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21. 发明申请

US20110238425A1 Multi-Resolution Switched Audio Encoding/Decoding Scheme 有权
标题翻译：多分辨率切换音频编码/解码方案
公开(公告)号：US20110238425A1
公开(公告)日：2011-09-29
申请号：US13081223
申请日：2011-04-06
申请人： Max Neuendorf , Stefan Bayer , Jérémie Lecomte , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Frederik Nagel , Ralf Geiger , Markus Multrus , Bernhard Grill , Philippe Gournay , Redwan Salami
发明人： Max Neuendorf , Stefan Bayer , Jérémie Lecomte , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Frederik Nagel , Ralf Geiger , Markus Multrus , Bernhard Grill , Philippe Gournay , Redwan Salami
IPC分类号： G06F17/00
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder for encoding an audio signal has a first coding branch, the first coding branch comprising a first converter for converting a signal from a time domain into a frequency domain. Furthermore, the audio encoder has a second coding branch comprising a second time/frequency converter. Additionally, a signal analyzer for analyzing the audio signal is provided. The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch. On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters when generating the encoded signals. An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter.
摘要翻译：用于编码音频信号的音频编码器具有第一编码分支，所述第一编码分支包括用于将来自时域的信号转换成频域的第一转换器。此外，音频编码器具有包括第二时间/频率转换器的第二编码分支。另外，提供了用于分析音频信号的信号分析器。手持信号分析仪确定音频部分是否在编码器输出信号中作为来自第一编码分支的第一编码信号或来自第二编码分支的第二编码信号有效。另一方面，当生成编码信号时，信号分析器确定由转换器施加的时间/频率分辨率。除了第一编码信号和第二编码信号之外，输出接口包括识别由第一时间/频率转换器使用并由第二时间/频率转换器使用的分辨率的分辨率信息。

22. 发明授权

US08447620B2 Multi-resolution switched audio encoding/decoding scheme 有权
公开(公告)号：US08447620B2
公开(公告)日：2013-05-21
申请号：US13081223
申请日：2011-04-06
申请人： Max Neuendorf , Stefan Bayer , Jérémie Lecomte , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Frederik Nagel , Ralf Geiger , Markus Multrus , Bernhard Grill , Philippe Gournay , Redwan Salami
发明人： Max Neuendorf , Stefan Bayer , Jérémie Lecomte , Guillaume Fuchs , Julien Robilliard , Nikolaus Rettelbach , Frederik Nagel , Ralf Geiger , Markus Multrus , Bernhard Grill , Philippe Gournay , Redwan Salami
IPC分类号： G10L19/008
CPC分类号： G10L19/008 , G10L19/0017 , G10L19/0212 , G10L19/173 , G10L19/18 , G10L2019/0008
摘要： An audio encoder for encoding an audio signal has a first coding branch, the first coding branch comprising a first converter for converting a signal from a time domain into a frequency domain. Furthermore, the audio encoder has a second coding branch comprising a second time/frequency converter. Additionally, a signal analyzer for analyzing the audio signal is provided. The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch. On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters when generating the encoded signals. An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter.

