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公开(公告)号：US07164771B1
公开(公告)日：2007-01-16
申请号：US09577649
申请日：2000-05-24
IPC分类号： H04R29/00
CPC分类号： G10L25/69
摘要： A process and system for providing objective quality measurement of a target audio signal. Reference and target signals are processed by a peripheral ear processor, and compared to provide a basilar degradation signal. A cognitive processor employing a neural network then determines an objective quality measure from the basilar degradation signal by calculating certain key cognitive model components.
摘要翻译： 一种用于提供目标音频信号的客观质量测量的过程和系统。 参考和目标信号由外围耳朵处理器处理，并进行比较以提供基础降解信号。 采用神经网络的认知处理器然后通过计算某些关键的认知模型分量来确定来自基因降解信号的客观质量度量。
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公开(公告)号：US08751029B2
公开(公告)日：2014-06-10
申请号：US13270022
申请日：2011-10-10
CPC分类号： H04S5/005 , G01H7/00 , G10L2021/02082 , H04R29/00 , H04S7/301
摘要： A reverberant characteristic of an acoustic space is superimposed on an audio signal that is received by an apparatus. The apparatus decomposes the audio signal into an estimated original dry signal component and an estimated reverberant characteristic of the acoustic space. Estimation of the original dry signal component and the reverberant characteristic of the acoustic space is based on determination of an estimated impulse response of the acoustic space from the received audio signal. Once the audio signal is decomposed, the estimated original dry signal component and the estimated reverberant characteristic of the acoustic space may be independently modified by the apparatus. The modified or unmodified estimated original dry signal component and estimated reverberant characteristic of the acoustic space may be combined by the apparatus to produce one or more adjusted frequency spectra.
摘要翻译： 声学空间的混响特性叠加在由装置接收的音频信号上。 该装置将音频信号分解成估计的原始干信号分量和声学空间的估计混响特性。 原始干信号分量的估计和声空间的混响特性是基于从接收到的音频信号确定声空间的估计脉冲响应。 一旦音频信号被分解，估计的原始干燥信号分量和声学空间的估计混响特性可以被该装置独立地修改。 修改或未修改的估计原始干信号分量和声空间的估计混响特性可以由该装置组合以产生一个或多个调整频谱。
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公开(公告)号：US08670850B2
公开(公告)日：2014-03-11
申请号：US12054388
申请日：2008-03-25
CPC分类号： H04S5/005 , G01H7/00 , G10L2021/02082 , H04R29/00 , H04S7/301
摘要： An audio signal processing system is configured to separate an audio signal into a dry signal component and one or more reverberant signal components. The dry signal component and the reverberant signal components can be separately modified and then recombined to form a processed audio signal. Alternatively, the dry signal component may be combined with an artificial reverberation component to form the processed audio signal. Modification of the reverberation signal component and generation of the artificial reverberation component may be performed in order to modify the acoustic characteristics of an acoustic space in which the audio signal is driving loudspeakers. The audio signal may be a pre-recorded audio signal or a live audio signal generated inside or outside the acoustic space.
