公开(公告)号：US20200288262A1

公开(公告)日：2020-09-10

申请号：US16649433

申请日：2018-10-01

Applicant: Nokia Technologies Oy

Inventor： Antti ERONEN ,  Arto LEHTINIEMI ,  Jussi LEPPANEN ,  Tapani PIHLAJAKUJA

IPC: H04S7/00

Abstract: An apparatus for spatial audio signal processing, the apparatus including at least one processor configured to: receive captured audio content, the captured audio content captured within a capture environment with defined geometry; determine audio directions and distances associated with the captured audio content; determine a listening space area geometry; map the audio directions and distances associated with the captured audio content relative to the defined geometry to the listening space area geometry; and synthesize a volumetric audio based on the mapped audio directions and distances to generate an audio content experience within the listening space area geometry.

公开(公告)号：US20200280816A1

公开(公告)日：2020-09-03

申请号：US16650190

申请日：2018-10-01

Applicant: Nokia Technologies Oy

Inventor： Antti ERONEN ,  Arto LEHTINIEMI ,  Jussi LEPPANEN ,  Tapani PIHLAJAKUJA

IPC: H04S7/00 ,  G10K15/12 ,  H04R3/00

Abstract: An apparatus for audio signal rendering, the apparatus including at least one processor configured to: receive at least one microphone audio signal captured by at least one microphone within a capture environment; receive at least one projection audio signal, wherein the at least one projection audio signal is a room-impulse-response filtered at least one microphone audio signal within the capture environment; receive at least one residual audio signal, wherein the at least one residual audio signal is a result of removing the at least one projection audio signal from at least one audio signal captured by a microphone array within the capture environment; and generate at least two volumetric audio signals based on the at least one microphone audio signal, the at least one projection audio signal and the at least one residual audio signal.

公开(公告)号：US20240185869A1

公开(公告)日：2024-06-06

申请号：US18552132

申请日：2021-03-22

Applicant: NOKIA TECHNOLOGIES OY

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

IPC: G10L19/032 ,  G10L19/002 ,  G10L19/008

CPC classification number: G10L19/032 ,  G10L19/002 ,  G10L19/008

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding configured to determining an audio scene separation metric between an input audio signal and a further input audio signal. and using the audio scene separation metric for quantizing of at least one spatial audio parameter of the input audio signal.

公开(公告)号：US20240127828A1

公开(公告)日：2024-04-18

申请号：US18263494

申请日：2021-01-29

Applicant: NOKIA TECHNOLOGIES OY

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

IPC: G10L19/002 ,  G10L19/035 ,  G10L25/21

CPC classification number: G10L19/002 ,  G10L19/035 ,  G10L25/21

Abstract: An apparatus comprising means for: obtaining values for parameters representing an audio signal, the values comprising at least one directional value and at least one energy ratio value for each sub-band of at least two sub-bands of a frame of the audio signal; determining a penalty value for each sub-band; and on a sub-band by sub-band basis: selecting a sub-band based on the penalty value; and encoding, for the selected sub-band, the at least one directional value for each sub-band; distributing any bits allocated for encoding the selected sub-band at least one directional value which are not used in the encoding of the at least one directional value to succeeding selections of sub-bands.

公开(公告)号：US20230402053A1

公开(公告)日：2023-12-14

申请号：US17783735

申请日：2020-11-13

Applicant: Nokia Technologies Oy

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

IPC: G10L25/03

CPC classification number: G10L25/03

Abstract: There is inter alia disclosed an apparatus for spatial audio encoding comprising: means for determining a first spatial audio parameter of a frequency sub band of one or more audio signals and a second spatial audio parameter of the frequency sub band of the one or more audio signals; and means for combining the first spatial audio parameter and the second spatial audio parameter to provide a combined spatial audio parameter for the frequency sub band.

