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11. 发明申请

US20100217607A1 Audio Decoder, Audio Encoder, Methods for Decoding and Encoding an Audio Signal and Computer Program 有权
标题翻译：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。

12. 发明授权

US08457975B2 Audio decoder, audio encoder, methods for decoding and encoding an audio signal and computer program 有权
标题翻译：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。

13. 发明申请

US20120010880A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR GENERATING A REPRESENTATION OF A BANDWIDTH-EXTENDED SIGNAL ON THE BASIS OF AN INPUT SIGNAL REPRESENTATION USING A COMBINATION OF A HARMONIC BANDWIDTH-EXTENSION AND A NON-HARMONIC BANDWIDTH-EXTENSION 有权
标题翻译：使用谐波带宽扩展和非谐波带宽扩展的组合来生成基于输入信号表示的带宽扩展信号的表示的装置，方法和计算机程序
公开(公告)号：US20120010880A1
公开(公告)日：2012-01-12
申请号：US12992051
申请日：2010-04-01
申请人： Frederik Nagel , Max Neuendorf , Nikolaus Rettelbach , Jeremie Lecomte , Markus Multrus , Bernhard Grill , Sascha Disch
发明人： Frederik Nagel , Max Neuendorf , Nikolaus Rettelbach , Jeremie Lecomte , Markus Multrus , Bernhard Grill , Sascha Disch
IPC分类号： G10L19/02 , G10L21/00
CPC分类号： G10L19/008 , G10L19/18 , G10L21/038
摘要： An apparatus for generating a representation of a bandwidth-extended signal on the basis of an input signal representation includes a phase vocoder configured to obtain values of a spectral domain representation of a first patch of the bandwidth-extended signal on the basis of the input signal representation. The apparatus also includes a value copier configured to copy a set of values of the spectral domain representation of the first patch, which values are provided by the phase vocoder, to obtain a set of values of a spectral domain representation of a second patch, wherein the second patch is associated with higher frequencies than the first patch. The apparatus is configured to obtain the representation of the bandwidth-extended signal using the values of the spectral domain representation of the first patch and the values of the spectral domain representation of the second patch.
摘要翻译：用于基于输入信号表示产生带宽扩展信号的表示的装置包括相位声码器，其被配置为基于输入信号获得带宽扩展信号的第一频块的频域表示的值表示。该装置还包括值复制器，其被配置为复制由相位声码器提供的第一贴片的频域表示的一组值，以获得第二贴片的频域表示的一组值，其中第二贴片与比第一贴片更高的频率相关联。该装置被配置为使用第一补丁的频域表示的值和第二补丁的频域表示的值来获得带宽扩展信号的表示。

14. 发明授权

US09697838B2 Apparatus, method and computer program for generating a representation of a bandwidth-extended signal on the basis of an input signal representation using a combination of a harmonic bandwidth-extension and a non-harmonic bandwidth-extension 有权
公开(公告)号：US09697838B2
公开(公告)日：2017-07-04
申请号：US12992051
申请日：2010-04-01
申请人： Frederik Nagel , Max Neuendorf , Nikolaus Rettelbach , Jeremie Lecomte , Markus Multrus , Bernhard Grill , Sascha Disch
发明人： Frederik Nagel , Max Neuendorf , Nikolaus Rettelbach , Jeremie Lecomte , Markus Multrus , Bernhard Grill , Sascha Disch
IPC分类号： G10L19/008 , G10L19/18 , G10L21/038
CPC分类号： G10L19/008 , G10L19/18 , G10L21/038
摘要： An apparatus for generating a representation of a bandwidth-extended signal on the basis of an input signal representation includes a phase vocoder configured to obtain values of a spectral domain representation of a first patch of the bandwidth-extended signal on the basis of the input signal representation. The apparatus also includes a value copier configured to copy a set of values of the spectral domain representation of the first patch, which values are provided by the phase vocoder, to obtain a set of values of a spectral domain representation of a second patch, wherein the second patch is associated with higher frequencies than the first patch. The apparatus is configured to obtain the representation of the bandwidth-extended signal using the values of the spectral domain representation of the first patch and the values of the spectral domain representation of the second patch.

