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公开(公告)号：US20240363127A1
公开(公告)日：2024-10-31
申请号：US18770425
申请日：2024-07-11
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Mikko-Ville LAITINEN , Adriana VASILACHE
Abstract: There is inter alia disclosed an apparatus for spatial audio encoding which can receive or determine for one or more audio signals, spatial audio parameters on a sub band basis for providing spatial audio reproduction, the spatial audio parameters can comprise a coherence value for each sub band of a plurality of sub-bands of a frame. The apparatus then determines a significance measure for the coherence values of the plurality of sub bands of the frame and uses the significance measure to determine whether to encode the coherence values of the plurality of sub bands of the frame.
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公开(公告)号：US20240087589A1
公开(公告)日：2024-03-14
申请号：US18367510
申请日：2023-09-13
Applicant: Nokia Technologies Oy
Inventor： Juha Tapio VILKAMO , Mikko-Ville LAITINEN , Sampo VESA
IPC: G10L21/0364 , H04R5/00
CPC classification number: G10L21/0364 , H04R5/00
Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for spatial processing audio scenes with improved intelligibility for speech or other key sounds. In examples of the disclosure at least one audio signal including two or more channels is obtained. The audio signal is processed with program code to identify at least a first portion of the audio signal wherein the first portion predominantly includes audio of interest. The first portion is processed using a first process. The second portion is processed using a second process including spatial audio processing. The first process includes no spatial audio processing or a low level of spatial audio processing compared to the second process and the second portion predominantly includes a remainder. The processed first portion and second portion can be played back using two or more loudspeakers.
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公开(公告)号：US20230319469A1
公开(公告)日：2023-10-05
申请号：US18012543
申请日：2021-06-03
Applicant: Nokia Technologies OY
Inventor： Juha Vilkamo , Mikko-Ville LAITINEN
CPC classification number: H04R3/005 , H04R3/04 , H04R5/027 , H04S7/30 , H04R2201/401 , H04R2410/01 , H04R2410/07 , H04R2430/01 , H04S2400/15
Abstract: An apparatus including circuitry configured to: obtain at least two microphone audio signals; determine audio data including different directivity configurations that are able to capture sound from substantially a same or similar direction; determine at least one value related to the sound arriving from at least the same or similar direction based on the audio data; determine further audio data including at least one configuration which provides a more omnidirectional directivity configuration than the audio data; determine at least one value related to the sound based on the further audio data; and determine a noise suppression parameter based on the at least one value related to the arriving sound and the value related to the sound. The spatial noise suppression parameter is configured to be applied to the microphone audio signals in the generation of a playback audio signal.
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公开(公告)号：US20230024675A1
公开(公告)日：2023-01-26
申请号：US17953134
申请日：2022-09-26
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Mikko-Ville LAITINEN , Mikko TAMMI , Jussi VIROLAINEN , Jorma MÄKINEN
Abstract: According to an example embodiment, a method for processing a multi-channel input audio signal representing a sound field into a multi-channel output audio signal representing said sound field in accordance with a predefined loudspeaker layout is provided, the method comprising the following for at least one frequency band: obtaining spatial audio parameters that are descriptive of spatial characteristics of said sound field; estimating a signal energy of the sound field represented by the multi-channel input audio signal; estimating, based on said signal energy and the obtained spatial audio parameters, respective output signal energies for channels of the multi-channel output audio signal according to said predefined loudspeaker layout; determining a maximum output energy as the largest of the output signal energies across channels of said multi-channel output audio signal; and deriving, on basis of said maximum output energy, a gain value for adjusting sound reproduction gain in at least one of said channels of the multi-channel output audio signal.
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公开(公告)号：US20220295212A1
公开(公告)日：2022-09-15
申请号：US17638393
申请日：2020-09-17
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Juha VILKAMO , Riitta VÄÄNÄNEN , Sampo VESA , Mikko-Ville LAITINEN , Jussi VIROLAINEN
Abstract: According to an example embodiment, a method for processing an input audio signal (101) in accordance with spatial metadata (103) so as to play back a spatial audio signal in a device (50) in dependence of at least one sound reproduction characteristic (105) of the device is provided, the method comprising obtaining said input audio signal (101) and said spatial metadata (103); obtaining said at least one sound reproduction characteristic (105) of the device; rendering a first portion of the spatial audio signal using a first type playback procedure applied on the input audio signal in dependence of the spatial metadata (103), wherein the first portion comprises sound directions within a front region of the spatial audio signal; and rendering a second portion of the spatial audio signal using a second type playback procedure applied on the input audio signal in dependence of the spatial metadata (103) and in dependence of said at least one sound reproduction characteristic (105), wherein the second portion comprises sound directions that are not included in the first portion and where the second type playback procedure is different from the first playback procedure and involves cross-talk cancellation processing.
