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公开(公告)号：US11244659B2
公开(公告)日：2022-02-08
申请号：US16613892
申请日：2018-05-21
发明人： Lasse Laaksonen , Anssi Rämö , Arto Lehtiniemi , Jussi Leppänen
摘要： A method apparatus, and computer program, the method comprising: storing mediated reality content and associated information relating to a first real space in which the mediated reality content has been displayed; selecting the mediated reality content for display in a second real space; obtaining information relating to the second real space; and using the information relating to the first real space and the information relating to the second real space to adapt the mediated reality content for display in the second real space.
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公开(公告)号：US11228833B2
公开(公告)日：2022-01-18
申请号：US15734324
申请日：2019-06-17
发明人： Lasse Laaksonen , Arto Lehtiniemi , Antti Eronen , Jussi Leppänen
摘要： An apparatus comprising means configured to: receive audio content from a remote user device, the audio content comprising primary audio and secondary audio, the secondary audio being different to the primary audio and comprising ambient audio; receive secondary audio importance information associated with said audio content and indicative of an importance of the secondary audio; receive current audio presentation information indicative of at least whether audio from one or more audio sources is currently being presented as spatial audio such that respective audio of the one or more audio sources is to be perceived as originating from one or more respective directions or ranges of directions around the user; provide for presentation of the primary audio; and provide for presentation of the secondary audio based on the secondary audio importance information and the current audio presentation information.
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公开(公告)号：US20210392434A1
公开(公告)日：2021-12-16
申请号：US17284057
申请日：2019-10-01
发明人： Anssi Rämö , Arto Lehtiniemi , Antti Eronen , Lasse Laaksonen , Joonas Nikunen
摘要： An apparatus, method and computer program is described comprising: receiving a near-field audio source signal from a near-field microphone (22); receiving a far-field audio signal from an array comprising one or more far-field microphones (23); determining a filter length of a first portion of a room impulse response filter for the near-field microphone, wherein said filter length of said first portion is the same at each of a plurality of frequency bands of the filter and wherein said filter length of said first portion includes a direct acoustic propagation delay; and determining a filter length of a second portion of the room impulse response filter at each of the plurality of frequency bands, wherein the filter length of said second portion is frequency-dependent.
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公开(公告)号：US11172290B2
公开(公告)日：2021-11-09
申请号：US16767657
申请日：2018-11-15
摘要： A method, apparatus and computer program, the method comprising: obtaining a first audio signal emitted by an audio source, wherein the first audio signal is captured by a first microphone located at a first position; obtaining at least one second audio signal emitted by the same audio source, wherein the at least one second audio signal is captured by one or more second microphones located at one or more second positions which are different to the first position; determining if one or more of the second audio signals were obtained within a threshold time; and if one or more second audio signals were obtained within the threshold time causing the one or more second audio signals that were obtained within the threshold time to be processed for rendering spatial audio to a user; and if one or more second audio signals were not obtained within the threshold time causing, at least part of, the one or more second audio signals that were not obtained within the threshold time to be discarded.
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15.发明授权公开(公告)号：US10152967B2
公开(公告)日：2018-12-11
申请号：US15117232
申请日：2015-02-12
发明人： Miikka Vilermo , Arto Lehtiniemi , Lasse Laaksonen , Mikko Tammi
摘要： A method comprising receiving audio information by way of a plurality of microphones comprised by an apparatus, determining at least one spatial audio property of the audio information in relation to the apparatus, determining an operational directive based, at least in part, on the spatial audio property, and performing one or more operations in conformance with the operational directive is disclosed.
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公开(公告)号：US20240312469A1
公开(公告)日：2024-09-19
申请号：US18678716
申请日：2024-05-30
IPC分类号： G10L19/008 , G10L19/00
CPC分类号： G10L19/008 , G10L2019/0001
摘要： An apparatus configured to: obtain spatial audio content; decode encoded spatial metadata associated with the spatial audio content based, at least partially, on a configuration parameter indicative of a codec configuration used to encode, at least in part, spatial metadata; determine at least one prototype audio signal based, at least partially, on the spatial audio content and a configuration of at least one output device; and determine one or more spatial audio signals based, at least partially, on the at least one prototype audio signal and the decoded spatial metadata; and provide, to the at least one output device, the one or more spatial audio signals.
