专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US08401862B2 Audio encoder, method for providing output signal, bandwidth extension decoder, and method for providing bandwidth extended audio signal 有权
标题翻译：音频编码器，用于提供输出信号的方法，带宽扩展解码器和用于提供带宽扩展音频信号的方法
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。

22. 发明授权

US08238562B2 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US08238562B2
公开(公告)日：2012-08-07
申请号：US12550519
申请日：2009-08-31
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/00
CPC分类号： G10L19/008 , H04S3/02
摘要： In one embodiment, C input audio channels are encoded to generate E transmitted audio channel(s), where one or more cue codes are generated for two or more of the C input channels, and the C input channels are downmixed to generate the E transmitted channel(s), where C>E≧1. One or more of the C input channels and the E transmitted channel(s) are analyzed to generate a flag indicating whether or not a decoder of the E transmitted channel(s) should perform envelope shaping during decoding of the E transmitted channel(s). In one implementation, envelope shaping adjusts a temporal envelope of a decoded channel generated by the decoder to substantially match a temporal envelope of a corresponding transmitted channel.
摘要翻译：在一个实施例中，对C个输入音频信道进行编码以产生E个发送的音频信道，其中为两个或更多个C个输入信道生成一个或多个提示码，并且将C个输入信道下混合以产生E个发送的通道，其中C>E≥1。分析C个输入信道和E个发送信道中的一个或多个，以产生一个标志，该标志指示E个被发送的信道的解码器是否应在E个发送的信道的解码期间执行包络整形，。在一个实现中，包络整形调整由解码器产生的解码信道的时间包络，以使其对应的传输信道的时间包络基本匹配。

23. 发明授权

US08204261B2 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US08204261B2
公开(公告)日：2012-06-19
申请号：US11006492
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/02
CPC分类号： G10L19/008 , H04S3/02
摘要： An input audio signal having an input temporal envelope is converted into an output audio signal having an output temporal envelope. The input temporal envelope of the input audio signal is characterized. The input audio signal is processed to generate a processed audio signal, wherein the processing de-correlates the input audio signal. The processed audio signal is adjusted based on the characterized input temporal envelope to generate the output audio signal, wherein the output temporal envelope substantially matches the input temporal envelope.
摘要翻译：具有输入时间包络的输入音频信号被转换成具有输出时间包络的输出音频信号。表征输入音频信号的输入时间包络。输入音频信号被处理以产生经处理的音频信号，其中该处理使输入音频信号去相关。经处理的音频信号基于表征的输入时间包络被调整以产生输出音频信号，其中输出时间包络基本上与输入的时间包络相匹配。

24. 发明申请

US20060085200A1 Diffuse sound shaping for BCC schemes and the like 有权
标题翻译： BCC方案的漫射声音整形等
公开(公告)号：US20060085200A1
公开(公告)日：2006-04-20
申请号：US11006492
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , H04S3/02
摘要： An input audio signal having an input temporal envelope is converted into an output audio signal having an output temporal envelope. The input temporal envelope of the input audio signal is characterized. The input audio signal is processed to generate a processed audio signal, wherein the processing de-correlates the input audio signal. The processed audio signal is adjusted based on the characterized input temporal envelope to generate the output audio signal, wherein the output temporal envelope substantially matches the input temporal envelope.
摘要翻译：具有输入时间包络的输入音频信号被转换成具有输出时间包络的输出音频信号。表征输入音频信号的输入时间包络。输入音频信号被处理以产生经处理的音频信号，其中该处理使输入音频信号去相关。经处理的音频信号基于表征的输入时间包络被调整以产生输出音频信号，其中输出时间包络基本上与输入的时间包络相匹配。

