公开(公告)号：US08401862B2

公开(公告)日：2013-03-19

申请号：US13158547

申请日：2011-06-13

申请人： Frederik Nagel ,  Sascha Disch ,  Guillaume Fuchs ,  Juergen Herre ,  Christian Greibel

发明人： Frederik Nagel ,  Sascha Disch ,  Guillaume Fuchs ,  Juergen Herre ,  Christian Greibel

IPC分类号： G10L19/00

CPC分类号： G10L19/265 ,  G10L19/00 ,  G10L19/24 ,  G10L21/038

摘要： An audio encoder for providing an output signal using an input audio signal includes a patch generator, a comparator and an output interface. The patch generator generates at least one bandwidth extension high-frequency signal, wherein a bandwidth extension high-frequency signal includes a high-frequency band. The high-frequency band of the bandwidth extension high-frequency signal is based on a low frequency band of the input audio signal. A comparator calculates a plurality of comparison parameters. A comparison parameter is calculated based on a comparison of the input audio signal and a generated bandwidth extension high-frequency signal. Each comparison parameter of the plurality of comparison parameters is calculated based on a different offset frequency between the input audio signal and a generated bandwidth extension high-frequency signal. Further, the comparator determines a comparison parameter from the plurality of comparison parameters, wherein the determined comparison parameter fulfils a predefined criterion.

摘要翻译： 用于使用输入音频信号提供输出信号的音频编码器包括片生成器，比较器和输出接口。 贴片发生器产生至少一个带宽扩展高频信号，其中带宽扩展高频信号包括高频带。 带宽扩展高频信号的高频带基于输入音频信号的低频带。 比较器计算多个比较参数。 基于输入音频信号和产生的带宽扩展高频信号的比较来计算比较参数。 基于输入音频信号与生成的带宽扩展高频信号之间的不同偏移频率来计算多个比较参数的每个比较参数。 此外，比较器确定来自多个比较参数的比较参数，其中确定的比较参数满足预定标准。

公开(公告)号：US20110200198A1

公开(公告)日：2011-08-18

申请号：US13004453

申请日：2011-01-11

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 ,  Frederik Nagel ,  Sascha Disch ,  Juergen Herre ,  Yoshikazu Yokotani ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

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 ,  Frederik Nagel ,  Sascha Disch ,  Juergen Herre ,  Yoshikazu Yokotani ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

IPC分类号： G10L19/14 ,  G10L21/00

CPC分类号： G10L19/173 ,  G10L19/0017 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/18 ,  G10L2019/0008

摘要： An audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.

摘要翻译： 音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或 这些分支的输出由决策阶段控制。 音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级 信号。

公开(公告)号：US08804970B2

公开(公告)日：2014-08-12

申请号：US13004453

申请日：2011-01-11

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 ,  Frederik Nagel ,  Sascha Disch ,  Juergen Herre ,  Yoshikazu Yokotani ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

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 ,  Frederik Nagel ,  Sascha Disch ,  Juergen Herre ,  Yoshikazu Yokotani ,  Stefan Wabnik ,  Gerald Schuller ,  Jens Hirschfeld

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 audio encoder has a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder has a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.

摘要翻译： 音频编码器具有通用的预处理级，诸如频域编码分支的基于信息宿的编码分支，诸如LPC域编码分支的基于信息源的编码分支以及用于在这些分支的输入处切换这些分支之间的切换，或 这些分支的输出由决策阶段控制。 音频解码器具有频域解码分支，LPC域解码分支，用于在分支之间切换的一个或多个开关和用于后处理时域音频信号以用于获得后处理音频的公共后处理级 信号。

公开(公告)号：US09275652B2

公开(公告)日：2016-03-01

申请号：US12921550

申请日：2009-02-17

申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： G06F17/00 ,  G10L21/04 ,  G10L19/025

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

公开(公告)号：US09230558B2

公开(公告)日：2016-01-05

申请号：US13465936

申请日：2012-05-07

申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： G06F17/00 ,  G10L21/04 ,  G10L19/025