摘要翻译： 音频信号处理系统被配置为将音频信号分离成干信号分量和一个或多个混响信号分量。 干信号分量和混响信号分量可以单独修改，然后重组以形成经处理的音频信号。 或者，干信号分量可以与人造混响分量组合以形成经处理的音频信号。 可以执行混响信号分量的修改和人造混响分量的产生，以便改变其中音频信号驱动扬声器的声学空间的声学特性。 音频信号可以是在声学空间内部或外部产生的预先记录的音频信号或实时音频信号。
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4.发明授权System for extracting and changing the reverberant content of an audio input signal 有权用于提取和改变音频输入信号的混响内容的系统公开(公告)号：US08036767B2
公开(公告)日：2011-10-11
申请号：US11533707
申请日：2006-09-20
CPC分类号： H04S5/005 , G01H7/00 , G10L2021/02082 , H04R29/00 , H04S7/301
摘要： A method and apparatus for extracting and changing the reverberant content of an input signal is provided. The method of estimating an impulse response for a reverberant system includes sampling a signal from a reverberant system, having an impulse response, into a sequence of blocks, for each block of the sequence, determining a magnitude in dependence upon a magnitude of a previous block, forming an estimate of the impulse response using determined magnitudes as parameters for a finite impulse response filter. The method of creating a multi-channel signal using a signal with fewer channels from a reverberant system includes sampling the signal from a reverberant system, having an impulse response, into a sequence of blocks, for each block of the sequence, determining a magnitude in dependence upon a magnitude of a previous block, forming an estimate of the impulse response using determined magnitudes as parameters for a finite impulse response filter, applying an inverse of the estimated impulse response to the signal to derive at least one of a direct signal component and a reverberant signal component, and recombining the direct signal component and the reverberant signal component to create a multi-channel signal.
摘要翻译： 提供了一种用于提取和改变输入信号的混响内容的方法和装置。 估计混响系统的脉冲响应的方法包括对具有脉冲响应的混响系统的信号对序列的每个块进行采样，根据前一个块的幅度来确定幅度 ，使用确定的幅度作为有限脉冲响应滤波器的参数形成脉冲响应的估计。 使用具有来自混响系统的信道较少的信号来创建多声道信号的方法包括对具有脉冲响应的混响系统的信号对序列的每个块进行采样，以确定幅度 依赖于先前块的幅度，使用确定的幅度形成脉冲响应的估计作为有限脉冲响应滤波器的参数，将所估计的脉冲响应的反相应用于信号以导出直接信号分量和 混响信号分量，并重新组合直接信号分量和混响信号分量以产生多声道信号。
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公开(公告)号：US09372251B2
公开(公告)日：2016-06-21
申请号：US12897709
申请日：2010-10-04
CPC分类号： G01S3/8006 , H04S3/008 , H04S5/005 , H04S7/30 , H04S2400/01 , H04S2400/11 , H04S2400/15
摘要： A sound processing system receives an audio input signal that includes at least two different input channels of audio content. The sound processing system dissects the audio input signal to separate sources of audible sound included in the audio input signal into sound source vectors. Separation of the sources of audible sound into sound source vectors may be based on a perceived location of each of the sources of audible sound within a listener perceived sound stage. The sound source vectors may represent spatial slices across the listener perceived sound stage that may be individually and independently processed with the sound processing system. Following processing, the sound source vectors may be selectively assembled to form an audio output signal having output channels used to drive respective loudspeakers. Since the sources of audible sound are separated and independent, the audible sound sources may be included on any one or more of the output channels.
摘要翻译： 声音处理系统接收包括音频内容的至少两个不同输入声道的音频输入信号。 声音处理系统解析音频输入信号，将音频输入信号中包括的声音源分离成声源向量。 将可听见的声音源分离成声源向量可以基于在听众感知的声音阶段内的每个声音源的感知位置。 声源矢量可以表示可以用声音处理系统单独和独立地处理的听众感知的声级的空间片段。 在处理之后，可以选择性地组合声源向量以形成具有用于驱动相应扬声器的输出通道的音频输出信号。 由于可听见的声音源是分离和独立的，可听声音源可以包括在任何一个或多个输出声道上。
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6.发明授权Method and apparatus for changing the frequency content of an input signal and for changing perceptibility of a component of an input signal 失效用于改变输入信号的频率内容并改变输入信号的分量的感知性的方法和装置公开(公告)号：US06738445B1
公开(公告)日：2004-05-18
申请号：US09449827
申请日：1999-11-26
IPC分类号： H04L2300
CPC分类号： H04L25/03828
摘要： There is disclosed a method and apparatus for changing the frequency content of an input spectrum and a method and apparatus for reducing the perceptibility of a component of an input signal. The first aspect involves adjusting frequency components of the input spectrum in response to a time varying adjustment frequency spectrum to produce an output frequency spectrum including adjusted frequency components of the input spectrum. The time varying input spectrum may be produced by selectively addressing a number of individual sub-spectra at different times. In addition, the input spectrum may be divided into a plurality of sub-spectra and each sub-spectrum may be operated on separately by a different adjustment frequency spectrum at different times. In addition, a perceptual model may be used to enhance the adjustment of the input spectrum or sub-spectra. The second aspect involves adjusting frequency components of a first analysis windowed frame of input time samples in response to an adjustment frequency spectrum, to produce an output frame of output time samples and synthesis windowing the output frame to produce a synthesis windowed frame of output time samples representing a time varying output signal having reduced perceptibility of the component. Different windows are used to produce different input spectra for use as the input spectrum on which the adjustment is made and for use in a perceptual model to provide maximum energy to the perceptual model to enable it to have its full effect in producing the adjustment frequency spectrum.
