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。 错误隐藏方法包括:当在当前帧中发生错误时,基于预定标准,选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案,选择 重复方案和在频域中的内插方案作为当前帧的错误隐藏方案,当选择频域中的错误隐藏时,基于预定标准,并且使用所选择的方案来隐藏当前帧的错误。

    Method, medium, and apparatus encoding scalable wideband audio signal
    4.
    发明申请
    Method, medium, and apparatus encoding scalable wideband audio signal 有权
    方法,介质和装置编码可伸缩的宽带音频信号

    公开(公告)号:US20090094023A1

    公开(公告)日:2009-04-09

    申请号:US12076781

    申请日:2008-03-21

    IPC分类号: G10L19/00

    CPC分类号: G10L19/12 G10L19/24

    摘要: Provided is a method and apparatus for encoding a scalable wideband audio signal, the method including: filtering a voiced signal by performing linear prediction on the voiced signal and modulating the filtered signal; encoding the modulated signal in the time domain, and outputting a core layer encoding result of the voiced signal; subtracting a signal obtained by decoding the core layer encoding result from the modulated signal and outputting an error signal; and encoding the error signal and outputting an enhancement layer encoding result of the voiced signal.

    摘要翻译: 提供了一种用于对可伸缩宽带音频信号进行编码的方法和装置,该方法包括:通过对有声信号执行线性预测和调制滤波后的信号来对有声信号进行滤波; 在时域中对调制信号进行编码,并输出有声信号的核心层编码结果; 减去从调制信号中解码核心层编码结果而得到的信号,并输出误差信号; 并对误差信号进行编码并输出有声信号的增强层编码结果。

    METHOD AND APPARATUS TO CONCEAL ERROR IN DECODED AUDIO SIGNAL
    5.
    发明申请
    METHOD AND APPARATUS TO CONCEAL ERROR IN DECODED AUDIO SIGNAL 有权
    解码音频信号中的隐含错误的方法和装置

    公开(公告)号:US20070271480A1

    公开(公告)日:2007-11-22

    申请号:US11749249

    申请日:2007-05-16

    IPC分类号: G06F11/00

    CPC分类号: G10L19/005

    摘要: A method and apparatus to decode audio data constructed with a plurality of layers. An error concealment method of process a decoded bitstream selects one of a frequency domain and a time domain in order to conceal the errors, detects a position where the errors exist in a frame when the error concealment method in the frequency domain is selected, and conceals the errors only in a segment after the detected position.

    摘要翻译: 一种解码由多层构成的音频数据的方法和装置。 处理解码比特流的错误隐藏方法选择频域和时域中的一个以隐藏错误,当选择频域中的错误隐藏方法时,检测在帧中存在错误的位置,并且隐藏 检测到位置之后的错误。

    ERROR CONCEALMENT METHOD AND APPARATUS FOR AUDIO SIGNAL AND DECODING METHOD AND APPARATUS FOR AUDIO SIGNAL USING THE SAME
    7.
    发明申请
    ERROR CONCEALMENT METHOD AND APPARATUS FOR AUDIO SIGNAL AND DECODING METHOD AND APPARATUS FOR AUDIO SIGNAL USING THE SAME 有权
    用于音频信号和解码方法的错误接收方法和装置以及使用该信号的音频信号的装置

    公开(公告)号:US20120278089A1

    公开(公告)日:2012-11-01

    申请号:US13544203

    申请日:2012-07-09

    IPC分类号: G10L19/00

    摘要: An error concealment method and apparatus for an audio signal and a decoding method and apparatus for an audio signal using the error concealment method and apparatus. The error concealment method includes selecting one of an error concealment in a frequency domain and an error concealment in a time domain as an error concealment scheme for a current frame based on a predetermined criteria when an error occurs in the current frame, selecting one of a repetition scheme and an interpolation scheme in the frequency domain as the error concealment scheme for the current frame based on a predetermined criteria when the error concealment in the frequency domain is selected, and concealing the error of the current frame using the selected scheme.

    摘要翻译: 一种用于音频信号的错误隐藏方法和装置,以及使用错误隐藏方法和装置的用于音频信号的解码方法和装置。 错误隐藏方法包括:当在当前帧中发生错误时,基于预定标准,选择频域中的错误隐藏和时域中的错误隐藏中的一个作为当前帧的错误隐藏方案,选择 重复方案和在频域中的内插方案作为当前帧的错误隐藏方案,当选择频域中的错误隐藏时,基于预定标准,并且使用所选择的方案来隐藏当前帧的错误。

    Method, medium, and system scalably encoding/decoding audio/speech
    8.
    发明授权
    Method, medium, and system scalably encoding/decoding audio/speech 有权
    方法,媒体和系统可扩展地编码/解码音频/语音

    公开(公告)号:US08285555B2

    公开(公告)日:2012-10-09

    申请号:US11984686

    申请日:2007-11-20

    IPC分类号: G10L19/00

    CPC分类号: G10L19/24

    摘要: A method, medium, and system scalably encoding/decoding audio/speech. The method includes splitting an input signal into a low frequency band signal that is lower than a predetermined frequency and a high frequency band signal that is higher than the predetermined frequency, scalably encoding the split low frequency band signal into a core layer and one or more extension layers and then decoding the encoded core layer and the encoded extension layers, generating an error signal by using the split low frequency band signal and a decoded signal of the encoded core layer and the encoded extension layers, and encoding the error signal and the high frequency band signal into a signal-to-noise ratio (SNR) enhancement layer and a bandwidth extension layer.

    摘要翻译: 一种方法,媒体和系统可扩展地编码/解码音频/语音。 该方法包括将输入信号分成低于预定频率的低频带信号和高于预定频率的高频带信号,将分割的低频带信号可扩展地编码为核心层和一个或多个 扩展层,然后对编码的核心层和编码的扩展层进行解码,通过使用分割的低频带信号和编码的核心层和经编码的扩展层的解码信号产生误差信号,并对误差信号和高 频带信号转换成信噪比(SNR)增强层和带宽扩展层。

    Apparatus and method of wideband decoding to synthesize a decoded excitation signal with a generated high frequency band signal
    9.
    发明授权
    Apparatus and method of wideband decoding to synthesize a decoded excitation signal with a generated high frequency band signal 失效
    宽带解码的装置和方法,用于产生高频带信号来合成解码的激励信号

    公开(公告)号:US07498959B2

    公开(公告)日:2009-03-03

    申请号:US11766322

    申请日:2007-06-21

    IPC分类号: H03M7/12

    CPC分类号: G10L19/0208 G10L21/038

    摘要: Encoding and/or decoding a wideband signal produces high frequency band spectra from low frequency band spectral information. Linear prediction filter coefficients are determined for the entire wideband spectrum of an input signal. An energy value in each of a plurality of sub-bands in the high frequency band is determined and encoded. The short-term correlation removed input signal is then down-sampled to form a low frequency band signal. At a decoder, the high frequency band signal is generated using the encoded low frequency band signal. The energy in each sub-band of the high frequency band is adjusted using the encoded energy value. Thus, the spectral envelope for the entire wideband signal is synthesized and decoded using linear predictive synthesis.

    摘要翻译: 编码和/或解码宽带信号从低频带频谱信息产生高频带频谱。 对于输入信号的整个宽带谱确定线性预测滤波器系数。 确定并编码高频带中的多个子带中的每一个中的能量值。 然后将短期相关去除输入信号进行下采样以形成低频带信号。 在解码器处,使用编码的低频带信号产生高频带信号。 使用编码的能量值来调整高频带的每个子带中的能量。 因此,使用线性预测合成来合成和解码整个宽带信号的频谱包络。