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公开(公告)号：US20200186951A1
公开(公告)日：2020-06-11
申请号：US16789201
申请日：2020-02-12
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
Abstract: Systems and methods for rendering audio signals are disclosed. In some embodiments, a method may receive an input signal including a first portion and the second portion. A first processing stage comprising a first filter is applied to the first portion to generate a first filtered signal. A second processing stage comprising a second filter is applied to the first portion to generate a second filtered signal. A third processing stage comprising a third filter is applied to the second portion to generate a third filtered signal. A fourth processing stage comprising a fourth filter is applied to the second portion to generate a fourth filtered signal. A first output signal is determined based on a sum of the first filtered signal and the third filtered signal. A second output signal is determined based on a sum of the second filtered signal and the fourth filtered signal. The first output signal is presented to a first ear of a user of a virtual environment, and the second output signal is presented to the second ear of the user. The first portion of the input signal corresponds to a first location in the virtual environment, and the second portion of the input signal corresponds to a second location in the virtual environment.
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公开(公告)号：US20190387340A1
公开(公告)日：2019-12-19
申请号：US16442258
申请日：2019-06-14
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
Abstract: Systems and methods for rendering audio signals are disclosed. In some embodiments, a method may receive an input signal including a first portion and the second portion. A first processing stage comprising a first filter is applied to the first portion to generate a first filtered signal. A second processing stage comprising a second filter is applied to the first portion to generate a second filtered signal. A third processing stage comprising a third filter is applied to the second portion to generate a third filtered signal. A fourth processing stage comprising a fourth filter is applied to the second portion to generate a fourth filtered signal. A first output signal is determined based on a sum of the first filtered signal and the third filtered signal. A second output signal is determined based on a sum of the second filtered signal and the fourth filtered signal. The first output signal is presented to a first ear of a user of a virtual environment, and the second output signal is presented to the second ear of the user. The first portion of the input signal corresponds to a first location in the virtual environment, and the second portion of the input signal corresponds to a second location in the virtual environment.
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公开(公告)号：US20250071477A1
公开(公告)日：2025-02-27
申请号：US18703308
申请日：2022-10-26
Applicant: MAGIC LEAP, INC.
Inventor： Jean-Marc JOT , Remi Samuel AUDFRAY , Richard D. HERR , Mark BLANCHARD
Abstract: Embodiments of the present disclosure are directed to an acoustic waveguide for presenting an audio signal. An apparatus in accordance with embodiments of this disclosure can include a waveguide member comprising a hollow body having a first end and a second end. The apparatus can further include a sound source disposed at the first end of the waveguide configured to emit at least a first sound wave. The apparatus can further include a plurality of acoustic vents disposed on a lower surface of the body of the waveguide, wherein each of the plurality of acoustic vents is configured to receive the first sound wave and further configured to emit a respective sound wave based on the first sound wave, wherein each respective sound wave corresponds to a respective point sound source.
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公开(公告)号：US20230388736A1
公开(公告)日：2023-11-30
申请号：US18449624
申请日：2023-08-14
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
CPC classification number: H04S7/304 , H04R5/033 , H04R5/04 , H04S3/008 , G10K15/10 , H04R3/04 , G02B27/017 , H04R3/12 , H04S7/305 , H04S2400/13 , H04S2400/01 , H04S2400/15 , H04R2499/15 , G02B2027/0178 , H04S2420/11
Abstract: Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. A first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the sound source in the virtual environment, and the first intermediate audio signal is associated with a first bus. A second intermediate audio signal is determined. The second intermediate audio signal corresponds to a reverberation of the input audio signal in the virtual environment. The second intermediate audio signal is determined based on a location of the sound source, and further based on an acoustic property of the virtual environment. The second intermediate audio signal is associated with a second bus. The output audio signal is presented to the listener via the first and second buses.
