公开(公告)号：US20250039602A1

公开(公告)日：2025-01-30

申请号：US18716986

申请日：2022-11-25

Applicant: Nokia Technologies Oy

Inventor： Juha Tapio Vilkamo ,  Mikko-Ville LAITINEN

IPC: H04R3/00

Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for providing spatial audio. In examples of the disclosure speech or other sources of a first category can be identified. Spatial information relating to the speech or sources of a first category can be determined using data obtained from audio signals. The identified speech or other sources of a first category can then be spatially reproduced using the spatial information. This can enable the speech or other sources of a first category to be enhanced compared to other parts of the sound signals. This can provide for improved spatial audio content.

公开(公告)号：US20240259744A1

公开(公告)日：2024-08-01

申请号：US18591517

申请日：2024-02-29

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Lasse LAAKSONEN ,  Juha VILKAMO

IPC: H04S3/02 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/008 ,  H04S2400/01 ,  H04S2420/11

Abstract: An apparatus configured to: obtain at least one signal, wherein the at least one signal comprises one or more transport audio signals; obtain an indicator specifying a type of the one or more transport audio signals; and process the one or more transport audio signals based, at least partially, on the indicator to generate one or more processed transport audio signals that are of an at least partially different type than the type of the one or more transport audio signals.

公开(公告)号：US20240048935A1

公开(公告)日：2024-02-08

申请号：US18265473

申请日：2021-11-18

Applicant: Nokia Technologies Oy

Inventor： Jussi Kalevi Virolainen ,  Juha Taplo VILKAMO ,  Mikko-Ville LAITINEN

IPC: H04S7/00

CPC classification number: H04S7/304 ,  H04S7/308 ,  H04S2400/15

Abstract: Examples of the disclosure could be implemented in systems where a first device, such as a mobile phone or other processing device, renders audio input signals to provide spatial audio. The spatial audio can then be transmitted to another device, such as a headset or earphones for playback. In such examples the rendering apparatus is configured to receive one or more audio input signals and information indicative of a user head position. The rendering apparatus processes the received one or more audio input signals to obtain a spatial audio signal based on the user head position and obtains compensation metadata. The compensation metadata includes information indicating how the spatial audio signal should be adjusted to account for a change in the user head position. The rendering apparatus includes the compensation metadata to be used to adjust the spatial audio signal to account for a change in the user head position.

公开(公告)号：US20230388734A1

公开(公告)日：2023-11-30

申请号：US18027728

申请日：2021-08-30

Applicant: Nokia Technologies Oy

Inventor： Sujeet Shyamsundar MATE ,  Mikko-Ville LAITINEN

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/303 ,  H04S3/008 ,  H04S2400/11 ,  H04S2420/11 ,  H04S2400/01

Abstract: Apparatuses, systems, methods, and computer programs enable spatial audio rendering that allows for six degrees of freedom of movement of a listener. The spatial audio comprises higher order ambisonic signals. An apparatus includes circuitry for generating audio signal content sets that provide spatial audio scenes; determining positions in which the spatial audio scenes are audible; and associating a subset of audio signal content sets with the determined positions such that a first subset of audio signal content sets is associated with a first position and a second subset of audio signal content sets is associated with a second position. When audio signal content is provided for rendering, the first subset of audio signal content sets is retrieved if the listener is at the first position and if the listener is at the second position the second subset of audio signal content sets is retrieved.

公开(公告)号：US20230335143A1

公开(公告)日：2023-10-19

申请号：US18044666

申请日：2021-08-19

Applicant: Nokia Technologies OY

Inventor： Tapani PIHLAJAKUJA ,  Adriana VASILACHE ,  Mikko-Ville LAITINEN

IPC: G10L19/008

CPC classification number: G10L19/008 ,  H04S7/305

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding configured to convert two or more energy ratios associated with a time frequency tile of one or more audio signals to a further energy ratio parameter which is related to the two or more energy ratios; quantize the further energy ratio parameter using a first quantizer; determine a distribution factor of energy ratios dependent on a ratio of a first of the two or more energy ratios to the sum of the two or more energy ratios; select a further quantizer from a plurality of further quantizers using the quantized further energy ratio parameter; and quantize the distribution factor of energy ratios using the selected further quantizer.

