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公开(公告)号：US11651762B2
公开(公告)日：2023-05-16
申请号：US17568588
申请日：2022-01-04
申请人： Magic Leap, Inc.
CPC分类号： G10K15/08
摘要： Systems and methods for providing accurate and independent control of reverberation properties are disclosed. In some embodiments, a system may include a reverberation processing system, a direct processing system, and a combiner. The reverberation processing system can include a reverb initial power (RIP) control system and a reverberator. The RIP control system can include a reverb initial gain (RIG) and a RIP corrector. The RIG can be configured to apply a RIG value to the input signal, and the RIP corrector can be configured to apply a RIP correction factor to the signal from the RIG. The reverberator can be configured to apply reverberation effects to the signal from the RIP control system. In some embodiments, one or more values and/or correction factors can be calculated and applied such that the signal output from a component in the reverberation processing system is normalized to a predetermined value (e.g., unity (1.0)).
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公开(公告)号：US09928728B2
公开(公告)日：2018-03-27
申请号：US14274571
申请日：2014-05-09
摘要： A method includes generating an audio signal, generating a control signal that is configured to control a haptic feedback device that is incorporated into a device for delivering audio based on the audio signal to a user, and embedding the control signal in the audio signal by using a pseudorandom signal to form an encoded audio signal. Another method includes receiving a signal that includes an audio signal having an embedded control signal, recovering the control signal from the received signal by using a pseudorandom signal, using the recovered control signal to control a haptic feedback device that is incorporated into a device for delivering audio, recovering the audio signal from the received signal, and using the recovered audio signal to generate audio in the device for delivering audio. Systems perform similar steps, and non-transitory computer readable storage mediums each store one or more computer programs.
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公开(公告)号：US09202450B2
公开(公告)日：2015-12-01
申请号：US13554142
申请日：2012-07-20
申请人： Mikko Pekka Vainiala
发明人： Mikko Pekka Vainiala
CPC分类号： G10H1/16 , G10H3/187 , G10H2210/311 , G10H2250/111 , H04R29/001
摘要： A method of measuring an impulse response of an amplifier coupled in operation to a loudspeaker arrangement includes: (a) coupling directly to a connection between the amplifier and the loudspeaker arrangement for obtaining access to a drive signal (Samp) applied to the loudspeaker arrangement to generate an acoustic output (S2); (b) disposing a microphone arrangement for receiving the acoustic output (S2) of the loudspeaker arrangement; (c) using a test signal generator to apply a test signal (Ssw) to an input of the amplifier; and (d) receiving at a digital signal processing arrangement (DSP, 210) at least the drive signal (Samp) and the acoustic output (S2) corresponding to the test signal (Ssw) and performing on these signals a signal processing operation for determining an impulse response for at least one of: the amplifier, the loudspeaker arrangement.
摘要翻译： 测量在操作中耦合到扬声器装置的放大器的脉冲响应的方法包括：（a）直接耦合到放大器和扬声器装置之间的连接，以获得对应用于扬声器装置的驱动信号（Samp）的访问 产生声输出（S2）; （b）设置用于接收扬声器装置的声输出（S2）的麦克风装置; （c）使用测试信号发生器将测试信号（Ssw）施加到放大器的输入端; 以及（d）至少在数字信号处理装置（DSP，210）处接收对应于测试信号（Ssw）的驱动信号（Samp）和声输出（S2），并对这些信号执行用于确定的信号处理操作 对于放大器，扬声器布置中的至少一个的脉冲响应。
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公开(公告)号：US5905221A
公开(公告)日：1999-05-18
申请号：US786283
申请日：1997-01-22
摘要： The present invention discloses a digital processing device with smooth-clipping function and a digital musical tone synthesizing device using it. When one or a plurality of digital values are input to the digital processing device and a smooth-clipping mode is activated, an overflow during processing of the digital values is avoided as the internal resulting value of the device is scaled down before it is output. The scaling down of the internal resulting value is continuously increased in dependence on the increase of the value of the internal resulting value, such that an overflow is avoided. For example, if the digital processing device is performing a summation of two digital operands in a digital musical tone forming device, the time behavior of the resulting tone signal slope is smooth and thus the sound dynamics are improved and sound distortions are avoided during sound reproduction.