公开(公告)号：US20230100071A1

公开(公告)日：2023-03-30

申请号：US17908129

申请日：2021-03-05

Applicant: Nokia Technologies Oy

Inventor： Antti ERONEN ,  Tapani PIHLAJAKUJA ,  Archontis POLITIS ,  Otto PUOMIO ,  Tapio LOKKI

IPC: H04S7/00

Abstract: An apparatus comprising means configured to: obtain at least one impulse response; obtain at least one reflection filter based on the obtained at least one impulse response, wherein the at least one reflection filter is configured to determine at least one early reflection from an acoustic surface which is not overlapped in time by any other reflection, wherein a duration of the at least one early reflection is shorter than a duration of the obtained at least one impulse response. In addition, an apparatus comprising means configured to: obtain at least one impulse response, wherein the at least one impulse response is configured with a perceivable timbre during rendering; create a timbral modification filter; obtain at least one audio signal; and render at least one output audio signal based n the at least one audio signal, wherein the at least one output signal is based on an application of the timbral modification filter.

公开(公告)号：US20220115024A1

公开(公告)日：2022-04-14

申请号：US17287568

申请日：2019-10-28

Applicant: Nokia Technologies Oy

Inventor： Tapani PIHLAJAKUJA ,  Lasse LAAKSONEN ,  Antti ERONEN ,  Arto LEHTINIEMI

IPC: G10L19/008

Abstract: Examples of the disclosure relate to apparatus, methods and computer programs for encoding spatial metadata. The example apparatus includes circuitry configured for obtaining spatial metadata associated with spatial audio content and obtaining a configuration parameter indicative of a source format of the spatial audio content. The circuitry is also configured to use the configuration parameter to select a method of compression of the spatial metadata associated with the spatial audio content.

公开(公告)号：US20210319799A1

公开(公告)日：2021-10-14

申请号：US17270354

申请日：2019-08-08

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Tapani PIHLAJAKUJA ,  Mikko-Ville LAITINEN

IPC: G10L19/02 ,  G10L19/008

Abstract: An apparatus comprising means for: obtaining at least one audio signal; obtaining at least one parameter respectively for each of at least two frequency bands associated with the at least one audio signal; and selecting a frequency band of the at least two frequency bands based on comparing at least one further respective parameter for each of the at least two frequency bands wherein the at least one further respective parameter is determined from each of the at least two frequency bands; generating an output comprising a selection of the at least one parameter associated with the selected frequency band of the at least two frequency bands, such that the selection of the at least one parameter associated with the selected frequency band is configured to reduce a bitrate or size of the output and wherein the at least one parameter of the selected frequency band is configured to represent respective parameters of the at least two frequency bands.

公开(公告)号：US20210210104A1

公开(公告)日：2021-07-08

申请号：US17058699

申请日：2019-05-29

Applicant: Nokia Technologies Oy

Inventor： Lasse LAAKSONEN ,  Anssi RAMO ,  Mikko-Ville LAITINEN ,  Tapani PIHLAJAKUJA

IPC: G10L19/008 ,  G06F3/16 ,  H04R3/00

Abstract: An apparatus including circuitry configured for determining for at least one first audio signal of an audio signal format, at least one metadata parameter; determining for at least one further audio signal of a further audio signal format; at least one further metadata parameter; controlling combining of the at least one metadata parameter with the at least one further metadata parameter to generate a combined metadata, wherein the combined metadata is configured to be associated with a combined audio signal formed from the at least one first audio signal and the at least one further audio signal in such a way that the combined metadata includes at least one spatial audio parameter.

公开(公告)号：US20210058663A1

公开(公告)日：2021-02-25

申请号：US16985571

申请日：2020-08-05

Applicant: Nokia Technologies Oy

Inventor： Lasse Juhani LAAKSONEN ,  Tapani PIHLAJAKUJA ,  Miikka Tapani VILERMO ,  Arto Juhani LEHTINIEMI

IPC: H04N21/431 ,  H04N21/485 ,  H04N21/41

Abstract: A method, apparatus as computer program is described comprising: obtaining or receiving content for presentation, wherein the content includes spatial audio data; rendering said content in a first direction; rendering said content in a second direction different to said first direction; and controlling the rendering of said content in said first direction and said second direction dependent, at least in part, on an angle between said first and second directions.