公开(公告)号：US20230096873A1

公开(公告)日：2023-03-30

申请号：US17908969

申请日：2021-02-23

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Juha VILKAMO ,  Mikko-Ville LAITINEN

IPC: H04S7/00 ,  H04R5/02 ,  H04R3/14 ,  H04S3/00

Abstract: An apparatus (101) for enabling reproduction of spatial audio signals. The apparatus comprises means for obtaining (401) audio signals (501) comprising one or more channels and obtaining (403) spatial metadata (503) relating to the audio signals (501). The spatial metadata (503) comprises information that indicates how to spatially reproduce the audio signals. The apparatus also comprises means for obtaining (405) information relating to a field of view of video (505) wherein the video is for display on a display (205) of a rendering device (201) and wherein the video is associated with the audio signals (501). The apparatus also comprises means for aligning (407) spatial reproduction of the audio signals based, at least in part, on the obtained spatial metadata (503), with objects (309A, 309B) in the video according to the obtained information relating to the field of view of video; and enabling (409) reproduction of the audio signals based on the aligning (407).

公开(公告)号：US20220417656A1

公开(公告)日：2022-12-29

申请号：US17897834

申请日：2022-08-29

Applicant: Nokia Technologies Oy

Inventor： Mikko-Ville LAITINEN ,  Juha VILKAMO

IPC: H04R3/00 ,  G10L25/18 ,  G10L25/21 ,  H04R1/40

Abstract: A device may be 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 with a microphone array comprising at least two microphones; identify a first direction for a plurality of frequency bands; and identify a second direction for the plurality of frequency bands; wherein the first direction and the second direction are identified based, at least partially, on spatial analysis of the first audio signal and the second audio signal.

公开(公告)号：US20220303711A1

公开(公告)日：2022-09-22

申请号：US17638377

申请日：2020-09-02

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Mikko-Ville LAITINEN ,  Antti ERONEN ,  Juha VILKAMO ,  Tapani PIHLAJAKUJA

IPC: H04S7/00 ,  G06T7/70 ,  G06V40/16 ,  G06V40/20

Abstract: An apparatus (303) comprising means configured to: obtain at least one audio signal (112); determine at least one direction parameter (506) of at least one propagating sound associated with the at least one audio signal (112); determine at least one direction (302) of at least one sound source associated with the at least one audio signal (112); modify the at least one direction parameter (506) in accordance with the determined at least one direction (302); and output the modified at least one direction parameter (508).

公开(公告)号：US20220240038A1

公开(公告)日：2022-07-28

申请号：US17717597

申请日：2022-04-11

Applicant: Nokia Technologies Oy

Inventor： Antti Eronen ,  Mikko-Ville LAITINEN ,  Juha VILKAMO ,  Lasse LAAKSONEN ,  Anssi RAMO

IPC: H04S3/00 ,  G10L19/008 ,  H04S7/00

Abstract: An apparatus configured to: receive at least two audio signals; determine at least one parameter associated with at least two audio signals, wherein the at least one parameter is configured to represent an ambiance energy distribution of the at least two audio signals, wherein the at least one parameter is associated with, at least, a respective energy of ambient sound of the at least two audio signals in a plurality of directions; determine at least one directional parameter; and provide, using at least one of the at least two audio signals, at least one output audio signal based on, at least, the at least one directional parameter and the at least one parameter, wherein the at least one parameter controls ambiance energy distribution of the at least one output signal according to the ambience energy distribution of the at least two audio signals in the plurality of directions.

公开(公告)号：US20210360362A1

公开(公告)日：2021-11-18

申请号：US16625597

申请日：2018-06-08

Applicant: NOKIA TECHNOLOGIES OY

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

IPC: H04S7/00 ,  H04R1/40

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.