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    • 1. 发明申请
    • Device for Perceptual Weighting in Audio Encoding/Decoding
    • 音频编码/解码中感知加权的设备
    • US20090076829A1
    • 2009-03-19
    • US12279493
    • 2007-02-07
    • Stephane RagotRomain Trilling
    • Stephane RagotRomain Trilling
    • G10L19/00
    • G10L19/24G10L19/0208
    • A hierarchical audio coder for use in a frequency band divided into adjacent first and second sub-bands, said coder comprising: a core coder (305) for coding an original signal in the first sub-band of said frequency band; a stage (306) for calculating a residual signal (e) from said original signal and the signal from said core coder; a device (307) for perceptually weighting said residual signal (e). The perceptual weighting device includes a perceptually weighted filter (307) with gain compensation adapted to realize spectral continuity between the output signal of said perceptually weighted filter with gain compensation and the signal in the second sub-band. Application to transmitting and storing digital signals, such as audio-frequency speech, music, etc. signals.
    • 一种分级音频编码器,用于分成相邻的第一和第二子频带的频带,所述编码器包括:核心编码器,用于对所述频带的第一子带中的原始信号进行编码; 用于从所述原始信号和来自所述核心编码器的信号计算残差信号(e)的级(306) 用于感知地加权所述残余信号(e)的装置(307)。 感知加权装置包括具有增益补偿的感知加权滤波器(307),其适于实现具有增益补偿的所述感知加权滤波器的输出信号与第二子带中的信号之间的频谱连续性。 应用于数字信号的发送和存储,如音频语音,音乐等信号。
    • 3. 发明申请
    • Coding/Decoding of a Digital Audio Signal, in Celp Technique
    • 数字音频信号的编码/解码,Celp技术
    • US20090222273A1
    • 2009-09-03
    • US12224205
    • 2007-02-13
    • Dominique MassalouxRomain TrillingClaude Lamblin
    • Dominique MassalouxRomain TrillingClaude Lamblin
    • G10L21/00
    • G10L19/10G10L2019/0007
    • The invention aims at constructing improved dictionaries of CELP excitation vectors for coding/decoding digital audio signals. Usually, each vector of dimension N comprises pulses capable of occupying N valid positions. The invention concerns the construction of dictionaries with particular structure by: providing a common sequence of pulses forming a base pattern; and assigning the base pattern to each excitation vector of the dictionary, based on one or more occurrences at one or more respective positions among said N valid positions. The invention also concerns a combination of dictionaries thus constructed with optionally standard multipulse dictionaries, by union or summation or cascading.
    • 本发明旨在构建用于对数字音频信号进行编码/解码的CELP激励矢量的改进词典。 通常,尺寸N的每个矢量包括能够占据N个有效位置的脉冲。 本发明涉及具有特定结构的字典的构造,其通过以下方式提供:形成基本图案的公共脉冲序列; 以及基于所述N个有效位置中的一个或多个相应位置处的一个或多个出现,将所述基本模式分配给所述字典的每个激励矢量。 本发明还涉及通过联合或求和或级联组合使用如此构建的词典与可选地标准的多脉冲词典的组合。
    • 5. 发明授权
    • Device for perceptual weighting in audio encoding/decoding
    • 音频编码/解码中感知加权的设备
    • US08260620B2
    • 2012-09-04
    • US12279493
    • 2007-02-07
    • Stéphane RagotRomain Trilling
    • Stéphane RagotRomain Trilling
    • G10L19/00G10L19/14
    • G10L19/24G10L19/0208
    • A hierarchical audio coder for use in a frequency band divided into adjacent first and second sub-bands, the coder including: a core coder (305) for coding an original signal in the first sub-band of the frequency band; a stage (306) for calculating a residual signal (e) from the original signal and the signal from the core coder; a device (307) for perceptually weighting the residual signal (e). The perceptual weighting device includes a perceptually weighted filter (307) with gain compensation adapted to realize spectral continuity between the output signal of the perceptually weighted filter with gain compensation and the signal in the second sub-band. Application to transmitting and storing digital signals, such as audio-frequency speech, music, etc. signals.
    • 一种分级音频编码器,用于分成相邻的第一和第二子频带的频带中,编码器包括:用于对频带的第一子带中的原始信号进行编码的核心编码器(305) 用于从原始信号和来自核心编码器的信号计算残余信号(e)的级(306); 用于感知地加权残余信号(e)的装置(307)。 感知加权装置包括具有增益补偿的感知加权滤波器(307),其适于实现具有增益补偿的感知加权滤波器的输出信号与第二子带中的信号之间的频谱连续性。 应用于数字信号的发送和存储,如音频语音,音乐等信号。
    • 6. 发明授权
    • Coding/decoding of a digital audio signal, in CELP technique
    • CELP技术对数字音频信号进行编码/解码
    • US08271274B2
    • 2012-09-18
    • US12224205
    • 2007-02-13
    • Dominique MassalouxRomain TrillingClaude Lamblin
    • Dominique MassalouxRomain TrillingClaude Lamblin
    • G10L21/00
    • G10L19/10G10L2019/0007
    • The invention aims at constructing improved dictionaries of CELP excitation vectors for coding/decoding digital audio signals. Usually, each vector of dimension N comprises pulses capable of occupying N valid positions. The invention concerns the construction of dictionaries with particular structure by: providing a common sequence of pulses forming a base pattern; and assigning the base pattern to each excitation vector of the dictionary, based on one or more occurrences at one or more respective positions among said N valid positions. The invention also concerns a combination of dictionaries thus constructed with optionally standard multipulse dictionaries, by union or summation or cascading.
    • 本发明旨在构建用于对数字音频信号进行编码/解码的CELP激励矢量的改进词典。 通常,尺寸N的每个矢量包括能够占据N个有效位置的脉冲。 本发明涉及具有特定结构的字典的构造,其通过以下方式提供:形成基本图案的公共脉冲序列; 以及基于所述N个有效位置中的一个或多个相应位置处的一个或多个出现,将所述基本模式分配给所述字典的每个激励矢量。 本发明还涉及通过联合或求和或级联组合使用如此构建的词典与可选地标准的多脉冲词典的组合。