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公开(公告)号：US12035127B2
公开(公告)日：2024-07-09
申请号：US18188820
申请日：2023-03-23
发明人： Lasse Laaksonen
IPC分类号： H04S7/00 , G10L19/008
CPC分类号： H04S7/304 , G10L19/008 , H04S2400/01 , H04S2400/11 , H04S2420/11
摘要： An apparatus configured to: obtain at least one spatial audio signal that defines an audio scene forming at least in part an immersive media content; obtain metadata associated with the at least one spatial audio signal; obtain at least one augmentation control parameter associated with the at least one spatial audio signal; obtain at least one augmentation audio signal; render an output audio signal that is based, at least partially, on the at least one spatial audio signal, the metadata associated with the at least one spatial audio signal, the at least one augmentation control parameter, and the at least one augmentation audio signal; and obtain an indication that at least part of the at least one spatial audio signal has been omitted from the output audio signal based, at least partially, on at least part of the at least one augmentation audio signal included in the output audio signal.
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公开(公告)号：US11924627B2
公开(公告)日：2024-03-05
申请号：US17295254
申请日：2019-11-18
发明人： Lasse Laaksonen
CPC分类号： H04S7/303 , G10L25/21 , H04R1/406 , H04R3/005 , H04R5/027 , H04S3/008 , G10L19/008 , H04S2400/03 , H04S2400/11 , H04S2400/15 , H04S2420/03 , H04S2420/11
摘要： An apparatus including circuitry configured for: defining at least one ambience audio representation, the ambience audio representation includes at least one respective diffuse background audio signal and at least one parameter, the at least one parameter associated with the at least one respective diffuse background audio signal and further associated with at least one frequency range or at least one part of the frequency range, at least one time period or at least one part of the time period and a directional range for a defined position within an audio field, wherein the at least one ambience component representation is configured to be used in rendering an ambiance audio signal by a 6-degrees-of-freedom or enhanced 3-degrees-of-freedom Tenderer by processing, based on the at least one ambience audio representation and a listener position and/or direction, the respective diffuse background audio signal.
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公开(公告)号：US11832078B2
公开(公告)日：2023-11-28
申请号：US17737441
申请日：2022-05-05
IPC分类号： H04S3/02 , G10L19/008 , H04R5/02 , H04S7/00
CPC分类号： H04S3/02 , G10L19/008 , H04R5/02 , H04S7/302 , H04S2420/03
摘要： An apparatus configured to: determine, for two or more speaker channel audio signals, at least one spatial audio parameter for providing spatial audio reproduction; determine, between the two or more speaker channel audio signals, at least one coherence parameter, wherein the at least one coherence parameter is configured to provide at least one inter-channel coherence information between the two or more speaker channel audio signals for respective ones of at least two frequency bands of the two or more speaker channel audio signals; determine at least one value based, at least partially, on the at least one coherence information, wherein the at least one value is configured to indicate at least one information associated with the at least one inter-channel coherence information; and transmit the at least one spatial audio parameter and the at least one determined value.
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公开(公告)号：US11676612B2
公开(公告)日：2023-06-13
申请号：US17257813
申请日：2019-06-20
发明人： Adriana Vasilache , Anssi Rämö , Lasse Laaksonen
IPC分类号： G10L19/02 , G10L19/002 , G10L19/008 , G10L19/038
CPC分类号： G10L19/0204 , G10L19/002 , G10L19/008 , G10L19/038
摘要： An apparatus comprising means for: receiving values for sub-bands of a frame of an audio signal, the values comprising at least one azimuth value, at least one elevation value and at least one energy ratio value for each sub-band; determining an allocation of first number of bits to encode the values of the frame, wherein the first number of bits are fixed; encoding the at least one energy ratio value for a frame based on a defined allocation of a second number of bits from the first number of bits; encoding the at least one azimuth value and/or at least one elevation value of the frame based on a defined allocation of a third number of bits from the first number of bits, wherein the third number of bits is variably distributed on a sub-band-by-sub-band basis.
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