23. 发明申请

US20110173009A1 Apparatus and Method for Encoding/Decoding an Audio Signal Using an Aliasing Switch Scheme 有权
标题翻译：使用混叠开关方案对音频信号进行编码/解码的装置和方法
公开(公告)号：US20110173009A1
公开(公告)日：2011-07-14
申请号：US13004351
申请日：2011-01-11
申请人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
发明人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/00
CPC分类号： G10L19/20 , G10L19/02 , G10L19/022 , G10L19/04
摘要： An apparatus for encoding an audio signal includes the windower for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The apparatus furthermore includes a processor for processing the first sub-block of the audio signal associated with the aliasing portion by transforming the sub-block from a domain into a different domain subsequent to windowing the first sub-block to obtain the processed first sub-block, and for processing a second sub-block of the audio signal associated with the further portion by transforming the second sub-block from the domain into the different domain before windowing the second sub-block to obtain a processed second sub-block. The apparatus furthermore includes a transformer for converting the processed first sub-block and the processed second sub-block from the different domain into a further different domain using the same block transform rule to obtain a converted first block which may then be compressed using any of the well-known data compression algorithms. Thus, a critically sampled switch between two coding modes can be obtained, since aliasing portions occurring in two different domains are matched to each other.
摘要翻译：用于编码音频信号的装置包括用于使用具有混叠部分和另一部分的分析窗口对音频信号的第一块进行加窗的加窗器。该装置还包括处理器，用于通过在将第一子块加窗以获得处理的第一子块之后，将子块从域变换为不同的域来处理与混叠部分相关联的音频信号的第一子块，并且用于通过在开启第二子块之前将第二子块从该域变换为不同的域来处理与另一部分相关联的音频信号的第二子块，以获得经处理的第二子块。该装置还包括一个变换器，用于使用相同的块变换规则将处理的第一子块和处理的第二子块从不同的域转换成另一个不同的域，以获得转换的第一块，然后可以使用众所周知的数据压缩算法。因此，由于发生在两个不同域中的混叠部分彼此匹配，因此可以获得两种编码模式之间的批量采样切换。

24. 发明授权

US08862480B2 Audio encoding/decoding with aliasing switch for domain transforming of adjacent sub-blocks before and subsequent to windowing 有权
标题翻译：使用混叠开关进行音频编码/解码，用于在开窗之前和之后对相邻子块进行域变换
公开(公告)号：US08862480B2
公开(公告)日：2014-10-14
申请号：US13004351
申请日：2011-01-11
申请人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
发明人： Guillaume Fuchs , Jeremie Lecomte , Stefan Bayer , Ralf Geiger , Markus Multrus , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/02 , G10L19/04 , G10L19/20 , G10L19/022
CPC分类号： G10L19/20 , G10L19/02 , G10L19/022 , G10L19/04
摘要： An apparatus for encoding an audio signal includes the windower for windowing a first block of the audio signal using an analysis window having an aliasing portion and a further portion. The apparatus furthermore includes a processor for processing the first sub-block of the audio signal associated with the aliasing portion by transforming the sub-block from a domain into a different domain subsequent to windowing the first sub-block to obtain the processed first sub-block, and for processing a second sub-block of the audio signal associated with the further portion by transforming the second sub-block from the domain into the different domain before windowing the second sub-block to obtain a processed second sub-block. Thus, a critically sampled switch between two coding modes can be obtained.
摘要翻译：用于编码音频信号的装置包括用于使用具有混叠部分和另一部分的分析窗口对音频信号的第一块进行加窗的加窗器。该装置还包括处理器，用于通过在将第一子块加窗以获得处理的第一子块之后，将子块从域变换为不同的域来处理与混叠部分相关联的音频信号的第一子块，并且用于通过在开启第二子块之前将第二子块从该域变换为不同的域来处理与另一部分相关联的音频信号的第二子块，以获得经处理的第二子块。因此，可以获得两种编码模式之间的批量采样开关。

25. 发明授权

US09043203B2 Audio encoder, audio decoder, methods for encoding and decoding an audio signal, and a computer program 有权
标题翻译：音频编码器，音频解码器，用于编码和解码音频信号的方法以及计算机程序
公开(公告)号：US09043203B2
公开(公告)日：2015-05-26
申请号：US13004508
申请日：2011-01-11
申请人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/02 , G10L19/032 , G10L19/028 , G10L19/035 , G10L25/18
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
摘要翻译：一种用于基于输入音频信号的变换域表示来提供音频流的编码器包括：量化误差计算器，被配置为在输入音频信号的多个频带上确定多频带量化误差，获取信息可用。编码器还包括用于提供音频流的音频流提供器，使得音频流包括描述频带的音频内容的信息和描述多频带量化误差的信息。用于基于表示音频信号的频带的频带的频谱分量的编码音频流提供音频信号的解码表示的解码器包括噪声填充器，用于将噪声引入多个频带的频谱分量中，分频频带增益信息是根据共同的多频带噪声强度值相关联的。

