利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

67 条记录 (耗时 0.029 秒)

    Multi-mode audio encoder and audio decoder with spectral shaping in a linear prediction mode and in a frequency-domain mode
    1.
    发明授权
    Multi-mode audio encoder and audio decoder with spectral shaping in a linear prediction mode and in a frequency-domain mode 有权
    具有线性预测模式和频域模式的频谱整形的多模式音频编码器和音频解码器

    公开(公告)号：US08744863B2

    公开(公告)日：2014-06-03

    申请号：US13441469

    申请日：2012-04-06

    申请人： Max Neuendorf ,  Guillaume Fuchs ,  Nikolaus Rettelbach ,  Tom Baeckstroem ,  Jeremie Lecomte ,  Juergen Herre

    发明人： Max Neuendorf ,  Guillaume Fuchs ,  Nikolaus Rettelbach ,  Tom Baeckstroem ,  Jeremie Lecomte ,  Juergen Herre

    IPC分类号： G10L19/00

    CPC分类号： G10L19/20 ,  G10L19/022

    摘要： A multi-mode audio signal decoder has a spectral value determinator to obtain sets of decoded spectral coefficients for a plurality of portions of an audio content and a spectrum processor configured to apply a spectral shaping to a set of spectral coefficients in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in a linear-prediction mode, and in dependence on a set of scale factor parameters for a portion of the audio content encoded in a frequency-domain mode. The audio signal decoder has a frequency-domain-to-time-domain converter configured to obtain a time-domain audio representation on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode and for a portion of the audio content encoded in the frequency domain mode. An audio signal encoder is also described.

    摘要翻译： 多模式音频信号解码器具有频谱值确定器，以获得用于音频内容的多个部分的解码频谱系数集合;以及频谱处理器，被配置为将频谱整形应用于一组频谱系数 用于以线性预测模式编码的音频内容的一部分的线性预测域参数，并且依赖于以频域模式编码的音频内容的一部分的一组比例因子参数。 音频信号解码器具有频域 - 时域转换器，其被配置为基于频谱形式的解码频谱系数集来获得时域音频表示，所述解码频谱系数被编码在线性 - 预测模式和频域模式中编码的音频内容的一部分。 还描述了音频信号编码器。

    MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING
    2.
    发明申请
    MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING 有权
    多模式音频信号解码器，多模式音频信号编码器，使用基于线性预测编码的噪声形状的方法和计算机程序

    公开(公告)号：US20120245947A1

    公开(公告)日：2012-09-27

    申请号：US13441469

    申请日：2012-04-06

    申请人： Max Neuendorf ,  Guillaume Fuchs ,  Nikolaus Rettelbach ,  Tom Baeckstroem ,  Jeremie Lecomte ,  Juergen Herre

    发明人： Max Neuendorf ,  Guillaume Fuchs ,  Nikolaus Rettelbach ,  Tom Baeckstroem ,  Jeremie Lecomte ,  Juergen Herre

    IPC分类号： G10L19/00

    CPC分类号： G10L19/20 ,  G10L19/022

    摘要： A multi-mode audio signal decoder has a spectral value determinator to obtain sets of decoded spectral coefficients for a plurality of portions of an audio content and a spectrum processor configured to apply a spectral shaping to a set of spectral coefficients in dependence on a set of linear-prediction-domain parameters for a portion of the audio content encoded in a linear-prediction mode, and in dependence on a set of scale factor parameters for a portion of the audio content encoded in a frequency-domain mode. The audio signal decoder has a frequency-domain-to-time-domain converter configured to obtain a time-domain audio representation on the basis of a spectrally-shaped set of decoded spectral coefficients for a portion of the audio content encoded in the linear-prediction mode and for a portion of the audio content encoded in the frequency domain mode. An audio signal encoder is also described.

