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1. 发明申请

US20110173011A1 Audio Encoder and Decoder for Encoding and Decoding Frames of a Sampled Audio Signal 有权
标题翻译：音频编码器和解码器，用于对采样音频信号的帧进行编码和解码
公开(公告)号：US20110173011A1
公开(公告)日：2011-07-14
申请号：US13004475
申请日：2011-01-11
申请人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
发明人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
IPC分类号： G10L19/00
CPC分类号： G10L19/0212 , G10L19/04
摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra.
摘要翻译：一种音频编码器，适于编码采样的音频信号的帧以获得编码的帧，其中帧包括多个时域音频采样。音频编码器包括用于基于音频样本的帧来确定关于合成滤波器和预测域帧的系数的信息的预测编码分析阶段。音频编码器还包括时间混叠引入变压器，用于将重叠的预测域帧转换到频域以获得预测域帧频谱，其中时间混叠引入变压器适于以重要取样的方式变换重叠的预测域帧。此外，音频编码器包括冗余减少编码器，用于根据系数和编码的预测域帧频谱对预测域帧频谱进行编码以获得编码的帧。

2. 发明授权

US08595019B2 Audio coder/decoder with predictive coding of synthesis filter and critically-sampled time aliasing of prediction domain frames 有权
标题翻译：具有合成滤波器的预测编码和预测域帧的临时采样时间混叠的音频编码器/解码器
公开(公告)号：US08595019B2
公开(公告)日：2013-11-26
申请号：US13004475
申请日：2011-01-11
申请人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
发明人： Ralf Geiger , Bernhard Grill , Bruno Bessette , Philippe Gournay , Guillaume Fuchs , Markus Multrus , Max Neuendorf , Gerald Schuller
IPC分类号： G10L19/00 , G10L19/02 , G10L19/04
CPC分类号： G10L19/0212 , G10L19/04
摘要： An audio encoder adapted for encoding frames of a sampled audio signal to obtain encoded frames, wherein a frame includes a number of time domain audio samples. The audio encoder includes a predictive coding analysis stage for determining information on coefficients of a synthesis filter and a prediction domain frame based on a frame of audio samples. The audio encoder further includes a time-aliasing introducing transformer for transforming overlapping prediction domain frames to the frequency domain to obtain prediction domain frame spectra, wherein the time-aliasing introducing transformer is adapted for transforming the overlapping prediction domain frames in a critically-sampled way. Moreover, the audio encoder includes a redundancy reducing encoder for encoding the prediction domain frame spectra to obtain the encoded frames based on the coefficients and the encoded prediction domain frame spectra.
摘要翻译：一种音频编码器，适于编码采样的音频信号的帧以获得编码的帧，其中帧包括多个时域音频采样。音频编码器包括用于基于音频样本的帧来确定关于合成滤波器和预测域帧的系数的信息的预测编码分析阶段。音频编码器还包括时间混叠引入变压器，用于将重叠的预测域帧转换到频域以获得预测域帧频谱，其中时间混叠引入变压器适于以重要取样的方式变换重叠的预测域帧。此外，音频编码器包括冗余减少编码器，用于根据系数和编码的预测域帧频谱对预测域帧频谱进行编码以获得编码的帧。

3. 发明授权

US08930198B2 Low bitrate audio encoding/decoding scheme having cascaded switches 有权
标题翻译：具有级联交换机的低比特率音频编码/解码方案
公开(公告)号：US08930198B2
公开(公告)日：2015-01-06
申请号：US13004385
申请日：2011-01-11
申请人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
发明人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
IPC分类号： G10L19/00 , G10L19/18 , G10L19/16 , G10L19/008 , G10L19/02
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a first information sink oriented encoding branch, a second information source or SNR oriented encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain, and wherein the second encoding branch furthermore has a specific domain coding branch, and a specific spectral domain coding branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder, a second domain decoder for decoding a signal, and a third domain decoder and two cascaded switches for switching between the decoders.
摘要翻译：音频编码器具有第一信息汇集编码分支，第二信息源或SNR定向编码分支，以及用于在第一编码分支和第二编码分支之间进行切换的开关，其中第二编码分支具有转换器到特定的域并且其中第二编码分支还具有特定的域编码分支，以及特定频域编码分支，以及用于在特定的域编码分支与特定频域编码分支之间切换的附加开关。音频解码器具有第一域解码器，用于对信号进行解码的第二域解码器，以及用于在解码器之间切换的第三域解码器和两个级联开关。

