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1. 发明授权

US08280743B2 Channel reconfiguration with side information 有权
标题翻译：信道重配置与侧信息
公开(公告)号：US08280743B2
公开(公告)日：2012-10-02
申请号：US11999159
申请日：2007-12-03
申请人： Alan Jeffrey Seefeldt , Mark Stuart Vinton , Charles Quito Robinson
发明人： Alan Jeffrey Seefeldt , Mark Stuart Vinton , Charles Quito Robinson
IPC分类号： G10L21/04
CPC分类号： H04S3/008 , G10L19/008 , H04S5/005 , H04S2420/03
摘要： During production, at least one audio signal is processed in order to derive instructions for channel reconfiguring it. The at least one audio signal and the instructions are stored or transmitted. During consumption, the at least one audio signal is channel reconfigured in accordance with the instructions. Channel reconfiguring includes upmixing, downmixing, and spatial reconfiguration. By determining the channel reconfiguration instructions during production, processing resources during consumption are reduced.
摘要翻译：在生产期间，处理至少一个音频信号以便导出用于信道重新配置的指令。存储或发送至少一个音频信号和指令。在消费期间，至少一个音频信号是根据指令重新配置的信道。通道重新配置包括上混合，下混合和空间重新配置。通过在生产期间确定信道重配置指令，减少了消费过程中的资源处理。

2. 发明授权

US08015018B2 Multichannel decorrelation in spatial audio coding 有权
标题翻译：空间音频编码中的多通道去相关
公开(公告)号：US08015018B2
公开(公告)日：2011-09-06
申请号：US11661010
申请日：2005-08-24
申请人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
发明人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
IPC分类号： G10L19/00 , H04R5/00
CPC分类号： G10L19/008
摘要： Each of N audio signals are filtered with a unique decorrelating filter (38) characteristic, the characteristic being a causal linear time-invariant characteristic in the time domain or the equivalent thereof in the frequency domain, and, for each decorrelating filter characteristic, combining (40, 44, 46), in a time and frequency varying manner, its input (Zi) and output (Z-i) signals to provide a set of N processed signals (X i). The set of decorrelation filter characteristics are designed so that all of the input and output signals are approximately mutually decorrelated. The set of N audio signals may be synthesized from M audio signals by upmixing (36), where M is one or more and N is greater than M.
摘要翻译：每个N个音频信号用唯一的去相关滤波器（38）特性进行滤波，该特性是时域中的因果线性时间不变特性或其在频域中的等效特性，并且对于每个去相关滤波器特性，组合（ 40,44,46），以时间和频率变化的方式，其输入（Zi）和输出（Zi）信号以提供一组N个处理信号（X i）。设计了一组去相关滤波器特性，使得所有的输入和输出信号大致相互解相关。 N个音频信号的集合可以通过上混合（36）从M个音频信号合成，其中M是一个或多个，N大于M.

3. 发明申请

US20090222272A1 Controlling Spatial Audio Coding Parameters as a Function of Auditory Events 审中-公开
标题翻译：控制空间音频编码参数作为听觉事件的功能
公开(公告)号：US20090222272A1
公开(公告)日：2009-09-03
申请号：US11989974
申请日：2006-07-24
申请人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
发明人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
IPC分类号： G10L21/00
CPC分类号： H04S3/008 , G10L19/008 , H04S2420/03
摘要： An audio encoder or encoding method receives a plurality of input channels and generates one or more audio output channels and one or more parameters describing desired spatial relationships among a plurality of audio channels that may be derived from the one or more audio output channels, by detecting changes in signal characteristics with respect to lime in one or more of the plurality of audio input channels, identifying as auditory event boundaries changes in signal characteristics with respect to lime in the one or more of the plurality of audio input channels, an audio segment between consecutive boundaries constituting an auditory event in the channel or channels, and generating all or some of the one or more parameters al least partly in response to auditory events and/or the degree of change in signal characteristics associated with the auditory event boundaries. An auditory-event-responsive audio upmixer or upmixing method is also disclosed.
摘要翻译：音频编码器或编码方法接收多个输入通道，并且通过检测一个或多个音频输出通道，并产生一个或多个音频输出通道以及描述可以从一个或多个音频输出通道导出的多个音频通道之间的期望的空间关系的一个或多个参数在多个音频输入通道中的一个或多个中相对于石灰的信号特性的变化，标识为听觉事件边界相对于多个音频输入通道中的一个或多个中的石灰的信号特性的变化，在通道或通道中构成听觉事件的连续边界，以及响应于听觉事件和/或与听觉事件边界相关联的信号特征的变化程度，至少部分地产生一个或多个参数中的全部或一些。还公开了一种听觉事件响应音频上混混合器或上混合方法。