摘要翻译： 公开了一种用于改变输入频谱的频率内容的方法和装置，以及用于降低输入信号的分量的感知性的方法和装置。 第一方面涉及响应于时变调整频谱来调节输入频谱的频率分量，以产生包括输入频谱的经调整的频率分量的输出频谱。 可以通过在不同时间选择性地寻址多个单个子光谱来产生时变输入光谱。 此外，输入频谱可以被分成多个子频谱，并且每个子频谱可以在不同时间分别由不同的调整频谱操作。 此外，可以使用感知模型来增强输入光谱或子光谱的调整。 第二方面涉及响应于调整频谱来调整输入时间样本的第一分析窗口化帧的频率分量，以产生输出时间样本的输出帧，并且合成窗口化输出帧以产生输出时间样本的合成窗口化帧 表示具有降低的部件感知性的时变输出信号。 不同的窗口用于产生不同的输入光谱，用作进行调整的输入光谱，并在感知模型中用于向感知模型提供最大能量，以使其能够在产生调整频谱方面发挥其全部作用 。
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公开(公告)号：US09264834B2
公开(公告)日：2016-02-16
申请号：US13544490
申请日：2012-07-09
IPC分类号： H04S5/00 , G01H7/00 , H04S7/00 , G10L21/0208 , H04R29/00
CPC分类号： H04S5/005 , G01H7/00 , G10L2021/02082 , H04R29/00 , H04S7/301
摘要： An audio signal processing system is configured to separate an audio signal into a dry signal component and one or more reverberant signal components. The dry signal component and the reverberant signal components can be separately modified and then recombined to form a processed audio signal. Alternatively, the dry signal component may be combined with an artificial reverberation component to form the processed audio signal. Modification of the reverberation signal component and generation of the artificial reverberation component may be performed in order to modify the acoustic characteristics of an acoustic space in which the audio signal is driving loudspeakers. The audio signal may be a pre-recorded audio signal or a live audio signal generated inside or outside the acoustic space.
摘要翻译： 音频信号处理系统被配置为将音频信号分离成干信号分量和一个或多个混响信号分量。 干信号分量和混响信号分量可以单独修改，然后重组以形成经处理的音频信号。 或者，干信号分量可以与人造混响分量组合以形成经处理的音频信号。 可以执行混响信号分量的修改和人造混响分量的产生，以便改变其中音频信号驱动扬声器的声学空间的声学特性。 音频信号可以是在声学空间内部或外部产生的预先记录的音频信号或实时音频信号。
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公开(公告)号：US09100766B2
公开(公告)日：2015-08-04
申请号：US12897707
申请日：2010-10-04
CPC分类号： H04R5/02 , H04R2499/13 , H04S1/002 , H04S3/002 , H04S7/305 , H04S2400/11
摘要： A multichannel compensating audio system includes first and second compensation channels to psychoacoustically minimize deviations in a target response, to psychoacoustically move the physical position of a speaker and/or to psychoacoustically provide a substantially equal magnitude of sound from a plurality of speakers in a plurality of different listening positions. The first compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a first compensated audio signal from a first audio signal. The second compensation channel may include a series connected delay circuit, a level adjuster circuit and a frequency equalizer circuit that generates a second compensated audio signal from a second audio signal. A first summing circuit is configured to receive at least the first audio signal and the second compensated audio signal and generate a first output signal for provision to a first speaker. A second summing circuit is configured to receive the second audio signal and the first compensated audio signal and generate a second output signal for provision to a second speaker. The first and second output signals may be output by the first and second speakers into a listening space and are acoustically perceived by a listener.