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公开(公告)号：US20230121353A1
公开(公告)日：2023-04-20
申请号：US18069702
申请日：2022-12-21
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
Abstract: Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. A first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the sound source in the virtual environment, and the first intermediate audio signal is associated with a first bus. A second intermediate audio signal is determined. The second intermediate audio signal corresponds to a reverberation of the input audio signal in the virtual environment. The second intermediate audio signal is determined based on a location of the sound source, and further based on an acoustic property of the virtual environment. The second intermediate audio signal is associated with a second bus. The output audio signal is presented to the listener via the first and second buses.
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Patent Agency Ranking
公开(公告)号：US20220130370A1
公开(公告)日：2022-04-28
申请号：US17568588
申请日：2022-01-04
Applicant: Magic Leap, Inc
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
IPC: G10K15/08
Abstract: 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：US20210258715A1
公开(公告)日：2021-08-19
申请号：US17174287
申请日：2021-02-11
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Mark Brandon HERTENSTEINER , Samuel Charles DICKER , Blaine Ivin WOOD , Michael Z. LAND
IPC: H04S7/00
Abstract: Disclosed herein are systems and methods for efficiently rendering audio. A method may include receiving a request to present a first audio track, wherein the first audio track is based on a first audio model comprising a shared model component and a first model component; receiving a request to present a second audio track, wherein the second audio track is based on a second audio model comprising the shared model component and a second model component; rendering a sound based on the first audio track, the second audio track, the shared model component, the first model component, and the second model component; and presenting, via one or more speakers, the an audio signal comprising the rendered sound.
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公开(公告)号：US20210243546A1
公开(公告)日：2021-08-05
申请号：US17175374
申请日：2021-02-12
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc Jot , Samuel Charles Dicker
Abstract: Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. For each sound source of a plurality of sound sources in the virtual environment, a respective first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the respective sound source in the virtual environment, and the respective first intermediate audio signal is associated with a first bus. For each of the sound sources of the plurality of sound sources in the virtual environment, a respective second intermediate audio signal is determined. The respective second intermediate audio signal corresponds to a reverberation of the input audio signal in the virtual environment. The respective second intermediate audio signal is determined based on a location of the respective sound source, and further based on an acoustic property of the virtual environment. The respective second intermediate audio signal is associated with a second bus. The output audio signal is presented to the listener via the first bus and the second bus.
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公开(公告)号：US20210160650A1
公开(公告)日：2021-05-27
申请号：US17064476
申请日：2020-10-06
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT
Abstract: A system and method for providing low interaural coherence at low frequencies is disclosed. In some embodiments, the system may include a reverberator and a low-frequency interaural coherence control system. The reverberator may include two sets of comb filters, one for the left ear output signal and one for the right ear output signal. The low-frequency interaural coherence control system can include a plurality of sections, each section can be configured to control a certain frequency range of the signals that propagate through the given section. The sections may include a left high-frequency section for the left ear output signal and a right high-frequency section for the right ear output signal. The sections may also include a shared low-frequency section that can output signals to be combined by combiners of the left and right high-frequency sections.
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公开(公告)号：US20190387352A1
公开(公告)日：2019-12-19
申请号：US16445171
申请日：2019-06-18
Applicant: Magic Leap, Inc.
Inventor： Jean-Marc JOT , Samuel Charles DICKER , Brian Lloyd SCHMIDT , Remi Samuel AUDFRAY
Abstract: Systems and methods of presenting an output audio signal to a listener located at a first location in a virtual environment are disclosed. According to embodiments of a method, an input audio signal is received. For each sound source of a plurality of sound sources in the virtual environment, a respective first intermediate audio signal corresponding to the input audio signal is determined, based on a location of the respective sound source in the virtual environment, and the respective first intermediate audio signal is associated with a first bus. For each of the sound sources of the plurality of sound sources in the virtual environment, a respective second intermediate audio signal is determined. The respective second intermediate audio signal corresponds to a reflection of the input audio signal in a surface of the virtual environment. The respective second intermediate audio signal is determined based on a location of the respective sound source, and further based on an acoustic property of the virtual environment. The respective second intermediate audio signal is associated with a second bus. The output audio signal is presented to the listener via the first bus and the second bus.
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