    摘要翻译： 多模式音频信号解码器具有频谱值确定器，以获得用于音频内容的多个部分的解码频谱系数集合;以及频谱处理器，被配置为将频谱整形应用于一组频谱系数 用于以线性预测模式编码的音频内容的一部分的线性预测域参数，并且依赖于以频域模式编码的音频内容的一部分的一组比例因子参数。 音频信号解码器具有频域 - 时域转换器，其被配置为基于频谱形式的解码频谱系数集来获得时域音频表示，所述解码频谱系数被编码在线性 - 预测模式和频域模式中编码的音频内容的一部分。 还描述了音频信号编码器。

    Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program
    5.
    发明申请
    Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program 有权
    音频解码器，音频编码器，解码和编码音频信号和计算机程序的方法

    公开(公告)号：US20100217607A1

    公开(公告)日：2010-08-26

    申请号：US12694912

    申请日：2010-01-27

    申请人： Max Neuendorf ,  Jeremie Lecomte ,  Markus Multrus ,  Stefan Bayer ,  Frederik Nagel ,  Guillaume Fuchs ,  Julien Robilliard ,  Nikolaus Rettelbach ,  Ralf Geiger ,  Bernhard Grill

    发明人： Max Neuendorf ,  Jeremie Lecomte ,  Markus Multrus ,  Stefan Bayer ,  Frederik Nagel ,  Guillaume Fuchs ,  Julien Robilliard ,  Nikolaus Rettelbach ,  Ralf Geiger ,  Bernhard Grill

    IPC分类号： G06F17/00

    CPC分类号： G10L19/022 ,  G10L19/20

    摘要： An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode.

    摘要翻译： 一种音频解码器，用于基于音频内容的编码表示来提供音频内容的解码表示，包括线性预测域解码器核心，被配置为基于一组设置提供音频帧的时域表示 与所述音频帧相关联的线性预测域参数和频域解码器核心，所述频域解码器核心被配置为基于一组频域参数来提供音频帧的时域表示，其考虑从 一组包括多个不同的变换窗口。 音频解码器包括信号组合器，其被配置为对在不同域中编码的后续音频帧进行重叠和相加时域表示，以平滑后续帧的时域表示之间的转换。 变换窗口集合包括一个或多个窗口，其特别适用于频域核心模式和线性预测域核心模式之间的转换。

    Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program
    7.
    发明授权
    Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program 有权
    音频解码器，音频编码器，用于对音频信号进行解码和编码的方法以及计算机程序

    公开(公告)号：US08457975B2

    公开(公告)日：2013-06-04

    申请号：US12694912

    申请日：2010-01-27

    申请人： Max Neuendorf ,  Jeremie Lecomte ,  Markus Multrus ,  Stefan Bayer ,  Frederik Nagel ,  Guillaume Fuchs ,  Julien Robilliard ,  Nikolaus Rettelbach ,  Ralf Geiger ,  Bernhard Grill

    发明人： Max Neuendorf ,  Jeremie Lecomte ,  Markus Multrus ,  Stefan Bayer ,  Frederik Nagel ,  Guillaume Fuchs ,  Julien Robilliard ,  Nikolaus Rettelbach ,  Ralf Geiger ,  Bernhard Grill

    IPC分类号： G10L21/00

    CPC分类号： G10L19/022 ,  G10L19/20

    摘要： An audio decoder for providing a decoded representation of an audio content on the basis of an encoded representation of the audio content comprises a linear-prediction-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of linear-prediction domain parameters associated with the audio frame and a frequency-domain decoder core configured to provide a time-domain representation of an audio frame on the basis of a set of frequency-domain parameters, taking into account a transform window out of a set comprising a plurality of different transform windows. The audio decoder comprises a signal combiner configured to overlap-and-add-time-domain representations of subsequent audio frames encoded in different domains, in order to smoothen a transition between the time-domain representations of the subsequent frames. The set of transform windows comprises one or more windows specifically adapted for a transition between a frequency-domain core mode and a linear-prediction-domain core mode.

    摘要翻译： 一种音频解码器，用于基于音频内容的编码表示来提供音频内容的解码表示，包括线性预测域解码器核心，被配置为基于一组设置提供音频帧的时域表示 与所述音频帧相关联的线性预测域参数和频域解码器核心，所述频域解码器核心被配置为基于一组频域参数来提供音频帧的时域表示，其考虑从 一组包括多个不同的变换窗口。 音频解码器包括信号组合器，其被配置为对在不同域中编码的后续音频帧进行重叠和相加时域表示，以平滑后续帧的时域表示之间的转换。 变换窗口集合包括一个或多个窗口，其特别适用于频域核心模式和线性预测域核心模式之间的转换。