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1.发明公开公开(公告)号：US20240347067A1
公开(公告)日：2024-10-17
申请号：US18650215
申请日：2024-04-30
发明人： Florin Ghido , Sascha Disch , Jürgen Herre , Alexander Adami , Franz Reutelhuber
IPC分类号： G10L19/032 , G10L19/008 , G10L19/26 , H03G5/00 , H03G5/16
CPC分类号： G10L19/032 , G10L19/008 , G10L19/26 , H03G5/005 , H03G5/165
摘要： An audio post-processor for post-processing an audio signal having a time-variable high frequency gain information as side information includes: a band extractor for extracting a high frequency band of the audio signal and a low frequency band of the audio signal; a high band processor for performing a time-variable modification of the high frequency band in accordance with the time-variable high frequency gain information to obtain a processed high frequency band; and a combiner for combining the processed high frequency band and the low frequency band. Furthermore, a pre-processor is illustrated.
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公开(公告)号：US12108208B2
公开(公告)日：2024-10-01
申请号：US17932288
申请日：2022-09-14
发明人： Liwei Wang , Lei Zhang , Fengyun Liao , Xin Qi
IPC分类号： H03G5/00 , H04R1/02 , H04R1/10 , H04R1/22 , H04R1/24 , H04R1/28 , H04R1/34 , H04R1/40 , H04R7/04 , H04R7/18 , H04R9/02 , H04R9/06
CPC分类号： H04R1/40 , H04R1/023 , H04R1/1008 , H04R1/1075 , H04R1/1091 , H04R1/227 , H04R1/24 , H04R1/2846 , H04R1/2884 , H04R1/345 , H04R7/04 , H04R7/18 , H04R9/025 , H04R9/06
摘要： This present disclosure discloses an acoustic output device comprising: an acoustic driver that includes a diaphragm and a magnetic circuit structure, wherein a side of the diaphragm facing away from the magnetic circuit structure forms a front side of the acoustic driver, a side of the magnetic circuit structure facing away from the diaphragm forms a back side of the acoustic driver, the diaphragm vibrates so that the acoustic driver radiates sound outward from its front and back, respectively; a housing structure configured to carry the acoustic driver, wherein the back side of the acoustic driver and the housing structure form a back cavity, and different side walls of the back cavity are connected by a curved structure; the housing structure includes at least one sound outlet hole, the at least one sound outlet hole is acoustically coupled with the back cavity.
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公开(公告)号：US20240179484A1
公开(公告)日：2024-05-30
申请号：US18432265
申请日：2024-02-05
申请人： Sonos, Inc.
发明人： Dayn Wilberding , Neil Griffiths
IPC分类号： H04R29/00 , G06F3/16 , H03G3/20 , H03G5/00 , H03G5/16 , H04R1/22 , H04R3/04 , H04R3/12 , H04R5/04 , H04R27/00 , H04S1/00 , H04S7/00
CPC分类号： H04R29/001 , G06F3/165 , H03G3/20 , H03G5/005 , H03G5/16 , H03G5/165 , H04R1/22 , H04R3/04 , H04R3/12 , H04R5/04 , H04R27/00 , H04R29/008 , H04S1/007 , H04S7/301 , H04R2227/005
摘要： Example techniques involve a calibration state variable. An example implementation receives, via a network interface, an indication that the first playback device is calibrated. Based on receiving the indication that the first playback device is calibrated, the example implementation updates a calibration state variable to indicate that the first playback device is calibrated, wherein the calibration state variable is stored in the data storage. The example implementation sends, via the network interface, an indication of the updated calibration state variable to a second device.
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公开(公告)号：US11974105B2
公开(公告)日：2024-04-30
申请号：US17654346
申请日：2022-03-10
申请人： SIGMASENSE, LLC.
CPC分类号： H04R3/04 , H03M1/001 , H04R1/2803
摘要： A noise canceling audio in/out device includes an audible in/out transducer operable to convert an audible noise signal to a noise signal and convert an audio transmit (TX) signal to an audible output signal. A transducer signal of the audible in/out transducer generated by the audio TX signal is affected by the noise signal. The noise canceling audio in/out device further includes a noise canceling circuit operable to convert a digital TX signal to a TX reference signal, compare the transducer signal with the TX reference signal to produce an analog comparison signal, where the analog comparison signal includes a representation of the audio TX signal and the noise signal, and regulate the transducer signal to substantially match the TX reference signal to remove the effect of the noise signal on the transducer signal.
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公开(公告)号：US20240134595A1
公开(公告)日：2024-04-25
申请号：US18463827
申请日：2023-09-07
申请人： Sonos, Inc.