4. 发明申请

US20080126104A1 Multichannel Decorrelation In Spatial Audio Coding 有权
标题翻译：空间音频编码中的多通道解相关
公开(公告)号：US20080126104A1
公开(公告)日：2008-05-29
申请号：US11661010
申请日：2005-08-24
申请人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
发明人： Alan Jeffrey Seefeldt , Mark Stuart Vinton
IPC分类号： G10L21/04
CPC分类号： G10L19/008
摘要： Each of N audio signals are filtered with a unique decorrelating filter (38) characteristic, the characteristic being a causal linear time-invariant characteristic in the time domain or the equivalent thereof in the frequency domain, and, for each decorrelating filter characteristic, combining (40, 44, 46), in a time and frequency varying manner, its input (Zi) and output (Z-i) signals to provide a set of N processed signals (X i). The set of decorrelation filter characteristics are designed so that all of the input and output signals are approximately mutually decorrelated. The set of N audio signals may be synthesized from M audio signals by upmixing (36), where M is one or more and N is greater than M.
摘要翻译：每个N个音频信号用唯一的去相关滤波器（38）特性进行滤波，该特性是时域中的因果线性时间不变特性或其在频域中的等效特性，并且对于每个去相关滤波器特性，组合（ 40,44,46），以时间和频率变化的方式，其输入（Zi）和输出（Zi）信号以提供一组N个处理信号（X i）。设计了一组去相关滤波器特性，使得所有的输入和输出信号大致相互解相关。 N个音频信号的集合可以通过上混合（36）从M个音频信号合成，其中M是一个或多个，N大于M.

5. 发明授权

US08255211B2 Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering 有权
标题翻译：使用频域维纳滤波进行空间音频编码的时域包络整形
公开(公告)号：US08255211B2
公开(公告)日：2012-08-28
申请号：US11660893
申请日：2005-08-15
申请人： Mark Stuart Vinton , Alan Jeffrey Seefeldt
发明人： Mark Stuart Vinton , Alan Jeffrey Seefeldt
IPC分类号： G10L19/02
CPC分类号： G10L19/008 , G10L19/02
摘要： Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.
摘要翻译：某些类型的参数空间编码编码器使用信道间幅度差异，信道间时间差和信道间相干或相关来建立由解码器用于构造原始声场的近似的多声道声场的参数模型。然而，这样的参数模型不会重建声场的信道的原始时间包络，这被发现对于一些音频信号是非常重要的。本发明提供了在空间编码系统中重构一个或多个解码信道的时间包络，以更好地匹配一个或多个原始时间包络。

6. 发明授权

US07945449B2 Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering 有权
标题翻译：使用频域维纳滤波进行空间音频编码的时域包络整形
公开(公告)号：US07945449B2
公开(公告)日：2011-05-17
申请号：US11888651
申请日：2007-07-31
申请人： Mark Stuart Vinton , Alan Jeffrey Seefeldt
发明人： Mark Stuart Vinton , Alan Jeffrey Seefeldt
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , G10L19/02
摘要： Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.
摘要翻译：某些类型的参数空间编码编码器使用信道间幅度差异，信道间时间差和信道间相干或相关来建立由解码器用于构造原始声场的近似的多声道声场的参数模型。然而，这样的参数模型不会重建声场的信道的原始时间包络，这被发现对于一些音频信号是非常重要的。本发明提供了在空间编码系统中重构一个或多个解码信道的时间包络，以更好地匹配一个或多个原始时间包络。

7. 发明申请

US20120321096A1 Audio Gain Control Using Specific-Loudness-Based Auditory Event Detection 有权
标题翻译：使用基于特定响度的听觉事件检测的音频增益控制
公开(公告)号：US20120321096A1
公开(公告)日：2012-12-20
申请号：US13464102
申请日：2012-05-04
申请人： Brett Graham Crockett , Alan Jeffrey Seefeldt
发明人： Brett Graham Crockett , Alan Jeffrey Seefeldt
IPC分类号： H03G3/20 , H04R29/00
CPC分类号： H03G3/3005 , G10L21/038 , G10L25/21 , H03G1/00 , H03G3/3089 , H03G7/007 , H03G9/005 , H04R3/04 , H04R2430/03
摘要： In one disclosed aspect, dynamic gain modifications are applied to an audio signal at least partly in response to auditory events. In another aspect, an input channel is divided into auditory events by detecting changes in a measurable characteristic of the input signal with respect to time.
摘要翻译：在一个公开的方面中，动态增益修改至少部分地响应于听觉事件应用于音频信号。在另一方面，通过检测输入信号相对于时间的可测量特性的变化，将输入信道分成听觉事件。