15. 发明授权

US08751246B2 Audio encoder and decoder for encoding frames of sampled audio signals 有权
标题翻译：用于编码采样音频信号帧的音频编码器和解码器
公开(公告)号：US08751246B2
公开(公告)日：2014-06-10
申请号：US13004335
申请日：2011-01-11
申请人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Nikolaus Rettelbach
发明人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Nikolaus Rettelbach
IPC分类号： G10L19/00 , G10L19/02 , G10L19/04
CPC分类号： G10L19/20
摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame has a number of time domain audio samples, having a predictive coding analysis stage for determining information on coefficients of a synthesis filter and information on a prediction domain frame based on a frame of audio samples. The audio encoder further has a frequency domain transformer for transforming a frame of audio samples to the frequency domain to obtain a frame spectrum and an encoding domain decider for deciding whether encoded data for a frame is based on the information on the coefficients and on the information on the prediction domain frame, or based on the frame spectrum. Moreover, the audio encoder has a controller for determining an information on a switching coefficient when the encoding domain decider decides that encoded data of a current frame is based on the information on the coefficients and the information on the prediction domain frame when encoded data of a previous frame was encoded based on a previous frame spectrum and a redundancy reducing encoder for encoding the information on the prediction domain frame, the information on the coefficients, the information on the switching coefficient and/or the frame spectrum.
摘要翻译：一种音频编码器，用于对采样的音频信号的帧进行编码以获得编码的帧，其中帧具有多个时域音频样本，具有用于确定关于合成滤波器的系数的信息的预测编码分析阶段和关于预测域的信息基于一帧音频样本。音频编码器还具有用于将音频样本的帧变换到频域以获得帧频的频域变换器，以及用于决定帧的编码数据是否基于关于系数和信息的信息的编码域决定器在预测域帧上，或基于帧频谱。此外，音频编码器具有控制器，用于当编码域决定器根据关于系数的信息和关于预测域帧的信息确定当前帧的编码数据时，确定关于切换系数的信息，当编码数据前一帧是基于先前的帧频编码的，并且用于对预测域帧上的信息进行编码的冗余减少编码器，关于系数的信息，关于切换系数和/或帧频谱的信息。

16. 发明申请

US20110173008A1 Audio Encoder and Decoder for Encoding Frames of Sampled Audio Signals 有权
标题翻译：用于编码采样音频信号帧的音频编码器和解码器
公开(公告)号：US20110173008A1
公开(公告)日：2011-07-14
申请号：US13004335
申请日：2011-01-11
申请人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Nikolaus Rettelbach
发明人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Nikolaus Rettelbach
IPC分类号： G10L19/00
CPC分类号： G10L19/20
摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame has a number of time domain audio samples, having a predictive coding analysis stage for determining information on coefficients of a synthesis filter and information on a prediction domain frame based on a frame of audio samples. The audio encoder further has a frequency domain transformer for transforming a frame of audio samples to the frequency domain to obtain a frame spectrum and an encoding domain decider for deciding whether encoded data for a frame is based on the information on the coefficients and on the information on the prediction domain frame, or based on the frame spectrum. Moreover, the audio encoder has a controller for determining an information on a switching coefficient when the encoding domain decider decides that encoded data of a current frame is based on the information on the coefficients and the information on the prediction domain frame when encoded data of a previous frame was encoded based on a previous frame spectrum and a redundancy reducing encoder for encoding the information on the prediction domain frame, the information on the coefficients, the information on the switching coefficient and/or the frame spectrum.
摘要翻译：一种音频编码器，用于对采样的音频信号的帧进行编码以获得编码的帧，其中帧具有多个时域音频样本，具有用于确定关于合成滤波器的系数的信息的预测编码分析阶段和关于预测域的信息基于一帧音频样本。音频编码器还具有用于将音频样本的帧变换到频域以获得帧频的频域变换器，以及用于决定帧的编码数据是否基于关于系数和信息的信息的编码域决定器在预测域帧上，或基于帧频谱。此外，音频编码器具有控制器，用于当编码域决定器根据关于系数的信息和关于预测域帧的信息确定当前帧的编码数据时，确定关于切换系数的信息，当编码数据前一帧是基于先前的帧频编码的，并且用于对预测域帧上的信息进行编码的冗余减少编码器，关于系数的信息，关于切换系数和/或帧频谱的信息。