25. 发明申请

US20060083385A1 Individual channel shaping for BCC schemes and the like 有权
标题翻译： BCC方案的单个通道整形等
公开(公告)号：US20060083385A1
公开(公告)日：2006-04-20
申请号：US11006482
申请日：2004-12-07
申请人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
发明人： Eric Allamanche , Sascha Disch , Christof Faller , Juergen Herre
IPC分类号： H04R5/00
CPC分类号： G10L19/008
摘要： At an audio encoder, cue codes are generated for one or more audio channels, wherein an envelope cue code is generated by characterizing a temporal envelope in an audio channel. At an audio decoder, E transmitted audio channel(s) are decoded to generate C playback audio channels, where C>E≧1. Received cue codes include an envelope cue code corresponding to a characterized temporal envelope of an audio channel corresponding to the transmitted channel(s). One or more transmitted channel(s) are upmixed to generate one or more upmixed channels. One or more playback channels are synthesized by applying the cue codes to the one or more upmixed channels, wherein the envelope cue code is applied to an upmixed channel or a synthesized signal to adjust a temporal envelope of the synthesized signal based on the characterized temporal envelope such that the adjusted temporal envelope substantially matches the characterized temporal envelope.
摘要翻译：在音频编码器中，为一个或多个音频通道生成提示码，其中通过表征音频通道中的时间包络来产生包络线索码。在音频解码器处，E个发送的音频信道被解码以产生C个播放音频信道，其中C> E> = 1。接收的提示码包括与对应于所发送的频道的音频信道的特征化时间包络对应的信封提示码。一个或多个传输的信道被混合以产生一个或多个上混频道。通过将提示码应用于一个或多个上混合通道来合成一个或多个回放通道，其中，将包络提示码应用于上混合通道或合成信号，以基于表征的时间包络线来调整合成信号的时间包络使得调整的时间包络基本上与所表征的时间包络相匹配。

26. 发明授权

US09361896B2 Temporal and spatial shaping of multi-channel audio signal 有权
标题翻译：多声道音频信号的时空整形
公开(公告)号：US09361896B2
公开(公告)日：2016-06-07
申请号：US14151152
申请日：2014-01-09
申请人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
发明人： Sascha Disch , Juergen Herre , Matthias Neusinger , Dirk Jeroen Breebaart , Gerard Hotho
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/008
摘要： A selected channel of a multi-channel signal which is represented by frames composed from sampling values having a high time resolution can be encoded with higher quality when a wave form parameter representation representing a wave form of an intermediate resolution representation of the selected channel is derived, the wave form parameter representation including a sequence of intermediate wave form parameters having a time resolution lower than the high time resolution of the sampling values and higher than a time resolution defined by a frame repetition rate. The wave form parameter representation with the intermediate resolution can be used to shape a reconstructed channel to retrieve a channel having a signal envelope close to that one of the selected original channel. The time scale on which the shaping is performed is shorter than the time scale of a framewise processing, thus enhancing the quality of the reconstructed channel. On the other hand, the shaping time scale is larger than the time scale of the sampling values, significantly reducing the amount of data needed by the wave form parameter representation.
摘要翻译：当表示所选频道的中间分辨率表示的波形的波形参数表示被导出时，由具有高时间分辨率的采样值组成的帧表示的多信道信号的选择信道可以被更高质量地编码波形参数表示，包括具有低于采样值的高时间分辨率的时间分辨率并且高于由帧重复率定义的时间分辨率的中间波形参数序列。具有中间分辨率的波形参数表示可用于对重建的信道进行整形以检索具有接近所选择的原始信道中的那一个的信号包络的信道。进行整形的时间标度比框架处理的时间标度短，从而提高重构信道的质量。另一方面，成形时间尺度大于采样值的时间尺度，显着减少波形参数表示所需的数据量。

27. 发明授权

US08843378B2 Multi-channel synthesizer and method for generating a multi-channel output signal 有权
标题翻译：用于产生多通道输出信号的多通道合成器和方法
公开(公告)号：US08843378B2
公开(公告)日：2014-09-23
申请号：US10883538
申请日：2004-06-30
申请人： Juergen Herre , Sascha Disch , Johannes Hilpert , Christian Ertel , Andreas Hoelzer , Claus-Christian Spenger
发明人： Juergen Herre , Sascha Disch , Johannes Hilpert , Christian Ertel , Andreas Hoelzer , Claus-Christian Spenger
IPC分类号： G06F15/00 , G10L19/00 , G10L21/00 , H04H40/54 , H04R5/00 , H04S3/00 , G10L19/008
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： A multi-channel synthesizer includes a post processor for determining post processed reconstruction parameters or quantities derived from the reconstruction parameter for an actual time portion of the input signal so that the post processed reconstruction parameter or the post processed quantity is different from the corresponding quantized and inversely quantized reconstruction parameter in that the value of the post processed reconstruction parameter or the derived quantity is not bound by the quantization step size. A multi-channel reconstructor uses the post-processed reconstruction parameter for reconstructing the multi-channel output signal. By post processing reconstruction parameters in connection with multi-channel encoding/decoding allows a low data rate on the one hand and a high quality on the other hand, since strong changes in the reconstructed multi-channel output signal because of a large quantization step size for the reconstruction parameter, which is preferable because of low bit rate requirements, are reduced.
摘要翻译：多通道合成器包括用于确定后处理的重构参数的后处理器或者对于输入信号的实际时间部分从重建参数导出的量，使得后处理的重构参数或后处理量与相应的量化和反量化重建参数，因为后处理重构参数或导出量的值不受量化步长的约束。多通道重建器使用后处理重构参数来重建多通道输出信号。通过后处理，与多信道编码/解码相关的重构参数一方面允许低数据速率和高质量，因为由于大量化步长而导致的重构多通道输出信号的强烈变化对于由于低比特率要求而优选的重构参数被减少。

