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公开(公告)号：US20220038840A1
公开(公告)日：2022-02-03
申请号：US17401090
申请日：2021-08-12
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. An acoustic axis corresponding to the audio signal is determined. For each of a respective left and right ear of the user, an angle between the acoustic axis and the respective ear is determined. 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. The virtual speaker array includes a plurality of virtual speaker positions, each virtual speaker position of the plurality located on the surface of a sphere concentric with the user's head, the sphere having a first radius. 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; a source radiation filter is determined based on the determined angle; the audio signal is processed to generate an output audio signal for the respective ear; 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 and the source radiation filter to the audio signal.
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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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