4. 发明授权

US08321210B2 Audio encoding/decoding scheme having a switchable bypass 有权
标题翻译：具有可切换旁路的音频编码/解码方案
公开(公告)号：US08321210B2
公开(公告)日：2012-11-27
申请号：US13007412
申请日：2011-01-14
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami
IPC分类号： G10L19/14 , G10L21/00 , G10L19/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An apparatus for encoding includes a first domain converter, a switchable bypass, a second domain converter, a first processor and a second processor to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain converter allow the generation of a decoded audio signal with high quality and low bit rate.
摘要翻译：一种用于编码的装置包括第一域转换器，可切换旁路，第二域转换器，第一处理器和第二处理器，以获得具有由不同域中的编码数据表示的具有不同信号部分的编码音频信号，编码算法。解码器中的对应的解码级和用于绕过域转换器的旁路允许生成具有高质量和低比特率的解码音频信号。

5. 发明申请

US20110202355A1 Audio Encoding/Decoding Scheme Having a Switchable Bypass 有权
标题翻译：具有可切换旁路的音频编码/解码方案
公开(公告)号：US20110202355A1
公开(公告)日：2011-08-18
申请号：US13007412
申请日：2011-01-14
申请人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami
发明人： Bernhard Grill , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami
IPC分类号： G10L21/00
CPC分类号： G10L19/173 , G10L19/0017 , G10L19/008 , G10L19/0212 , G10L19/18 , G10L2019/0008
摘要： An apparatus for encoding includes a first domain converter, a switchable bypass, a second domain converter, a first processor and a second processor to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain converter allow the generation of a decoded audio signal with high quality and low bit rate.
摘要翻译：一种用于编码的装置包括第一域转换器，可切换旁路，第二域转换器，第一处理器和第二处理器，以获得具有由不同域中的编码数据表示的具有不同信号部分的编码音频信号，编码算法。解码器中的对应的解码级和用于绕过域转换器的旁路允许生成具有高质量和低比特率的解码音频信号。

6. 发明申请

US20110202354A1 Low Bitrate Audio Encoding/Decoding Scheme Having Cascaded Switches 有权
标题翻译：具有级联交换机的低比特率音频编码/解码方案
公开(公告)号：US20110202354A1
公开(公告)日：2011-08-18
申请号：US13004385
申请日：2011-01-11
申请人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
发明人： Bernhard Grill , Roch Lefebvre , Bruno Bessette , Jimmy Lapierre , Philippe Gournay , Redwan Salami , Stefan Bayer , Guillaume Fuchs , Stefan Geyersberger , Ralf Geiger , Johannes Hilpert , Ulrich Kraemer , Jeremie Lecomte , Markus Multrus , Max Neuendorf , Harald Popp , Nikolaus Rettelbach
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder has a first information sink oriented encoding branch such as a spectral domain encoding branch, a second information source or SNR oriented encoding branch such as an LPC-domain encoding branch, and a switch for switching between the first encoding branch and the second encoding branch, wherein the second encoding branch has a converter into a specific domain different from the spectral domain such as an LPC analysis stage generating an excitation signal, and wherein the second encoding branch furthermore has a specific domain coding branch such as LPC domain processing branch, and a specific spectral domain coding branch such as LPC spectral domain processing branch, and an additional switch for switching between the specific domain coding branch and the specific spectral domain coding branch. An audio decoder has a first domain decoder such as a spectral domain decoding branch, a second domain decoder such as an LPC domain decoding branch for decoding a signal such as an excitation signal in the second domain, and a third domain decoder such as an LPC-spectral decoder branch and two cascaded switches for switching between the decoders.
摘要翻译：音频编码器具有第一信息汇集编码分支，例如频域编码分支，第二信息源或诸如LPC域编码分支的面向SNR的编码分支，以及用于在第一编码分支和第二编码分支之间进行切换的开关编码分支，其中所述第二编码分支具有转换器到不同于频域的特定领域，例如产生激励信号的LPC分析阶段，并且其中所述第二编码分支还具有特定的域编码分支，诸如LPC域处理分支，以及诸如LPC频域处理分支的特定频域编码分支，以及用于在特定编码分支和特定频域编码分支之间切换的附加开关。音频解码器具有第一域解码器，例如频域解码分支，第二域解码器，例如LPC域解码分支，用于解码诸如第二域中的激励信号的信号，以及第三域解码器，例如LPC 光谱解码器分支和两个级联开关，用于在解码器之间切换。