28. 发明授权

US08687829B2 Apparatus and method for multi-channel parameter transformation 有权
标题翻译：多通道参数变换装置及方法
公开(公告)号：US08687829B2
公开(公告)日：2014-04-01
申请号：US12445699
申请日：2007-10-05
申请人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
发明人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Dirk Jeroen Breebaart , Werner Oomen
IPC分类号： H04R5/02
CPC分类号： G10L19/173 , G10L19/008 , H04S2420/03
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeaker configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters have an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.
摘要翻译：参数变换器产生电平参数，指示与多声道扬声器配置相关联的多声道音频信号的第一和第二音频声道之间的能量关系。基于与下混通道相关联的多个音频对象的对象参数生成电平参数，该对象参数是使用与音频对象相关联的对象音频信号生成的。对象参数具有指示对象音频信号的能量的能量参数。为了得出一致性和等级参数，使用参数生成器，其结合能量参数和对象渲染参数，其依赖于所需的呈现配置。

29. 发明申请

US20110013790A1 Apparatus and Method for Multi-Channel Parameter Transformation 有权
标题翻译：多通道参数变换装置与方法
公开(公告)号：US20110013790A1
公开(公告)日：2011-01-20
申请号：US12445699
申请日：2007-10-05
申请人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Jeroen Breebaart , Werner Oomen
发明人： Johannes Hilpert , Karsten Linzmeier , Juergen Herre , Ralph Sperschneider , Andreas Hoelzer , Lars Villemoes , Jonas Engdegard , Heiko Purnhagen , Kristofer Kjoerling , Jeroen Breebaart , Werner Oomen
IPC分类号： H04R5/02
CPC分类号： G10L19/173 , G10L19/008 , H04S2420/03
摘要： A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeaker configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters have an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.
摘要翻译：参数变换器产生电平参数，指示与多声道扬声器配置相关联的多声道音频信号的第一和第二音频声道之间的能量关系。基于与下混通道相关联的多个音频对象的对象参数生成电平参数，该对象参数是使用与音频对象相关联的对象音频信号生成的。对象参数具有指示对象音频信号的能量的能量参数。为了得出一致性和等级参数，使用参数生成器，其结合能量参数和对象渲染参数，其依赖于所需的呈现配置。

30. 发明申请

US20080008323A1 Concept for Combining Multiple Parametrically Coded Audio Sources 有权
标题翻译：用于组合多个参数编码音频源的概念
公开(公告)号：US20080008323A1
公开(公告)日：2008-01-10
申请号：US11739544
申请日：2007-04-24
申请人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
发明人： Johannes Hilpert , Juergen Herre , Karsten Linzmeier , Oliver Hellmuth , Thorsten Kastner
IPC分类号： H04B1/66 , H04S3/00
CPC分类号： H04N7/15 , G10L19/008
摘要： According to the present invention, multiple parametrically encoded audio signals can be efficiently combined using an audio signal generator, which generates an audio output signal by combining the down-mix channels and the associated parameters of the audio signals directly within the parameter domain, i.e. without reconstructing or decoding the individual input audio signals prior to the generation of the audio output signal. This is achieved by direct mixing of the associated down-mix channels of the individual input signals. It is one key feature of the present invention that the combination of the down-mix channels is achieved by simple, computationally inexpensive arithmetic operations.
摘要翻译：根据本发明，可以使用音频信号发生器有效地组合多个参数编码的音频信号，该音频信号发生器通过直接在参数域内组合缩减混音频道和音频信号的相关参数来生成音频输出信号，即，没有在产生音频输出信号之前重建或解码各个输入音频信号。这通过直接混合各个输入信号的相关联的低通滤波通道实现。本发明的一个关键特征是通过简单的，计算上便宜的算术运算来实现降混信道的组合。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式