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公开(公告)号：US11778409B2
公开(公告)日：2023-10-03
申请号：US17887531
申请日：2022-08-15
申请人： Waves Audio Ltd.
摘要： An audio system including a first microphone-equipped playback device and a second microphone-equipped playback device. The audio system is configured to synchronize playing of audio to a listener position by receiving by the first microphone-equipped playback device an audio stream, and playing the audio stream on a speaker of the first microphone-equipped playback device, in accordance with a playback delay Δt. The playback delay Δt is in accordance with a first calibration sound originating at the listening position, a second calibration sound originating at the second microphone-equipped playback device, and a third calibration sound originating at the first microphone-equipped playback device.
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公开(公告)号：US11425258B2
公开(公告)日：2022-08-23
申请号：US17092339
申请日：2020-11-09
申请人： WAVES AUDIO LTD.
IPC分类号： G06F15/173 , H04M3/56 , H04L67/1074 , G10L21/0208 , G06F15/16
摘要： First and second computer systems and respective first and second microphones thereof receive respective portions of a same audio input signal. Audio buffers received respectively from the first and second computer system include data encoded from respective microphone inputs of the first and the second computer systems. The received audio buffers are synchronized and corrected for gain differences between the received audio buffers to produce corrected audio buffers. The corrected audio buffers are mixed into an output buffer. The synchronization reduces echo when the output buffer is played at a remote peer computer system.
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公开(公告)号：US20220248146A1
公开(公告)日：2022-08-04
申请号：US17607904
申请日：2020-04-30
申请人： Waves Audio Ltd.
发明人： Gabriel Zeltzer , Meir Shaashua , Gavriel Speyer
摘要： An acoustic device including a membrane having an edge. A membrane support is attached to the edge of the membrane. A central region of the membrane is unsupported by the support. A first electrode and the membrane support are manufactured as a single element. The first electrode is disposed parallel to the membrane. The membrane is configured to respond acoustically to a varying first electric field emanating from the first electrode when a varying first voltage is applied to the first electrode. A coating is deposited on a surface of the first electrode facing the membrane.
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公开(公告)号：US11182930B2
公开(公告)日：2021-11-23
申请号：US16884477
申请日：2020-05-27
申请人： WAVES AUDIO LTD.
发明人： Matan Ben-Asher , Meir Shashoua , Gal Alchanati , Nadav Nehoran
摘要： A method and system of providing an adaptive reference orientation usable for determining a relative head orientation of a user, the method being implemented by a processing unit and comprising: repeatedly providing: receiving first data sensed by one or more sensors, said first data being indicative of a user's head orientation; obtaining a new adaptive reference orientation by moving a current adaptive reference orientation at least partly towards said indicated head orientation, by an amount which is varied at least partly in accordance with second data, said second data having been sensed by one or more sensors and being indicative of changes of a current frame of reference of the user; computing head orientation relative to said adaptive reference orientation; and using said new adaptive reference orientation as a current adaptive reference orientation for a next repeat of operations.
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公开(公告)号：US20200162817A1
公开(公告)日：2020-05-21
申请号：US16615390
申请日：2018-07-23
申请人： WAVES AUDIO LTD.
发明人： Itai NEORAN , Ahikam LAVI
摘要： A method for conveying to a listener a directionality-preserving pseudo low frequency psycho-acoustic sensation of a multichannel sound signal, including: deriving from the sound signal, by a processing unit, a high frequency multichannel signal and a low frequency multichannel signal, generating a multichannel harmonic signal, the loudness of at least one channel signal of the multichannel harmonic signal substantially matching the loudness of a corresponding channel in the low frequency multichannel signal; and at least one interaural level difference (ILD) of at least one frequency of the at least one channel pair of the multichannel harmonic signal substantially matching an ILD of a corresponding fundamental frequency in a corresponding channel pair in the low frequency multichannel signal; and summing the harmonic multichannel signal and the high frequency multichannel signal thereby giving rise to a psychoacoustic alternative signal.
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16.发明授权Apparatus and method for classification and segmentation of audio content, based on the audio signal 有权基于音频信号对音频内容进行分类和分割的装置和方法公开(公告)号：US08428949B2
公开(公告)日：2013-04-23
申请号：US12495171
申请日：2009-06-30
申请人： Itai Neoran , Yizhar Lavner , Dima Ruinskiy
发明人： Itai Neoran , Yizhar Lavner , Dima Ruinskiy
IPC分类号： G10L21/00
CPC分类号： G10L25/48
摘要： An apparatus for classifying an input audio signal into audio contents of a first and second class, comprising an audio segmentation module adapted to segment said input audio signal into segments of a predetermined length; a feature computation module adapted to calculate for the segments features characterizing said audio input signal; a threshold comparison module adapted to generate a feature vector for each of said one or more segments based on a plurality of predetermined thresholds, the thresholds including for each of the audio contents of the first class and of the second class a substantially near certainty threshold, a substantially high certainty threshold, and a substantially low certainty threshold; and a classification module adapted to analyze the feature vector and classify each one of said one or more segments as audio contents of the first class, of the second class, or as non-decisive audio contents.