7. 发明申请

US20120271644A1 AUDIO SIGNAL ENCODER, AUDIO SIGNAL DECODER, METHOD FOR ENCODING OR DECODING AN AUDIO SIGNAL USING AN ALIASING-CANCELLATION 有权
标题翻译：音频信号编码器，音频信号解码器，使用消息取消来编码或解码音频信号的方法
公开(公告)号：US20120271644A1
公开(公告)日：2012-10-25
申请号：US13449949
申请日：2012-04-18
申请人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
发明人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
IPC分类号： G10L19/12
CPC分类号： G10L19/03 , G10L19/0212 , G10L19/20 , G10L2019/0008
摘要： An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal.
摘要翻译：音频信号解码器包括变换域路径，被配置为基于第一组频谱系数获得音频内容的一部分的时域表示，混叠取消激励信号的表示和多个线性 - 预测域参数。变换域路径将频谱整形应用于第一组频谱系数，以获得其频谱形状的版本。变换域路径基于第一组频谱系数的频谱形式获得音频内容的时域表示。变换域路径包括混叠消除刺激滤波器，以根据线性预测域参数的至少一个子集来滤除混叠消除激励信号。变换域路径还包括组合器，其被配置为将音频内容的时域表示与混叠消除合成信号组合以获得混叠减小的时域信号。

8. 发明授权

US08484038B2 Audio signal encoder, audio signal decoder, method for encoding or decoding an audio signal using an aliasing-cancellation 有权
标题翻译：音频信号编码器，音频信号解码器，使用混叠取消对音频信号进行编码或解码的方法
公开(公告)号：US08484038B2
公开(公告)日：2013-07-09
申请号：US13449949
申请日：2012-04-18
申请人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
发明人： Bruno Bessette , Max Neuendorf , Ralf Geiger , Philippe Gournay , Roch Lefebvre , Bernhard Grill , Jeremie Lecomte , Stefan Bayer , Nikolaus Rettelbach , Lars Villemoes , Redwan Salami , Albertus C. Den Brinker
IPC分类号： G10L21/00 , G10L19/00
CPC分类号： G10L19/03 , G10L19/0212 , G10L19/20 , G10L2019/0008
摘要： An audio signal decoder includes a transform domain path configured to obtain a time-domain representation of a portion of an audio content on the basis of a first set of spectral coefficients, a representation of an aliasing-cancellation stimulus signal and a plurality of linear-prediction-domain parameters. The transform domain path applies a spectrum shaping to the first set of spectral coefficients to obtain a spectrally-shaped version thereof. The transform domain path obtains a time-domain representation of the audio content on the basis of the spectrally-shaped version of the first set of spectral coefficients. The transform domain path includes an aliasing-cancellation stimulus filter to filter the aliasing-cancellation stimulus signal in dependence on at least a subset of the linear-prediction-domain parameters. The transform domain path also includes a combiner configured to combine the time-domain representation of the audio content with an aliasing-cancellation synthesis signal to obtain an aliasing reduced time-domain signal.
摘要翻译：音频信号解码器包括变换域路径，被配置为基于第一组频谱系数获得音频内容的一部分的时域表示，混叠取消激励信号的表示和多个线性 - 预测域参数。变换域路径将频谱整形应用于第一组频谱系数，以获得其频谱形状的版本。变换域路径基于第一组频谱系数的频谱形式获得音频内容的时域表示。变换域路径包括混叠消除刺激滤波器，以根据线性预测域参数的至少一个子集来滤除混叠消除激励信号。变换域路径还包括组合器，其被配置为将音频内容的时域表示与混叠消除合成信号组合以获得混叠减小的时域信号。

