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公开(公告)号：US20250126425A1
公开(公告)日：2025-04-17
申请号：US18986468
申请日：2024-12-18
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：US20230245642A1
公开(公告)日：2023-08-03
申请号：US18296901
申请日：2023-04-06
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc Jot , Samuel Charles Dicker
IPC: G10K15/08
CPC classification number: 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：US20190387350A1
公开(公告)日：2019-12-19
申请号：US16445163
申请日：2019-06-18
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER , Brian Lloyd SCHMIDT
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：US20240282289A1
公开(公告)日：2024-08-22
申请号：US18653795
申请日：2024-05-02
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER
IPC: G10K15/08
CPC classification number: 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：US20240155305A1
公开(公告)日：2024-05-09
申请号：US18412167
申请日：2024-01-12
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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Patent Agency Ranking
公开(公告)号：US20230396947A1
公开(公告)日：2023-12-07
申请号：US18451794
申请日：2023-08-17
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER , Mark Brandon HERTENSTEINER , Justin Dan MATHEW , Anastasia Andreyevna TAJIK , Nicholas John LaMARTINA
CPC classification number: H04S7/304 , H04R5/033 , H04R5/04 , H04S3/008 , H04S2400/11 , H04S2400/01 , H04S2420/01
Abstract: Examples of the disclosure describe systems and methods for presenting an audio signal to a user of a wearable head device. According to an example method, a source location corresponding to the audio signal is identified. For each of the respective left and right ear of the user, a virtual speaker position, of a virtual speaker array, is determined, the virtual speaker position collinear with the source location and with a position of the respective ear. For each of the respective left and right ear of the user, a head-related transfer function (HRTF) corresponding to the virtual speaker position and to the respective ear is determined; and the output audio signal is presented to the respective ear of the user via one or more speakers associated with the wearable head device. Processing the audio signal includes applying the HRTF to the audio signal.
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公开(公告)号：US20230094733A1
公开(公告)日：2023-03-30
申请号：US18061367
申请日：2022-12-02
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Charles DICKER , Mark Brandon HERTENSTEINER , Justin Dan MATHEW , Anastasia Andreyevna TAJIK , Nicholas John LaMARTINA
Abstract: Examples of the disclosure describe systems and methods for presenting an audio signal to a user of a wearable head device. According to an example method, a source location corresponding to the audio signal is identified. For each of the respective left and right ear of the user, a virtual speaker position, of a virtual speaker array, is determined, the virtual speaker position collinear with the source location and with a position of the respective ear. For each of the respective left and right ear of the user, a head-related transfer function (HRTF) corresponding to the virtual speaker position and to the respective ear is determined; and the output audio signal is presented to the respective ear of the user via one or more speakers associated with the wearable head device. Processing the audio signal includes applying the HRTF to the audio signal.
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公开(公告)号：US20210058728A1
公开(公告)日：2021-02-25
申请号：US16987079
申请日：2020-08-06
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , Samuel Chrles 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：US20240414492A1
公开(公告)日：2024-12-12
申请号：US18703302
申请日：2022-10-18
Applicant: Magic Leap, Inc.
Inventor： Mark Brandon HERTENSTEINER , Justin Dan MATHEW , Remi Samuel AUDFRAY , Jean-Marc JOT , Benjamin Thomas VONDERSAAR , Michael Z. LAND
IPC: H04S7/00 , G06F3/16 , G06T19/00 , G10L21/0208
Abstract: This disclosure relates in general to augmented reality (AR), mixed reality (MR), or extended reality (XR) environmental mapping. Specifically, this disclosure relates to AR, MR, or XR audio mapping in an AR, MR, or XR environment. In some embodiments, the disclosed systems and methods allow the environment to be mapped based on a recording. In some embodiments, the audio mapping information is associated to voxels located in the environment.
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公开(公告)号：US20240406666A1
公开(公告)日：2024-12-05
申请号：US18697914
申请日：2022-10-03
Applicant: Magic Leap, Inc.
Inventor： Remi Samuel AUDFRAY , Jean-Marc JOT , David Thomas ROACH
IPC: H04S7/00
Abstract: Disclosed herein are systems and methods for capturing a sound field, in particular, using a mixed reality device. In some embodiments, a method comprises: detecting, with a microphone of a first wearable-head device, a sound of an environment; determining a digital audio signal based on the detected sound, the digital audio signal associated with a sphere having a position in the environment; concurrently with detecting the sound, a microphone movement with respect to the environment; adjusting the digital audio signal, wherein the adjusting comprises adjusting the position of the sphere based on based on the detected microphone movement.
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