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公开(公告)号：US11265670B2
公开(公告)日：2022-03-01
申请号：US16865185
申请日：2020-05-01
申请人： Apple Inc.
摘要： A binaural sound reproduction system, and methods of using the binaural sound reproduction system to dynamically re-center a frame of reference for a virtual sound source, are described. The binaural sound reproduction system may include a reference device, e.g., a mobile device, having a reference sensor to provide reference orientation data corresponding to a direction of the reference device, and a head-mounted device, e.g., headphones, having a device sensor to provide device orientation data corresponding to a direction of the head-mounted device. The system may use the reference orientation data to determine whether the head-mounted device is being used in a static or dynamic use case, and may adjust an audio output to render the virtual sound source in an adjusted source direction based on the determined use case. Other embodiments are also described and claimed.
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公开(公告)号：US10674308B2
公开(公告)日：2020-06-02
申请号：US16396277
申请日：2019-04-26
申请人： Apple Inc.
摘要： A binaural sound reproduction system, and methods of using the binaural sound reproduction system to dynamically re-center a frame of reference for a virtual sound source, are described. The binaural sound reproduction system may include a reference device, e.g., a mobile device, having a reference sensor to provide reference orientation data corresponding to a direction of the reference device, and a head-mounted device, e.g., headphones, having a device sensor to provide device orientation data corresponding to a direction of the head-mounted device. The system may use the reference orientation data to determine whether the head-mounted device is being used in a static or dynamic use case, and may adjust an audio output to render the virtual sound source in an adjusted source direction based on the determined use case. Other embodiments are also described and claimed.
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公开(公告)号：US20190191257A1
公开(公告)日：2019-06-20
申请号：US15846052
申请日：2017-12-18
申请人： Apple Inc.
CPC分类号： H04S1/007 , H04S5/00 , H04S7/306 , H04S2400/03
摘要： A transition between a stereophonic presentation and a monophonic presentation of a stereophonic input signal that includes a left channel signal and a right channel signal extracts content that is present at similar levels but not in-phase between the left and right channel signals to produce at least one of a left enhancement signal and a right enhancement signal. The left channel signal, the right channel signal, and only one of the left and right enhancement signals are combined to produce a monophonic signal for the monophonic presentation. Cross-fading between the left channel signal and the monophonic signal and between the right channel signal and the monophonic signal may be used to transition between the stereophonic presentation and the monophonic presentation. The stereophonic input signal may be up-mixed to produce enhancement signal. A similar transition between a multichannel presentation and a monophonic presentation of a multichannel signal is described.
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公开(公告)号：US10244314B2
公开(公告)日：2019-03-26
申请号：US15636967
申请日：2017-06-29
申请人： Apple Inc.
摘要： An audio system includes one or more loudspeaker cabinets, each having loudspeakers. The system outputs an omnidirectional sound pattern to determine the acoustic environment. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A playback mode processor adjusts an audio program according to a playback mode determined from the acoustic environment of the audio system. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US20180367917A1
公开(公告)日：2018-12-20
申请号：US15622617
申请日：2017-06-14
申请人： Apple Inc.
CPC分类号： H04R9/06 , H03G3/3005 , H04R3/00 , H04R9/025 , H04R9/046 , H04R29/001 , H04R2201/028
摘要： A coil assembly is coupled to a diaphragm. The coil assembly has a number of coils that are fixed in a stacked, end to end manner along a length axis. The coils include a middle coil, a several upper coils and several lower coils. Each coil has a respective pair of coil terminals so that it can be independently driven by an audio signal. The coil assembly as a whole is overhung, while each of constituent coils is underhung so that there are at least two adjacent coils that are completely within the magnetic gap, and at least two other coils that are completely outside the magnetic gap, during a majority of the full excursion of the coil assembly. Other embodiments are also described and claimed.
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公开(公告)号：US20180352331A1
公开(公告)日：2018-12-06
申请号：US15613049
申请日：2017-06-02
申请人： Apple Inc.