摘要翻译： 一种用于将输入音频信号分类为第一和第二类的音频内容的装置，包括适于将所述输入音频信号分段成预定长度的段的音频分段模块; 特征计算模块，其适于对所述音频输入信号的表征特征的段进行计算; 阈值比较模块，其适于基于多个预定阈值来生成针对所述一个或多个段中的每一个的特征向量，所述阈值包括对于第一类和第二类的每个音频内容基本上接近的确定性阈值， 基本上高的确定性阈值和基本上低的确定性阈值; 以及分类模块，其适于分析所述特征向量并将所述一个或多个分段中的每一个分类为所述第一类，所述第二类的音频内容，或者作为非决定性音频内容。
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公开(公告)号：US07876909B2
公开(公告)日：2011-01-25
申请号：US11179510
申请日：2005-07-13
申请人： Itai Neoran , Meir Shashoua , Yoad Nevo
发明人： Itai Neoran , Meir Shashoua , Yoad Nevo
CPC分类号： H04H60/04 , G10H1/0091 , G10H2210/281 , G10H2250/061 , G10H2250/105 , G10H2250/111 , G10K15/12 , H04S7/305
摘要： A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.
摘要翻译： 用于为输入音频信号，单声道，立体声或环绕声产生人造环境效果的电路，方法和系统。 环境效果增强了人为的混响，替代人为的混响，或合成了额外的音频通道，如环绕声道。 该电路可以包括瞬态降低模块和混响滤波器。 瞬态降低模块可以适于减少一个或多个通道的输入音频信号中的瞬变。 混响滤波器可以适于接收对应于瞬态降低信号的一个或多个信道的瞬态降低信号。
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公开(公告)号：US11812239B2
公开(公告)日：2023-11-07
申请号：US17608110
申请日：2020-04-30
申请人： WAVES AUDIO LTD.
发明人： Meir Shaashua , Itai Neoran , Matan Ben-Asher
CPC分类号： H04R3/04 , H04R29/001 , H04R2430/01
摘要： A processor-based method of reducing loudspeaker-induced harmonic distortion in sound generated by a loudspeaker responsive to a first audio signal, the method including: attenuating a first band in the first audio signal by an attenuation gain, the first band including a fundamental frequency, wherein the attenuating dynamically adjusts the attenuation gain in accordance with, at least, a ratio between: i) an energy of the first band in the first audio signal; and ii) an energy of a second band in the first audio signal, the second band including one or more frequencies that is an integer multiple of the fundamental frequency.
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公开(公告)号：US20230171546A1
公开(公告)日：2023-06-01
申请号：US17925642
申请日：2021-05-11
申请人： Waves Audio Ltd.
发明人： Gabriel Zeltzer , Meir Shaashua
IPC分类号： H04R3/06 , H04R7/04 , H04R19/02 , H04R29/00 , G10K11/178
CPC分类号： H04R3/06 , H04R7/04 , H04R19/02 , H04R29/001 , G10K11/17827 , G10K11/17825 , H04R3/007
摘要： A control circuit for an electrostatic transducer including: an audio signal input, a detector configured to detect a current or charge signal from the electrostatic transducer. The detector is configured to produce an audio output signal varying at audio frequencies. A transform circuit is configured to transform the audio output signal to produce a feedback signal. A comparator is configured to compare an input audio signal at the audio signal input to the feedback signal to produce an error signal. A controller is configured to input a control signal to the electrostatic transducer, the control signal responsive to the error signal. The control signal is configured to control acoustic transparency of the electrostatic transducer, from outside space through through-holes of the first electrode, across the membrane and through through-holes of the second electrode.
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公开(公告)号：US11638093B2
公开(公告)日：2023-04-25
申请号：US17361348
申请日：2021-06-29
申请人： Waves Audio Ltd.
发明人： Barak Ben Dayan , Meir Shaashua
摘要： Controlling temperature of a surface of the electronic device. The electronic device includes: a speaker, an adaptive control circuit configured to receive an audio input signal responsive to an audio input power to the speaker and a temperature sensor configured to sense a temperature internal to the electronic device. A temperature signal responsive to the sensed temperature is input to the adaptive control circuit. Responsive to the audio input signal and the temperature signal a power control signal is computed by the adaptive control circuit so that a temperature of the surface of the electronic device at a later time approaches a previously determined target temperature. An audio limiter is configured to limit the audio input power to the speaker responsive to the power control signal.
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