发明人： Timothy W. Sheen
CPC分类号： G06F3/165 , H03G5/005 , H03G5/165 , H04R3/04 , H04R29/001 , H04R29/007 , H04S7/301 , H04S7/303 , H04S7/307 , H04R2227/001 , H04R2227/005 , H04S2420/07
摘要： Example techniques facilitate calibration of a playback device. An example implementation involves a computing device capturing, via a microphone, data representing multiple iterations of a calibration sound as played by a playback device. The computing device identifies multiple sections within the captured data. Two or more sections represent respective iterations of the calibration sound as played by the playback device. Based on the multiple identified sections, the computing device determines a frequency response of the playback device, the frequency response of the playback device representing audio output by the playback device and acoustic characteristics of an environment around the playback device. Based on the frequency response of the playback device and a target frequency response, the computing device determines one or more parameters of an audio processing algorithm and sends, to the playback device, the one or more parameters of the audio processing algorithm.
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公开(公告)号：US11917361B2
公开(公告)日：2024-02-27
申请号：US17400528
申请日：2021-08-12
申请人： Michael Levy
发明人： Michael Levy
CPC分类号： H04R1/2803 , H04R3/04
摘要： A method and system of improving frequency responses at lower frequencies from a loudspeaker includes simultaneously tuning a transmission line and a tuned port in the same system. The transmission line and the tuned ports are tuned to innate characteristics of the physical and electrical components within the loudspeaker. In one embodiment, an improved frequency response of a loudspeaker is achieved by tuning the transmission line to the frequency of the maximum excursion point of the loudspeakers. In another embodiment the transmission line is tuned to the resonance frequency of the loudspeaker having the tuned port.
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公开(公告)号：US11847998B2
公开(公告)日：2023-12-19
申请号：US18052481
申请日：2022-11-03
申请人： Gracenote, Inc.
发明人： Zafar Rafii
IPC分类号： H03G5/00 , H04R1/32 , G10K11/175 , G06F3/16 , G10L25/18
CPC分类号： G10K11/175 , G06F3/162 , G10L25/18
摘要： Methods and apparatus for harmonic source enhancement are disclosed herein. An example apparatus includes an interface to receive a media signal. The example apparatus also includes a harmonic source enhancer to determine a magnitude spectrogram of audio corresponding to the media signal; generate a time-frequency mask based on the magnitude spectrogram; and apply the time-frequency mask to the magnitude spectrogram to enhance a harmonic source of the media signal.
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公开(公告)号：US11757420B2
公开(公告)日：2023-09-12
申请号：US17324135
申请日：2021-05-19
发明人： Jung-Kuei Chang
摘要： A leveling equalizer includes a graphic equalizer circuit, a first multiplication circuit, a second multiplication circuit, an addition circuit, and a gain control circuit. The graphic equalizer circuit processes a first input signal and output a first output signal and a second output signal. The first multiplication circuit multiplies the first output signal and one of an adjustable gain value and a fixed gain value to generate a first adjusted output signal. The second multiplication circuit multiplies the second output signal and another of the adjustable gain value and the fixed gain value to generate a second adjusted output signal. The addition circuit combines the first adjusted output signal and the second adjusted output signal to generate an equalizer output signal. The gain control circuit dynamically adjusts the adjustable gain value according to the equalizer output signal.
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公开(公告)号：US11736671B2
公开(公告)日：2023-08-22
申请号：US16890066
申请日：2020-06-02
申请人： Mikhail Dichenko , Irina Tulaeva
发明人： Mikhail Dichenko
摘要： A method for changing an image file based on a toning coefficient includes receiving an image file including an image having a plurality of pixels. Toning characteristic function is determined for each pixel of the received image. Distribution of the plurality of pixels of the received image is analyzed using the toning characteristic function. The toning coefficient of the received image is determined based on the analyzed distribution of the plurality of pixels. A degree of toning of the received image file is changed using a user specified criteria based on the determined toning coefficient.
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公开(公告)号：US11516608B2
公开(公告)日：2022-11-29
申请号：US17373179
申请日：2021-07-12
申请人： Sonos, Inc.
发明人： Dayn Wilberding , Neil Griffiths
IPC分类号： H04R29/00 , H04S7/00 , H03G5/16 , H03G5/00 , H04R3/12 , H04R27/00 , G06F3/16 , H04R3/04 , H04R5/04 , H04S1/00 , H03G3/20 , H04R1/22
摘要： Example techniques involve a calibration state variable. An example implementation receives, via a network interface, an indication that the first playback device is calibrated. Based on receiving the indication that the first playback device is calibrated, the example implementation updates a calibration state variable to indicate that the first playback device is calibrated, wherein the calibration state variable is stored in the data storage. The example implementation sends, via the network interface, an indication of the updated calibration state variable to a second device.
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