8. 发明授权

US08144881B2 Audio gain control using specific-loudness-based auditory event detection 有权
标题翻译：使用特定基于响度的听觉事件检测的音频增益控制
公开(公告)号：US08144881B2
公开(公告)日：2012-03-27
申请号：US12226698
申请日：2007-03-30
申请人： Brett Graham Crockett , Alan Jeffrey Seefeldt
发明人： Brett Graham Crockett , Alan Jeffrey Seefeldt
IPC分类号： H04R29/00 , H03G5/00
CPC分类号： H03G3/3005 , G10L21/038 , G10L25/21 , H03G1/00 , H03G3/3089 , H03G7/007 , H03G9/005 , H04R3/04 , H04R2430/03
摘要： In one disclosed aspect, dynamic gain modifications are applied to an audio signal at least partly in response to auditory events and/or the degree of change in signal characteristics associated with said auditory event boundaries. In another aspect, an audio signal is divided into auditory events by comparing the difference in specific loudness between successive time blocks of the audio signal.
摘要翻译：在一个公开的方面，动态增益修改至少部分地响应于与所述听觉事件边界相关联的听觉事件和/或信号特征的变化程度而应用于音频信号。在另一方面，通过比较音频信号的连续时间块之间的特定响度的差异，将音频信号分成听觉事件。

9. 发明申请

US20110311062A1 Loudness Modification of Multichannel Audio Signals 有权
标题翻译：多声道音频信号的响度修正
公开(公告)号：US20110311062A1
公开(公告)日：2011-12-22
申请号：US13215058
申请日：2011-08-22
申请人： Alan Jeffrey Seefeldt , Michael John Smithers
发明人： Alan Jeffrey Seefeldt , Michael John Smithers
IPC分类号： H04R5/00
CPC分类号： H03G3/20 , H03G3/10 , H03G9/005 , H03G9/025 , H03G9/18 , H04R5/04 , H04S2400/13
摘要： Scaling, by a desired amount sm, the overall perceived loudness Lm of a multichannel audio signal, wherein perceived loudness is a nonlinear function of signal power P, by scaling the perceived loudness of each individual channel Lc by an amount substantially equal to the desired amount of scaling of the overall perceived loudness of all channels sm, subject to accuracy in calculations and the desired accuracy of the overall perceived loudness scaling sm. The perceived loudness of each individual channel may be scaled by changing the gain of each individual channel, wherein gain is a scaling of a channel's power. Optionally, in addition, the loudness scaling applied to each channel may be modified so as to reduce the difference between the actual overall loudness scaling and the desired amount of overall loudness scaling.
摘要翻译：通过将每个单独信道Lc的感知响度缩放基本上等于所需量的量，将感知响度定为信号功率P的非线性函数，以期望量sm缩放多声道音频信号的整体感知响度Lm 在所有频道sm的整体感知响度的缩放，受到计算的准确性和整体感知响度缩放sm的期望精度。可以通过改变每个单独信道的增益来缩放每个单独信道的感知响度，其中增益是信道功率的缩放。可选地，另外，应用于每个通道的响度缩放可以被修改，以便减小实际的整体响度缩放与期望的总响度缩放量之间的差异。

10. 发明申请

US20100202632A1 LOUDNESS MODIFICATION OF MULTICHANNEL AUDIO SIGNALS 有权
标题翻译：多声道音频信号的修改
公开(公告)号：US20100202632A1
公开(公告)日：2010-08-12
申请号：US12225988
申请日：2007-03-14
申请人： Alan Jeffrey Seefeldt , Michael John Smithers
发明人： Alan Jeffrey Seefeldt , Michael John Smithers
IPC分类号： H03G3/00
CPC分类号： H03G3/20 , H03G3/10 , H03G9/005 , H03G9/025 , H03G9/18 , H04R5/04 , H04S2400/13
摘要： Scaling, by a desired amount sm, the overall perceived loudness Lm of a multichannel audio signal, wherein perceived loudness is a nonlinear function of signal power P, by scaling the perceived loudness of each individual channel Lc by an amount substantially equal to the desired amount of scaling of the overall perceived loudness of all channels sm, subject to accuracy in calculations and the desired accuracy of the overall perceived loudness scaling sm. The perceived loudness of each individual channel may be scaled by changing the gain of each individual channel, wherein gain is a scaling of a channel's power. Optionally, in addition, the loudness scaling applied to each channel may be modified so as to reduce the difference between the actual overall loudness scaling and the desired amount of overall loudness scaling
摘要翻译：通过将每个单独信道Lc的感知响度缩放基本上等于所需量的量，将感知响度定为信号功率P的非线性函数，以期望量sm缩放多声道音频信号的整体感知响度Lm 在所有频道sm的整体感知响度的缩放，受到计算的准确性和整体感知响度缩放sm的期望精度。可以通过改变每个单独信道的增益来缩放每个单独信道的感知响度，其中增益是信道功率的缩放。可选地，此外，应用于每个通道的响度缩放可以被修改，以便减小实际的整体响度缩放与所需量的总响度缩放之间的差异

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