9. 发明授权

US08892449B2 Audio encoder/decoder with switching between first and second encoders/decoders using first and second framing rules 有权
标题翻译：音频编码器/解码器，其使用第一和第二成帧规则在第一和第二编码器/解码器之间切换
公开(公告)号：US08892449B2
公开(公告)日：2014-11-18
申请号：US13004400
申请日：2011-01-11
申请人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Bruno Bessette , Bernhard Grill
发明人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Bruno Bessette , Bernhard Grill
IPC分类号： G10L19/00 , G10L19/022 , G10L19/20
CPC分类号： G10L19/20 , G10L19/022
摘要： An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder.
摘要翻译：用于编码音频样本的音频编码器具有第一时域混叠引入编码器，其被配置为对第一编码域中的音频样本进行解码，并且具有第一成帧规则，起始窗口和停止窗口。音频编码器还具有第二编码器，其被配置为对第二编码域中的样本进行编码并具有预定的帧大小的音频样本，以及编码预热周期数量的音频样本，第二编码器具有不同的第二成帧规则，第二编码器的帧是等于音频样本的预定帧大小数目的多个连续音频采样的编码表示。音频编码器还具有从第一编码器切换到第二编码器并且用于修改第二成帧规则或用于修改第一编码器的起始或停止窗口的控制器。

10. 发明申请

US20110173010A1 Audio Encoder and Decoder for Encoding and Decoding Audio Samples 有权
标题翻译：用于编码和解码音频样本的音频编码器和解码器
公开(公告)号：US20110173010A1
公开(公告)日：2011-07-14
申请号：US13004400
申请日：2011-01-11
申请人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Bruno Bessette , Bernhard Grill
发明人： Jeremie Lecomte , Philippe Gournay , Stefan Bayer , Markus Multrus , Bruno Bessette , Bernhard Grill
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/022
摘要： An audio encoder for encoding audio samples has a first time domain aliasing introducing encoder configured to decode audio samples in a first encoding domain and having a first framing rule, a start window and a stop window. The audio encoder further has a second encoder configured to encode samples in a second encoding domain and having a predetermined frame size number of audio samples, and a coding warm-up period number of audio samples, the second encoder having a different second framing rule, a frame of the second encoder being an encoded representation of a number of successive audio samples that is equal to the predetermined frame size number of audio samples. The audio encoder further has a controller switching from the first to the second encoder and for modifying the second framing rule or for modifying the start or the stop window of the first encoder.
摘要翻译：用于编码音频样本的音频编码器具有第一时域混叠引入编码器，其被配置为对第一编码域中的音频样本进行解码，并且具有第一成帧规则，起始窗口和停止窗口。音频编码器还具有第二编码器，其被配置为对第二编码域中的样本进行编码并具有预定的帧大小的音频样本，以及编码预热周期数量的音频样本，第二编码器具有不同的第二成帧规则，第二编码器的帧是等于音频样本的预定帧大小数目的多个连续音频采样的编码表示。音频编码器还具有从第一编码器切换到第二编码器并且用于修改第二成帧规则或用于修改第一编码器的起始或停止窗口的控制器。

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