公开(公告)号：US20230362537A1

公开(公告)日：2023-11-09

申请号：US18027249

申请日：2021-08-30

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Mikko TAMMI ,  Juha VILKAMO

IPC: H04R1/40 ,  H04S7/00 ,  H04R29/00

CPC classification number: H04R1/406 ,  H04S7/30 ,  H04R29/005 ,  H04R2201/401 ,  H04S2420/01 ,  H04S2400/15 ,  H04S2400/01

Abstract: An apparatus including circuitry configured to: obtain two or more audio signals, wherein each audio signal is associated with a microphone array; obtain at least one value associated with an inter-channel difference based on the two or more audio signals; obtain at least one parameter value associated with the two or more audio signals; obtain at least one value associated with an inter-aural difference based at least on the at least one parameter value; generate at least two output audio signals by controlling inter-aural level differences of the generated at least two output audio signals based on the at least one value associated with the inter-channel difference and the at least one value associated with the inter-aural difference, such that sounds nearer to the microphone array are reproduced with a higher inter-aural difference at the at least two output audio signals.

公开(公告)号：US20230335141A1

公开(公告)日：2023-10-19

申请号：US17788155

申请日：2020-12-11

Applicant: Nokia Technologies Oy

Inventor： Tapani PIHLAJAKUJA ,  Adriana VASILACHE ,  Mikko-Ville LAITINEN ,  Anssi RÄMÖ ,  Lasse Juhani LAAKSONEN

IPC: G10L19/008 ,  G10L19/032

CPC classification number: G10L19/008 ,  G10L19/032

Abstract: An apparatus comprising means configured to: obtain at least one parameter value (106) associated with at least two time-frequency parts of at least one audio signal (104); obtain at least one similarity value based on the at least one parameter value (106) associated with the at least two time-frequency parts of at least one audio signal (104); determine at least one group of time-frequency parts from the at least two time-frequency parts of at least one audio signal (104), the at least one group of time-frequency parts based on the at least one similarity value; and generate for the at least one group of time-frequency parts at least one associated group parameter (204), the at least one group parameter (204) based on the at least one parameter value (106) associated with the time-frequency parts.

公开(公告)号：US20230197086A1

公开(公告)日：2023-06-22

申请号：US17786088

申请日：2020-11-13

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Lasse LAAKSONEN ,  Adriana VASILACHE ,  Tapani PIHLAJAKUJA ,  Anssi RÄMÖ

IPC: G10L19/008 ,  H04S7/00

CPC classification number: G10L19/008 ,  H04S7/302 ,  H04S2420/03

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding comprising: means for determining at least two of a type of spatial audio parameter for one or more audio signals, wherein a first of the type of spatial audio parameter is associated with a first group of samples in a domain of the one or more audio signals and a second of the type of spatial audio parameter is associated with a second group of samples in the domain of the one or more audio signals; and means for merging the first of the type of spatial audio parameter and the second of the type of spatial audio parameter into a merged spatial audio parameter.

公开(公告)号：US20230179947A1

公开(公告)日：2023-06-08

申请号：US18072827

申请日：2022-12-01

Applicant: Nokia Technologies Oy

Inventor： Antti Johannes ERONEN ,  Sujeet Shyamsundar MATE ,  Pasi LIIMATAINEN ,  Archontis POLITIS ,  Jaakko Valdemar HYRY ,  Mikko-Ville LAITINEN

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/305 ,  H04S3/008 ,  H04S7/302 ,  H04S2420/01

Abstract: An apparatus for assisting spatial rendering for room acoustics, the apparatus including means configured to: obtain directivity data having an identifier, wherein the directivity data includes data for at least two separate directions; obtain at least one room parameter; determine information associated with the directivity data; determine gain data based on the determined information; determine averaged gain data based on the gain data; and generate a bitstream defining a rendering, the bitstream including the averaged gain data and the at least one room parameter such that at least one audio signal associated with the identifier is configured to be rendered based on the at least one room parameter and the determined averaged gain data.

公开(公告)号：US20220417692A1

公开(公告)日：2022-12-29

申请号：US17901138

申请日：2022-09-01

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Juha VILKAMO

IPC: H04S7/00 ,  G10L25/21 ,  H04R3/00 ,  H04R5/027 ,  H04R5/04 ,  H04S3/00 ,  H04S3/02

Abstract: An apparatus configured to: determine, for two or more microphone audio signals, a plurality of spatial audio parameters for providing spatial audio reproduction, wherein the plurality of spatial audio parameters are associated with respective frequency bands of at least two frequency bands of the two or more microphone audio signals; determine at least one coherence parameter associated with a sound field, wherein the sound field is associated with the two or more microphone audio signals; determine at least one audio signal based on the two or more microphone audio signals; and enable the spatial audio reproduction based on the plurality of spatial audio parameters, the at least one coherence parameter, and the at least one determined audio signal.

