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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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公开(公告)号：US20220358948A1
公开(公告)日：2022-11-10
申请号：US17734131
申请日：2022-05-02
申请人： Waves Audio Ltd.
IPC分类号： G10L21/0364 , G10L25/78 , G10L21/0224 , G10L21/034 , G10L21/0232
摘要： An audio input configured to input an audio stream and a noise reduction module configured for processing the audio stream for emphasizing speech content. A monophonic detector is configured to determine whether the audio stream is either monophonic or not monophonic. A decision module is configured to receive an input from the monophonic detector and to output a decision to bypass the noise-reduction when the audio stream is not monophonic.
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公开(公告)号：US11477596B2
公开(公告)日：2022-10-18
申请号：US17063794
申请日：2020-10-06
申请人： WAVES AUDIO LTD.
摘要： A computerized microphone-equipped audio playback device comprising a speaker and microphone and being configured to receive digital audio; and play the digital audio on a speaker, in accordance with a playback delay that is derivative of, at least: an arrival time of a first calibration sound at the processor and an arrival time of the first calibration sound at a second microphone-equipped audio playback device, wherein the first calibration sound originated at the listener position; a generation time of a second calibration sound at the second microphone-equipped audio playback device, and an arrival time of the second calibration sound at the processor; and a generation time of a third calibration sound at the processor, and an arrival time of the third calibration sound at the second microphone-equipped audio playback device; thereby synchronizing arrival of sound of the two playback devices at the listener position.
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公开(公告)号：US20220312105A1
公开(公告)日：2022-09-29
申请号：US17838220
申请日：2022-06-12
申请人： Waves Audio Ltd.
发明人： Gabriel Zeltzer , Meir Shaashua
摘要： An electrostatic transducer including a membrane, a first electrode and a second electrode. The first electrode is disposed parallel to the membrane. The membrane is configured to respond mechanically to a varying first electric field in accordance with respective electric potentials applied between the first electrode and the membrane. The second electrode is disposed parallel to the membrane opposite from the first electrode. The membrane is configured to respond mechanically to a varying second electric field in accordance with respective electric potentials between the second electrode and the membrane. The first and second electrodes have through holes configured for acoustic transmission to and from the membrane. The housing includes: (i) a nozzle configured for acoustic transmission from the membrane through the holes of the first electrode to an ear canal and (ii) an aperture configured to provide acoustic transmission through the holes of the second electrode between the membrane and air external to the housing.
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公开(公告)号：US20210397409A1
公开(公告)日：2021-12-23
申请号：US17352303
申请日：2021-06-20
申请人： Waves Audio Ltd.
发明人： Inon Beiser , Meir Shaashua , Itai Neoran , Shai Mantzur
IPC分类号： G06F3/16 , G06F3/0484
摘要： Adjusting gains of an audio mix. Audio tracks using respective gains are individually analyzed to compute a first metric of frequency content. A user input specifies a desired second metric of the frequency content. Responsive to the user input, respective gains of the audio tracks are collectively and simultaneously adjusted to produce respective adjusted gains of the audio tracks. A second audio mix when played of the audio tracks with the respective adjusted gains has a third metric of frequency content different from the first metric of frequency content. The third metric is closer to the second metric than said first metric.
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公开(公告)号：US10705338B2
公开(公告)日：2020-07-07
申请号：US16096986
申请日：2017-05-01
申请人： WAVES AUDIO LTD.
发明人： Matan Ben-Asher , Meir Shashoua , Gal Alchanati , Nadav Nehoran
摘要： A method and system for providing head orientation relative to an adaptive reference orientation, implemented by a processing unit and comprising receiving head data from a head sensor, said head data describing a first head orientation of a user; receiving second data from a second sensor; adapting said adaptive reference orientation by moving it at least partly towards said first head orientation by an amount which is varied at least partly in accordance with said second data, thereby generating a new adaptive reference orientation; and generating, in accordance with said first head orientation and said new adaptive reference orientation, a second head orientation of the user as said first head orientation relative to said new adaptive reference orientation.
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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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