摘要翻译： 本发明公开了一种具有平滑削波功能的数字处理装置和使用它的数字乐音合成装置。 当将一个或多个数字值输入到数字处理装置并且平滑削波模式被激活时，在数字值的处理期间，由于在输出装置的内部结果值被缩小之前，所以避免了溢出。 内部结果值的缩小依赖于内部结果值的值的增加而不断增加，从而避免溢出。 例如，如果数字处理装置在数字乐音形成装置中执行两个数字操作数的求和，则所得到的音调信号斜率的时间行为是平滑的，因此改善了声音动力学，并且在声音再现期间避免了声音失真 。
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65.发明授权Signal processing apparatus and method for sound field processing of .SIGMA..DELTA. modulated digital signal 失效用于SIGMA-DELTA调制数字信号的声场处理的信号处理装置和方法
公开(公告)号：US5859603A
公开(公告)日：1999-01-12
申请号：US887324
申请日：1997-07-02
申请人： Masayoshi Noguchi , Gen Ichimura
发明人： Masayoshi Noguchi , Gen Ichimura
CPC分类号： H03M7/3013
摘要： A signal processing method and apparatus for performing special-effects processing on a 1 bit .SIGMA..DELTA. modulated signal in which, for amplitutde limiting a .SIGMA..DELTA. modulated 1-bit digital signal, the 1-bit digital signal is temporarily converted into a multi-bit signal. For re-quantizing the converted multi-bit signal, an integrator constituting a .SIGMA..DELTA. re-modulator is controlled by a limiter. This enables the 1-bit digital signal to be amplitude-controlled in the form of the digital signal without converting the 1-bit digital signal into an analog signal.
摘要翻译： 一种用于对1比特SIGMA DELTA调制信号执行特殊效果处理的信号处理方法和装置，其中对于用于限制SIGMA DELTA调制的1比特数字信号的放大器将1比特数字信号暂时转换为多比特 信号。 为了重新量化转换的多位信号，构成SIGMA DELTA再调制器的积分器由限幅器控制。 这使得1位数字信号能够以数字信号的形式进行幅度控制，而不将1位数字信号转换为模拟信号。
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公开(公告)号：US5848165A
公开(公告)日：1998-12-08
申请号：US758855
申请日：1996-12-02
申请人： Eric K. Pritchard
发明人： Eric K. Pritchard
CPC分类号： H03F1/3276 , G10H1/16 , G10H3/187 , H03F1/327 , H03G7/00
摘要： Intermodulation means for the emulation and exaggeration of an aspect of vacuum tube amplifiers by solid state, digital, speaker or other means. The intermodulation means produces intermodulation products of the input and an audio signal source which may be a spectrum-limited, filtered version of the input or the output or a spectrum-limited repetitive or random noise generator.
摘要翻译： 互调装置用于通过固态，数字，扬声器或其他方式对真空管放大器的一个方面进行仿真和夸张。 互调装置产生输入和音频信号源的互调产物，音频信号源可以是输入或输出的频谱限制，滤波版本或频谱限制的重复或随机噪声发生器。
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公开(公告)号：US5761316A
公开(公告)日：1998-06-02
申请号：US607450
申请日：1996-02-27
申请人： Eric K. Pritchard
发明人： Eric K. Pritchard
摘要： This disclosure shows the solid state emulation of elements of a thermionic emission device amplifier which distinguish it from solid state amplifiers: the output impedance of transformer impedance with plate resistance, the transfer function coupling from the driver tube to the output tubes, the non-linearity of the output tubes, the compression created by the power supply droop, the inclusion of "fat" from the power supply, bias shifting of the input, and driving the input from a non-linear network. This disclosure also depicts advantageous features not found in tube amplifiers: a means for turning it down and maintaining the tone by maintaining the interrelationships within the amplifier and fat creation from the amplifier output and from external sources. This disclosure is based upon the novel use of controlled gain and controlled impedance means.