公开(公告)号：US20210337338A1

公开(公告)日：2021-10-28

申请号：US17270530

申请日：2019-08-02

Applicant: Nokia Technologies Oy

Inventor： Juha VILKAMO ,  Mikko-Ville LAITINEN

IPC: H04S7/00 ,  G10L19/008

Abstract: According to an example embodiment, a method for processing a spatial audio signal that represents an audio scene, wherein the spatial audio signal is controllable and associated with at least two viewing directions is provided, the method including receiving a focus direction and a focus amount; processing the spatial audio signal by modifying the audio scene so as to control emphasis in, at least in part, a portion of the spatial audio signal in said focus direction according to said focus amount; and outputting the processed spatial audio signal, wherein the modified audio scene enables the emphasis in, at least in part, said portion of the spatial audio signal in said focus direction according to said focus amount.

公开(公告)号：US20190289420A1

公开(公告)日：2019-09-19

申请号：US16335381

申请日：2017-09-14

Applicant: Nokia Technologies Oy

Inventor： Jorma MAKINEN ,  Mikko TAMMI ,  Mikko-Ville LAITINEN ,  Jussi VIROLAINEN

IPC: H04S7/00 ,  H03G3/24 ,  H04R1/28

Abstract: Apparatus including a processor configured to: provide a position for at least one sound source relative to a reference position; analyse at least one input audio signal associated with the at least one sound source to determine at least one gain value based on the at least one input audio signal and the position for the at least one sound source relative to the reference position; and synthesize at least two output channels based on the at least one input audio signal, a directional transfer function pair, the at least one gain value and the position for the at least one sound source relative to the reference position.

公开(公告)号：US20180310114A1

公开(公告)日：2018-10-25

申请号：US15767458

申请日：2016-10-11

Applicant: Nokia Technologies Oy

Inventor： Antti ERONEN ,  Jussi LEPPANEN ,  Arto LEHTINIEMI ,  Matti HAMALAINEN ,  Sujeet MATE ,  Francesco CRICRI ,  Mikko-Ville LAITINEN ,  Mikko TAMMI ,  Ville-Veikko MATTILA

IPC: H04S7/00 ,  H04R1/40

CPC classification number: H04S7/303 ,  H04R1/406 ,  H04R3/005 ,  H04R5/027 ,  H04R2430/23 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/01

Abstract: Apparatus including a processor configured to: receive a spatial audio signal associated with a microphone array configured to provide spatial audio capture and at least one additional audio signal associated with an additional microphone, the at least one additional microphone signal having been delayed by a variable delay determined such that the audio signals are time aligned; receive a relative position between a first position associated with the microphone array and a second position associated with the additional microphone; generate at least two output audio channel signals by processing and mixing the spatial audio signal and the at least one additional audio signal based on the relative position between the first position and the second position such that the at least two output audio channel signals present an augmented audio scene.

公开(公告)号：US20250157475A1

公开(公告)日：2025-05-15

申请号：US18838799

申请日：2023-01-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mikko-Ville LAITINEN ,  Tapani PIHLAJAKUJA ,  Juha Tapio VILKAMO ,  Adriana VASILACHE ,  Lasse Juhani LAAKSONEN

IPC: G10L19/008 ,  G10L19/16

Abstract: An apparatus comprising means for: obtaining a bitstream comprising encoded spatial metadata and encoded transport audio signals; decoding transport audio signals from the bitstream encoded transport audio signals; decoding spatial metadata from the bitstream encoded spatial metadata; generating an encoding metric; and generating spatial audio signals from the transport audio signals based on the encoding metric and the spatial metadata.

公开(公告)号：US20250071497A1

公开(公告)日：2025-02-27

申请号：US18723930

申请日：2022-12-09

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Juha Tapio VILKAMO

IPC: H04S7/00 ,  H04S3/02

Abstract: Examples of the disclosure enable spatial audio rendering in a different format to the format that is used for the spatial audio coding. In examples of the disclosure spatial audio and first spatial metadata in a first format are obtained. The first spatial metadata enables rendering of spatial audio in a first audio format. In order to enable rendering of the spatial audio in a different format the spatial metadata is converted to second spatial metadata corresponding to a second audio format. The spatial audio can then be rendered for the second format using the second spatial metadata.