摘要翻译： 多通道补偿音频系统包括第一和第二补偿通道，用于心理声学地使目标响应中的偏差最小化，以心理声学地移动扬声器的物理位置和/或在心理声学上提供来自多个扬声器中的多个扬声器的基本上相等的声音量 不同的听力位置。 第一补偿通道可以包括串联连接的延迟电路，电平调节器电路和从第一音频信号产生第一补偿音频信号的频率均衡器电路。 第二补偿通道可以包括串联连接的延迟电路，电平调节器电路和从第二音频信号产生第二补偿音频信号的频率均衡器电路。 第一求和电路被配置为至少接收第一音频信号和第二经补偿的音频信号，并产生用于提供给第一扬声器的第一输出信号。 第二求和电路被配置为接收第二音频信号和第一补偿音频信号，并产生用于提供给第二扬声器的第二输出信号。 第一和第二输出信号可以由第一和第二扬声器输出到收听空间中并被听众声学感知。
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公开(公告)号：US20130272528A1
公开(公告)日：2013-10-17
申请号：US13447477
申请日：2012-04-16
CPC分类号： G06F13/1663
摘要： A device for processing a signal includes a processing module used to process data in a domain. The device includes domain conversion hardware and memory, both separate from the processing module. The memory receives and sends data represented in a first domain to the domain conversion hardware. The domain conversion hardware converts the first domain data into the second domain data that may be used or processed by the processing module. The second domain data is then accessed and used by the processing module for processing.
摘要翻译： 用于处理信号的装置包括用于处理域中的数据的处理模块。 该设备包括域转换硬件和内存，与处理模块分开。 存储器接收并发送在第一域中表示的数据到域转换硬件。 域转换硬件将第一域数据转换成可由处理模块使用或处理的第二域数据。 然后由处理模块访问并使用第二域数据进行处理。
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10.发明授权公开(公告)号：US08180067B2
公开(公告)日：2012-05-15
申请号：US11412784
申请日：2006-04-28
CPC分类号： H04R3/005 , H04M9/082 , H04R27/00 , H04R2201/107 , H04R2201/403 , H04R2420/07 , H04R2430/20 , H04R2499/13
摘要： An apparatus for selectively extracting components of an input signal comprises a plurality of microphones for detecting an audio signal in a plurality of spaced locations. A plurality of signal samplers sample each spaced version of the audio signal. A microphone pattern processor derives a reference signal, a null signal and a core signal from the sampled signals. An adjustment frequency spectrum generator coupled to the null and reference signals generates an adjustment frequency spectrum signal that is applied to the core signal. An audio signal regenerator provides an output audio signal from the adjusted core signal. The apparatus can be used in a wireless device to pick up a speaker's voice in a noisy environment.
摘要翻译： 用于选择性地提取输入信号的分量的装置包括用于检测多个间隔位置中的音频信号的多个麦克风。 多个信号采样器对音频信号的每个间隔版本进行采样。 麦克风图案处理器从采样信号中导出参考信号，零信号和核心信号。 耦合到零和参考信号的调整频谱发生器产生施加到核心信号的调整频谱信号。 音频信号再生器从调整的核心信号提供输出音频信号。 该装置可用于无线设备中以在嘈杂的环境中拾取扬声器的声音。
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