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

公开(公告)号：US20110112670A1

公开(公告)日：2011-05-12

申请号：US12921550

申请日：2009-02-17

申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： G06F17/00

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

摘要翻译： 用于操纵具有瞬态事件的音频信号的信号操纵器可以具有瞬态去除器，信号处理器和信号插入器，用于在瞬态事件被去除的信号位置处将处理后的音频信号中的时间部分插入， 去除器，使得被操纵的音频信号具有不受处理影响的瞬态事件，由此维持瞬态事件的垂直相干性而不是在信号处理器中执行的任何处理，这将破坏瞬态的垂直相干性。

公开(公告)号：US09236062B2

公开(公告)日：2016-01-12

申请号：US13465946

申请日：2012-05-07

申请人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha Disch ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： G06F17/00 ,  G10L21/04 ,  G10L19/025

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

摘要翻译： 用于操纵具有瞬态事件的音频信号的信号操纵器可以具有瞬态去除器，信号处理器和信号插入器，用于在瞬态事件被去除的信号位置处将处理后的音频信号中的时间部分插入， 去除器，使得被操纵的音频信号具有不受处理影响的瞬态事件，由此维持瞬态事件的垂直相干性而不是在信号处理器中执行的任何处理，这将破坏瞬态的垂直相干性。

公开(公告)号：US20130010983A1

公开(公告)日：2013-01-10

申请号：US13465958

申请日：2012-05-07

申请人： Sascha DISCH ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha DISCH ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： G06F17/00 ,  G10L19/14 ,  H04R1/32

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

摘要翻译： 用于操纵具有瞬态事件的音频信号的信号操纵器可以具有瞬态去除器，信号处理器和信号插入器，用于在瞬态事件被去除的信号位置处将处理后的音频信号中的时间部分插入， 去除器，使得被操纵的音频信号具有不受处理影响的瞬态事件，由此维持瞬态事件的垂直相干性而不是在信号处理器中执行的任何处理，这将破坏瞬态的垂直相干性。

公开(公告)号：US20130003992A1

公开(公告)日：2013-01-03

申请号：US13465936

申请日：2012-05-07

申请人： Sascha DISCH ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

发明人： Sascha DISCH ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Markus Multrus ,  Guillaume Fuchs

IPC分类号： H04B1/00

CPC分类号： G10L21/04 ,  G10L19/025

摘要： A signal manipulator for manipulating an audio signal having a transient event may have a transient remover, a signal processor and a signal inserter for inserting a time portion in a processed audio signal at a signal location where the transient event was removed before processing by the transient remover, so that a manipulated audio signal has a transient event not influenced by the processing, whereby the vertical coherence of the transient event is maintained instead of any processing performed in the signal processor, which would destroy the vertical coherence of a transient.

公开(公告)号：US20110202337A1

公开(公告)日：2011-08-18

申请号：US13004534

申请日：2011-01-11

申请人： Guillaume Fuchs ,  Stefan Bayer ,  Jens Hirschfeld ,  Juergen Herre ,  Jeremie Lecomte ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Stefan Wabnik ,  Yoshikazu Yokotani

发明人： Guillaume Fuchs ,  Stefan Bayer ,  Jens Hirschfeld ,  Juergen Herre ,  Jeremie Lecomte ,  Frederik Nagel ,  Nikolaus Rettelbach ,  Stefan Wabnik ,  Yoshikazu Yokotani

IPC分类号： G10L15/00

CPC分类号： G10L19/20 ,  G10L19/22 ,  G10L25/00 ,  G10L25/51 ,  G10L2025/783

摘要： For classifying different segments of a signal which has segments of at least a first type and second type, e.g. audio and speech segments, the signal is short-term classified on the basis of the at least one short-term feature extracted from the signal and a short-term classification result is delivered. The signal is also long-term classified on the basis of the at least one short-term feature and at least one long-term feature extracted from the signal and a long-term classification result is delivered. The short-term classification result and the long-term classification result are combined to provide an output signal indicating whether a segment of the signal is of the first type or of the second type.

摘要翻译： 用于分类具有至少第一类型和第二类型的段的信号的不同段，例如， 音频和语音段，信号是根据从信号中提取的至少一个短期特征进行短期分类的，并且传送短期分类结果。 信号也是基于至少一个短期特征和从该信号提取的至少一个长期特征和长期分类结果进行长期分类的。 组合短期分类结果和长期分类结果以提供指示信号的片段是第一类型还是第二类型的输出信号。