IPC分类号： H04R3/04 , G10L21/0208 , H04R3/12 , H04R1/40 , H04R29/00
CPC分类号： H04R3/04 , G10L21/0208 , G10L2021/02082 , H04R1/403 , H04R3/12 , H04R27/00 , H04R29/002 , H04R29/007 , H04R2227/005 , H04S7/305 , H04S7/307
摘要： An audio system includes one or more loudspeaker cabinets, each having loudspeakers. Sensing logic determines an acoustic environment of the loudspeaker cabinets. The sensing logic may include an echo canceller. A low frequency filter corrects an audio program based on the acoustic environment of the loudspeaker cabinets. The system outputs an omnidirectional sound pattern, which may be low frequency sound, to determine the acoustic environment. The system may produce a directional pattern superimposed on an omnidirectional pattern, if the acoustic environment is in free space. The system may aim ambient content toward a wall and direct content away from the wall, if the acoustic environment is not in free space. The sensing logic automatically determines the acoustic environment upon initial power up and when position changes of loudspeaker cabinets are detected. Accelerometers may detect position changes of the loudspeaker cabinets.
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公开(公告)号：US09942686B1
公开(公告)日：2018-04-10
申请号：US15621732
申请日：2017-06-13
申请人： Apple Inc.
摘要： A process for reproducing sound using a loudspeaker array that is housed in a loudspeaker cabinet includes the selection of a number of sound rendering modes and changing the selected sound rendering mode based on changes in one or both of sensor data and a user interface selection. The sound rendering modes include a number of mid-side modes and at least one direct-ambient mode. Other embodiments are also described and claimed.
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公开(公告)号：US20180091922A1
公开(公告)日：2018-03-29
申请号：US15465540
申请日：2017-03-21
申请人： Apple Inc.
CPC分类号： H04S7/304 , G06F3/012 , H04R5/033 , H04R5/04 , H04R2420/07 , H04R2460/07 , H04S2400/01 , H04S2400/11 , H04S2420/01
摘要： A binaural sound reproduction system, and methods of using the binaural sound reproduction system to dynamically re-center a frame of reference for a virtual sound source, are described. The binaural sound reproduction system may include a reference device, e.g., a mobile device, having a reference sensor to provide reference orientation data corresponding to a direction of the reference device, and a head-mounted device, e.g., headphones, having a device sensor to provide device orientation data corresponding to a direction of the head-mounted device. The system may use the reference orientation data to determine whether the head-mounted device is being used in a static or dynamic use case, and may adjust an audio output to render the virtual sound source in an adjusted source direction based on the determined use case. Other embodiments are also described and claimed.
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公开(公告)号：US12087284B1
公开(公告)日：2024-09-10
申请号：US17955509
申请日：2022-09-28
申请人： Apple Inc.
CPC分类号： G10L15/08 , G06F3/16 , G10L13/02 , H04R3/04 , H04R2430/01
摘要： An appliance can include a microphone transducer, a processor, and a memory storing instructions. The appliance is configured to receive an audio signal at the microphone transducer and to detect an utterance in the audio signal. The appliance is further configured to classify a speech mode based on the utterance. The appliance is further configured to determine conditions of an environment of the appliance. The appliance is further configured to select at least one of a playback volume or a speech output mode from a plurality of speech output modes based on the classification, and the conditions of the environment of the appliance. The appliance is further configured to adapt the playback volume and/or mode of played-back speech according to the speech output mode. The appliance may be configured to synthesize speech according to the speech output mode, or to modify synthesized speech according to the speech output mode.
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公开(公告)号：US11805382B2
公开(公告)日：2023-10-31
申请号：US17673721
申请日：2022-02-16
申请人： Apple Inc.
CPC分类号： H04S7/304 , G06F3/012 , H04R5/033 , H04R5/04 , H04R2420/07 , H04R2460/07 , H04S2400/01 , H04S2400/11 , H04S2420/01
摘要： A binaural sound reproduction system, and methods of using the binaural sound reproduction system to dynamically re-center a frame of reference for a virtual sound source, are described. The binaural sound reproduction system may include a reference device, e.g., a mobile device, having a reference sensor to provide reference orientation data corresponding to a direction of the reference device, and a head-mounted device, e.g., headphones, having a device sensor to provide device orientation data corresponding to a direction of the head-mounted device. The system may use the reference orientation data to determine whether the head-mounted device is being used in a static or dynamic use case, and may adjust an audio output to render the virtual sound source in an adjusted source direction based on the determined use case. Other embodiments are also described and claimed.
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