17. 发明申请

US20100262420A1 AUDIO ENCODER FOR ENCODING AN AUDIO SIGNAL HAVING AN IMPULSE-LIKE PORTION AND STATIONARY PORTION, ENCODING METHODS, DECODER, DECODING METHOD, AND ENCODING AUDIO SIGNAL 有权
标题翻译：用于编码具有脉冲样部分和静止部分的音频信号的编码器，编码方法，解码器，解码方法和编码音频信号
公开(公告)号：US20100262420A1
公开(公告)日：2010-10-14
申请号：US12663828
申请日：2008-06-05
申请人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
发明人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
IPC分类号： G10L19/00
CPC分类号： G10L19/20
摘要： An audio encoder for encoding an audio signal includes an impulse extractor for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface. Furthermore, the audio encoder includes a signal encoder which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface forwards both, the encoded signals, i.e., the encoded impulse signal and the encoded residual signal for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.
摘要翻译：用于对音频信号进行编码的音频编码器包括用于从音频信号中提取脉冲状部分的脉冲提取器。该脉冲状部分被编码并转发到输出接口。此外，音频编码器包括信号编码器，其对从原始音频信号导出的残留信号进行编码，从而在残留音频信号中减少或消除脉冲状部分。输出接口转发编码的信号，即编码的脉冲信号和编码的残留信号用于传输或存储。在解码器侧，两个信号部分被单独解码，然后被组合以获得解码的音频信号。

18. 发明授权

US08706480B2 Audio encoder for encoding an audio signal having an impulse-like portion and stationary portion, encoding methods, decoder, decoding method, and encoding audio signal 有权
标题翻译：用于编码具有脉冲状部分和静止部分的音频信号的音频编码器，编码方法，解码器，解码方法和编码音频信号
公开(公告)号：US08706480B2
公开(公告)日：2014-04-22
申请号：US12663828
申请日：2008-06-05
申请人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
发明人： Juergen Herre , Ralf Geiger , Stefan Bayer , Guillaume Fuchs , Ulrich Kraemer , Nikolaus Rettelbach , Bernhard Grill
IPC分类号： G10L19/14
CPC分类号： G10L19/20
摘要： An audio encoder for encoding an audio signal includes an impulse extractor for extracting an impulse-like portion from the audio signal. This impulse-like portion is encoded and forwarded to an output interface. Furthermore, the audio encoder includes a signal encoder which encodes a residual signal derived from the original audio signal so that the impulse-like portion is reduced or eliminated in the residual audio signal. The output interface forwards both, the encoded signals, i.e., the encoded impulse signal and the encoded residual signal for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio signal.
摘要翻译：用于对音频信号进行编码的音频编码器包括用于从音频信号中提取脉冲状部分的脉冲提取器。该脉冲状部分被编码并转发到输出接口。此外，音频编码器包括信号编码器，其对从原始音频信号导出的残留信号进行编码，从而在残留音频信号中减少或消除脉冲状部分。输出接口转发编码的信号，即编码的脉冲信号和编码的残留信号用于传输或存储。在解码器侧，两个信号部分被单独解码，然后被组合以获得解码的音频信号。

19. 发明授权

US08744863B2 Multi-mode audio encoder and audio decoder with spectral shaping in a linear prediction mode and in a frequency-domain mode 有权
标题翻译：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。

20. 发明申请

US20120245947A1 MULTI-MODE AUDIO SIGNAL DECODER, MULTI-MODE AUDIO SIGNAL ENCODER, METHODS AND COMPUTER PROGRAM USING A LINEAR-PREDICTION-CODING BASED NOISE SHAPING 有权
标题翻译：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。

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