摘要翻译： 本公开显示了热离子发射装置放大器的元件的固态仿真，其将其与固态放大器区分开：具有板电阻的变压器阻抗的输出阻抗，从驱动管耦合到输出管的传递函数，非线性 的输出管，由电源下降产生的压缩，从电源中包含“胖”，输入的偏置偏移以及从非线性网络驱动输入。 该公开内容还描述了在管放大器中没有发现的有利特征：通过保持放大器内的相互关系并且从放大器输出和外部源产生脂肪而使其向下并保持色调的装置。 本公开是基于受控增益和受控阻抗装置的新颖使用。
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公开(公告)号：US5675656A
公开(公告)日：1997-10-07
申请号：US668501
申请日：1996-07-15
CPC分类号： G10H1/16 , H03F1/327 , H03F1/3276 , H03G7/00
摘要： In a power amplifier, a control device employing a dual ganged potentiometer is connected in the feedback circuits of successive amplifier stages to increase the gain of the front end stage while simultaneously reducing the gain in a subsequent stage when the control is turned down. A distortion circuit, such as a tube compression circuit, is coupled between the stages. When the control is turned down, the compression circuit is activated at a lower level that effectively reduces the output power of the second stage. Presence and resonance controls may be provided to tailor high and low frequency damping factor of the second stage and function until the compression circuitry is activated. A ripple reduction filter is provided in a filtered supply for the drivers in the second or power amplifier stage.
摘要翻译： 在功率放大器中，采用双组合电位器的控制装置连接在连续放大器级的反馈电路中，以增加前端级的增益，同时在控制被调低时降低随后阶段的增益。 诸如管压缩电路之类的失真电路被耦合在这些级之间。 当控制被关闭时，压缩电路被激活在较低的水平，这有效地降低了第二级的输出功率。 可以提供存在和共振控制来定制第二级的高频和低频阻尼因子并且起作用，直到压缩电路被激活。 在第二或功率放大器级中的驱动器的滤波电源中提供纹波降低滤波器。
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公开(公告)号：US5633473A
公开(公告)日：1997-05-27
申请号：US357765
申请日：1994-12-16
申请人： Yasuhiko Mori , Yoshihiro Suzuki , Iwao Hamaura
发明人： Yasuhiko Mori , Yoshihiro Suzuki , Iwao Hamaura
CPC分类号： G10H3/146 , G10H5/007 , G10H2230/275 , G10H2250/435 , G10H2250/515 , G10H2250/521 , Y10S84/10 , Y10S84/12
摘要： The vibration of a vibratory element, caused by applying thereto a shock, is detected by a vibration sensor and provided as an electric shock signal to a resonance circuit. The resonance frequencies and resonance decay time of the resonance circuit can freely be adjusted. By setting the resonance frequencies and resonance decay time of the resonance circuit to arbitrary values, desired frequency components are extracted from the electric shock signal and output as a sound signal of an electronic musical instrument.
摘要翻译： 振动元件由施加冲击而引起的振动由振动传感器检测并作为电击信号提供给谐振电路。 谐振电路的谐振频率和谐振衰减时间可以自由调节。 通过将谐振电路的谐振频率和谐振衰减时间设定为任意值，从电击信号中提取所需的频率成分，作为电子乐器的声音信号输出。
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公开(公告)号：US5528532A
公开(公告)日：1996-06-18
申请号：US469765
申请日：1995-06-06
申请人： Motoyuki Shibutani
发明人： Motoyuki Shibutani
CPC分类号： H03F1/3241 , H03F3/602
摘要： A distortion circuit includes at least two distortion imparting circuits for respectively imparting different distortion characteristics to an input data, and an adder for adding output data from at least two distortion imparting circuits. When an input data having the required waveform is supplied to each of the distortion imparting circuits, the input data is respectively imparted with different distortion characteristics in each of the distortion imparting circuits. Then, the output signals from each distortion imparting circuits are added in the adder.
摘要翻译： 失真电路包括用于分别向输入数据赋予不同失真特性的至少两个失真赋予电路，以及用于将来自至少两个失真赋予电路的输出数据相加的加法器。 当向每个失真赋予电路提供具有所需波形的输入数据时，在每个失真赋予电路中分别赋予输入数据不同的失真特性。 然后，来自每个失真赋予电路的输出信号被加到加法器中。
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