26. 发明申请

US20110173012A1 Noise Filler, Noise Filling Parameter Calculator Encoded Audio Signal Representation, Methods and Computer Program 有权
标题翻译：噪声填充，噪声填充参数计算器编码音频信号表示，方法和计算机程序
公开(公告)号：US20110173012A1
公开(公告)日：2011-07-14
申请号：US13004493
申请日：2011-01-11
申请人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/00
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal has a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral region, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal has a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.
摘要翻译：用于基于音频信号的输入频谱表示来提供音频信号的噪声填充频谱表示的噪声填充器具有频谱区域标识符，其被配置为识别从非零频谱区域间隔开的输入频谱表示的频谱区域通过至少一个中间光谱区域的输入光谱表示，以获得所识别的光谱区域，以及噪声插入器，被配置为选择性地将噪声引入所识别的光谱区域中，以获得音频信号的噪声填充的频谱表示。用于根据音频信号的量化频谱表示提供噪声填充参数的噪声填充参数计算器具有如上所述的频谱区域标识符，以及噪声值计算器，被配置为选择性地考虑所识别的频谱区域的量化误差噪声填充参数的计算。因此，可以获得表示音频信号的编码音频信号表示。

27. 发明授权

US08983851B2 Noise filer, noise filling parameter calculator encoded audio signal representation, methods and computer program 有权
标题翻译：噪声滤波器，噪声填充参数计算器编码音频信号表示，方法和计算机程序
公开(公告)号：US08983851B2
公开(公告)日：2015-03-17
申请号：US13004493
申请日：2011-01-11
申请人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： G10L19/00 , G10L19/032 , G10L19/02 , G10L19/028 , G10L19/035 , G10L25/18
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal has a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral region, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal has a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.
摘要翻译：用于基于音频信号的输入频谱表示来提供音频信号的噪声填充频谱表示的噪声填充器具有频谱区域标识符，其被配置为识别从非零频谱区域间隔开的输入频谱表示的频谱区域通过至少一个中间光谱区域的输入光谱表示，以获得所识别的光谱区域，以及噪声插入器，被配置为选择性地将噪声引入所识别的光谱区域中，以获得音频信号的噪声填充的频谱表示。用于根据音频信号的量化频谱表示提供噪声填充参数的噪声填充参数计算器具有如上所述的频谱区域标识符，以及噪声值计算器，被配置为选择性地考虑所识别的频谱区域的量化误差噪声填充参数的计算。因此，可以获得表示音频信号的编码音频信号表示。

28. 发明申请

US20110170711A1 Audio Encoder, Audio Decoder, Methods for Encoding and Decoding an Audio Signal, and a Computer Program 有权
标题翻译：音频编码器，音频解码器，用于对音频信号进行编码和解码的方法以及计算机程序
公开(公告)号：US20110170711A1
公开(公告)日：2011-07-14
申请号：US13004508
申请日：2011-01-11
申请人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
发明人： Nikolaus Rettelbach , Bernhard Grill , Guillaume Fuchs , Stefan Geyersberger , Markus Multrus , Harald Popp , Juergen Herre , Stefan Wabnik , Gerald Schuller , Jens Hirschfeld
IPC分类号： H03G5/00
CPC分类号： G10L19/035 , G10L19/008 , G10L19/02 , G10L19/0204 , G10L19/028 , G10L19/032 , G10L25/18
摘要： An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal includes a quantization error calculator configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also includes an audio stream provider for providing the audio stream such that the audio stream includes information describing an audio content of the frequency bands and information describing the multi-band quantization error.A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal includes a noise filler for introducing noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value.
摘要翻译：一种用于基于输入音频信号的变换域表示来提供音频流的编码器包括：量化误差计算器，被配置为在输入音频信号的多个频带上确定多频带量化误差，获取信息可用。编码器还包括用于提供音频流的音频流提供器，使得音频流包括描述频带的音频内容的信息和描述多频带量化误差的信息。用于基于表示音频信号的频带的频带的频谱分量的编码音频流提供音频信号的解码表示的解码器包括噪声填充器，用于将噪声引入多个频带的频谱分量中，分频频带增益信息是根据共同的多频带噪声强度值相关联的。

29. 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。

30. 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。

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