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Patent Agency Ranking
公开(公告)号：US20220167110A1
公开(公告)日：2022-05-26
申请号：US17518198
申请日：2021-11-03
Applicant: Nokia Technologies Oy
Inventor： Arto Juhani LEHTINIEMI , Lasse LAAKSONEN , Mikko-Ville LAITINEN
IPC: H04S7/00 , G10K11/178
Abstract: An apparatus, method and computer program product for: receiving information on a position of at least one user with respect to a spatial audio field provided by an audio source device, determining an audio volume level at the position of the at least one user, receiving information relating to background noise generated by the audio source device when providing the spatial audio field, determining, based on the audio volume level at the position of the at least one user and the information relating to the background noise, control information for controlling the audio source device, and controlling the audio source device based on the control information when providing the spatial audio field.
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公开(公告)号：US20210368248A1
公开(公告)日：2021-11-25
申请号：US17392338
申请日：2021-08-03
Applicant: Nokia Technologies Oy
Inventor： Miikka Vilermo , Mikko-Ville LAITINEN , Koray OZCAN
Abstract: An apparatus including a body, a plurality of microphones arranged in a predetermined geometry relative to the body such that the apparatus is configured to capture sound substantially from all directions around the body to produce direction and ambience information for the captured sound, and electronics for processing signals from the plurality of microphones.
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公开(公告)号：US20210219084A1
公开(公告)日：2021-07-15
申请号：US17058742
申请日：2019-05-29
Applicant: Nokia Technologies Oy
Inventor： Mikko-Ville LAITINEN , Lasse LAAKSONEN , Juha VILKAMO , Tapani PIHLAJAKUJA
IPC: H04S3/02 , H04S7/00 , H04R5/02 , G10L19/008
Abstract: Apparatus including circuitry configured for: determining, for two or more speaker channel audio signals, at least one spatial audio parameter for providing spatial audio reproduction; determining between the two or more speaker channel audio signals at least one audio signal relationship parameter, the at least one audio signal relationship parameter being associated with at least one coherence parameter, in such a way that the at least one coherence parameter provides at least one interchannel coherence information for at least two frequency bands, to reproduce the two or more speaker channel audio signals based on the at least one spatial audio parameter and the at least one audio signal relationship parameter; and transmitting using at least one determined value.
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公开(公告)号：US20210152969A1
公开(公告)日：2021-05-20
申请号：US16624355
申请日：2018-06-14
Applicant: Nokia Technologies Oy
Inventor： Juha Vilkamo , Mikko-Ville LAITINEN
Abstract: A method for spatial audio signal processing including: determining at least one first direction parameter for at least one frequency band based on microphone signals received from a first microphone array; determining at least one second direction parameter for the at least one frequency band based on at least one microphone signal received from at least one second microphone, wherein microphones from the first microphone array and the at least one second microphone are spatially separated from each other; processing the determined at least one first direction parameter and the at least one second direction parameter to determine at least one distance parameter for the at least one frequency band; and enabling an output and/or store of the at least one distance parameter, at least one audio signal, and the at least one first direction parameter.
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公开(公告)号：US20210076130A1
公开(公告)日：2021-03-11
申请号：US17053095
申请日：2019-05-07
Applicant: Nokia Technologies Oy
Inventor： Mikko-Ville LAITINEN , Juha VILKAMO
Abstract: Examples of the disclosure relate to apparatus, electronic devices, methods and computer programs. The apparatus are configured to obtain at least a first audio signal and a second audio signal wherein the first audio signal and the second audio signal are captured by a microphone array including at least two microphones. The apparatus are also configured to identify at least a first direction and at least a second direction. The first and second directions are identified for a plurality of frequency bands. The first direction and the second direction are identified by using delay parameters between at least the first audio signal and the second audio signal.
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