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公开(公告)号：US20200244242A1
公开(公告)日：2020-07-30
申请号：US16847799
申请日：2020-04-14
申请人： Anthony Bongiovi , Glenn Zelniker , Phillip Fuller , Ryan Copt
发明人： Anthony Bongiovi , Glenn Zelniker , Phillip Fuller , Ryan Copt
摘要： The present invention provides for methods and systems for digitally processing an audio signal to reproduce high quality sounds on various materials. In various embodiments, a method comprises filtering the signal with a low shelf filter and/or high shelf filter, passing the signal through a first compressor that, filtering the signal again with a low shelf filter and/or high shelf filter, processing the signal with a graphic equalizer based on a selected material profile, passing the signal through a second compressor, and outputting the signal to a transducer.
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公开(公告)号：US10666217B2
公开(公告)日：2020-05-26
申请号：US16264121
申请日：2019-01-31
申请人： GOOGLE LLC
发明人： Gabriel Slotnick
摘要： A method for dynamic equalization is performed at a system. The system receives an electronic audio signal. The system monitors available headroom based on two or more of: an amplifier of the system, a change in volume of the system, characteristics of a transducer of a loudspeaker associated with the system, and the audio signal. Responsive to a change in the available headroom, the system modifies one or more parameters of an equalizer to at least a portion of the signal in order to extend a physical low-frequency response of the loudspeaker, the one or more parameters comprising a gain for the and a frequency.
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公开(公告)号：US20200162050A1
公开(公告)日：2020-05-21
申请号：US16453985
申请日：2019-06-26
发明人： Darcy Antonellis , Lewis Ostrover
摘要： A method or apparatus for delivering audio programming such as music to listeners may include identifying, capturing and applying a listener's audiometric profile to transform audio content so that the listener hears the content similarly to how the content was originally heard by a creative producer of the content. An audio testing tool may be implemented as software application to identify and capture the listener's audiometric profile. A signal processor may operate an algorithm used for processing source audio content, obtaining an identity and an audiometric reference profile of the creative producer from metadata associated with the content. The signal processor may then provide audio output based on a difference between the listener's and creative producer's audiometric profiles.
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公开(公告)号：US20200113493A1
公开(公告)日：2020-04-16
申请号：US16559360
申请日：2019-09-03
发明人： Nicholas R. CLARK
摘要： A method of enhancing an audio signal from an audio output device is provided. For a frequency band, a user masking contour curve covering at least a part of said frequency band is obtained, a target masking contour curve is derived from the user masking contour curve, and a multi-band digital compression system is parameterized based on the sound level of the target masking contour curve at a given frequency and the sound level of the user masking contour curve at the same given frequency. The obtained parameters are outputted to provide an enhanced audio signal.
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公开(公告)号：US10523169B2
公开(公告)日：2019-12-31
申请号：US16365947
申请日：2019-03-27
IPC分类号： H04R29/00 , H03G5/00 , H03G3/30 , H03G7/00 , H03G9/00 , H03G1/00 , H04R3/04 , G10L21/038 , G10L25/21
摘要： In some embodiments, a method for processing an audio signal in an audio processing apparatus is disclosed. The method includes receiving an audio signal and a parameter, the parameter indicating a location of an auditory event boundary. An audio portion between consecutive auditory event boundaries constitutes an auditory event. The method further includes applying a modification to the audio signal based in part on an occurrence of the auditory event. The parameter may be generated by monitoring a characteristic of the audio signal and identifying a change in the characteristic.
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公开(公告)号：US20190373384A1
公开(公告)日：2019-12-05
申请号：US16542433
申请日：2019-08-16
申请人： Sonos, Inc.
发明人： Timothy Sheen , Aurelio Ramos
IPC分类号： H04R29/00 , H03G3/20 , H03G5/00 , H03G5/16 , H04R1/22 , H04R3/04 , H04R3/12 , H04R5/04 , H04R27/00 , H04S1/00 , H04S7/00 , G06F3/16
摘要： Examples involve calibration of a playback device including multiple audio transducers. An example implementation involves forming a particular playback configuration that configures the multiple audio transducers to form two or more channels and receiving a command to initiate calibration of the particular playback configuration. The calibration includes emitting a calibration sound according to a sequence that involves the calibration sound cycling through frequencies of a calibration frequency range. Based on the command, the playback device emits the calibration sound contemporaneously via the two or more channels. Emission of the calibration sound by each channel is staggered such that each emitted calibration sound is delayed relative to a preceding emitted calibration sound. The playback device receives audio processing coefficients that are based on one or more recordings of the emitted calibration sound; and applies the audio processing coefficients when playing back the audio content as part of the particular playback configuration.
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公开(公告)号：US20190261106A1
公开(公告)日：2019-08-22
申请号：US16403077
申请日：2019-05-03
申请人： Sonos, Inc.
发明人： Dayn Wilberding , Neil Griffiths
IPC分类号： H04R29/00 , H03G5/16 , H04R1/22 , H04S7/00 , H03G3/20 , G06F3/16 , H03G5/00 , H04S1/00 , H04R5/04 , H04R3/04 , H04R27/00 , H04R3/12
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：US10334363B2
公开(公告)日：2019-06-25
申请号：US15478744
申请日：2017-04-04
申请人： ROHM CO., LTD.
发明人： Kinji Ito
摘要： An audio signal processing circuit is disclosed. The audio signal processing circuit includes a digital signal processing part formed in a digital area, and configured to process a digital audio signal; an analog circuit formed in an analog area, and configured to process an analog audio signal; a frequency divider formed in the digital area, and configured to divide a system clock signal to generate a first clock signal to be provided to the digital signal processing part and a second clock signal to be provided to the analog area; and a retiming circuit formed in the analog area, and configured to retime the second clock signal by using the system clock signal and provide the retimed second clock signal to the analog circuit.
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公开(公告)号：US10327086B2
公开(公告)日：2019-06-18
申请号：US15965713
申请日：2018-04-27
申请人： POLK AUDIO, LLC
发明人： Scott Orth , Stuart W. Lumsden
摘要： An enhanced Stereo Dimensional Array loudspeaker system 250 preferably including a mirror image pair of loudspeaker enclosures 280L, 280R configurable by a user or installer as a left-channel loudspeaker and a right channel loudspeaker each having a driver array aiming configuration with first and second angled baffle facets carrying main and effects drivers on separate facets and a Head Shadow filter signal processing system and method for driving the main and effects drivers to achieve a psycho-acoustically expanded image breadth by Head Shadow filter compensated inter-aural crosstalk cancellation.
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公开(公告)号：US10313791B2
公开(公告)日：2019-06-04
申请号：US15906614
申请日：2018-02-27
发明人： Anthony Bongiovi , Philip Fuller , Glenn Zelniker
IPC分类号： H03G5/00 , H04R3/04 , H03G3/00 , G06F3/16 , H03G5/16 , H03G7/00 , H03G9/00 , H03G9/02 , H04S7/00 , G10L21/034 , H03G9/14 , G06F16/60 , H03G5/02
摘要： A system and method for digital processing including a gain element to process an input audio signal, a high pass filter to then filter the signal and create a high pass signal, a first filter module to filter the high pass signal and create a first filtered signal and a splitter to split the high pass signal into two high pass signals. The first filter module filters one high pass signals before a first compressor modulates the signal or a high pass signal to create a modulated signal. A second filter module filters the modulated signal to create a second filtered signal that is processed by a first processing module including a band splitter that splits the signal into low and high band signals that are then modulated by compressors. A second processing module processes the modulated low and high band signals to create an output signal.
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