-
公开(公告)号：GB2572419A
公开(公告)日：2019-10-02
申请号：GB201805215
申请日：2018-03-29
Applicant: NOKIA TECHNOLOGIES OY
IPC: H04S3/00 , G10L19/008 , H04R3/00 , H04S7/00
Abstract: An apparatus for spatial audio signal rendering configured to receive at least one audio signal based on a defined speaker layout, spatial metadata associated with the associated audio signal, and parameters representing the input speaker layout and the output speaker layout 351, 353. An output audio signal is then synthesized based on the spatial metadata and audio signal 365. Preferably, the apparatus further divides the audio signal into a direct part and diffuse part before it synthesizes a direct audio signal and diffuse audio signal. The direct and diffuse signals are then combined. Preferably the diffuse signal is synthesized via the decorrelation of the audio signal, followed by the generation of a set of gains for each output speaker. In an embodiment, in the case of there being more input speaker nodes than output speakers, certain output speaker nodes will be disabled.
-
公开(公告)号：GB2551780A
公开(公告)日：2018-01-03
申请号：GB201611377
申请日：2016-06-30
Applicant: NOKIA TECHNOLOGIES OY
Inventor： JUHA VILKAMO , JUSSI KALEVI VIROLAINEN
Abstract: The invention relates to obtaining high quality spatial audio signals. An apparatus comprising: a first set of microphones (23, Fig. 2) provided within an electronic device 21; a second set of microphones 27 which are external to the electronic device 21; processing circuitry. The first set of microphones (23, Fig. 2) is used to obtain spatial information 39 which relates to a captured sound field (captured signals 31). The second set of microphones is used to obtain one or more signals 33 which relate to the captured sound field. The one or more signals 33 (from the second set of microphones) are processed 45 using the spatial information 39 (from the first set of microphones). The spatial information may be energy ratios or directional parameters. The second set of microphones may be arranged to obtain a higher quality audio signal than the first set of microphones. The second set of microphones may include higher quality microphones than the first set of microphones. The embodiment is directed towards the electronic device 21 comprising an array of cameras 25.
-
公开(公告)号：GB2572650A
公开(公告)日：2019-10-09
申请号：GB201805811
申请日：2018-04-06
Applicant: NOKIA TECHNOLOGIES OY
Inventor： MIKKO-VILLE ILARI LAITINEN , JUHA VILKAMO
IPC: H04S3/00 , G10L19/008 , H04R3/00 , H04R3/12
Abstract: An apparatus and method to determine, for two or more microphone audio signals, at least one spatial audio parameter for providing spatial audio reproduction 405; and at least one coherence parameter 407 associated with a sound field based on the two or more microphone audio signals, such that the sound field is configured to be reproduced 409 based on the at least one spatial audio parameter and the at least one coherence parameter. Preferably, a spread coherence parameter and a surrounding coherence parameter are determined. The spread coherence parameter being associated with a coherence of a directional part of the sound field while the surrounding coherence parameter being associated with a coherence of a diffuse part of the sound field. Preferably at least one of a direction parameter, energy ratio parameter, a direct-to-total parameter, a directional stability parameter and an energy parameter are also determined. Preferably the coherence is based on determined zeroth and first order spherical harmonics.
-
4.发明专利
公开(公告)号：GB2556093A
公开(公告)日：2018-05-23
申请号：GB201619573
申请日：2016-11-18
Applicant: NOKIA TECHNOLOGIES OY
Inventor： JUHA VILKAMO , MIIKKA TAPANI VILERMO , MIKKO TAPIO TAMMI
Abstract: An apparatus comprises a predetermined shape, and: · at least three microphones 301, 303, 305, located on or within the apparatus, wherein at least one pair from the at least three microphones comprises two microphones 301, 303 which are separated by a shorter distance C of the predetermined shape than at least one other microphone pair 303, 305 of the predetermined shape; and a processor (fig 6) configured to: receive at least three microphone audio signals from the at least three microphones; · analyse at least the microphone audio signals from the two microphones 301, 303 which are separated by the shorter distance C to determine a directional ambiguity decision; and analyse the microphone audio signals from the other microphone pair 303, 305 separated by a longer distance B to determine at least one other sound characteristic.
-
Patent Agency Ranking
公开(公告)号：GB2615323A
公开(公告)日：2023-08-09
申请号：GB202201377
申请日：2022-02-03
Applicant: NOKIA TECHNOLOGIES OY
Inventor： MIKKO-VILLE LAITINEN , JUHA VILKAMO
IPC: G10L19/008
Abstract: Examples of the disclosure relate to apparatus, methods and computer programs that enable rendering of spatial audio comprising both direct and indirect audio. The apparatus can be configured to obtain a spatial audio signal 201 comprising one or more audio signals and associated spatial metadata. The associated spatial metadata is configured to enable rendering of spatial audio from the one or more audio signals. The spatial audio comprises direct audio and indirect audio. The apparatus is also configured to use, at least the associated spatial metadata to determine directional distribution information 203 for the indirect audio. The apparatus is also configured to determine rendering information 205 corresponding to the determined directional distribution information and enable rendering 207 of the spatial audio using the determined rendering information, the one or more audio signals and the associated spatial metadata.
-
公开(公告)号：GB2605190A
公开(公告)日：2022-09-28
申请号：GB202104309
申请日：2021-03-26
Applicant: NOKIA TECHNOLOGIES OY
Inventor： MIKKO-VILLE LAITINEN , JUHA VILKAMO
IPC: G10L19/008 , H04S7/00
Abstract: An apparatus for processing at least two audio signals and associated metadata, the apparatus comprising means configured to: obtain the at least two audio signals, the at least two audio signals comprising at least one audio object portion and at least one non-audio object portion; obtain the associated metadata, wherein the associated metadata is configured to define at least one audio object position and at least one audio object energy proportion; obtain object position control information; determine mixing information based on the object position control information and the at least one audio object position and at least one audio object energy proportion; and process the at least two audio signals based on the mixing information, wherein the processing is configured to enable the at least one object portion of a first of the at least two audio signals to be at least partially moved to a second of the at least two audio signals.
-
公开(公告)号：GB2572420A
公开(公告)日：2019-10-02
申请号：GB201805216
申请日：2018-03-29
Applicant: NOKIA TECHNOLOGIES OY
Inventor： ANTTI ERONEN , MIKKO-VILLE ILARI LAITINEN , JUHA VILKAMO , LASSE JUHANI LAAKSONEN , ANSSI SAKARI RÄMÖ
IPC: H04S3/00 , G10L19/008 , H04R3/00 , H04S7/00
Abstract: An apparatus for spatial audio signal rendering configured to: synthesize 111 an output audio signal 112 from a received audio signal 110, directional parameters 106 108 and a parameter 104 which controls ambiance (diffuse) energy distribution of the output audio signal; the received audio signal based on a spatial audio signal. The ambience energy distribution parameter can describe the location and size of spatial sectors where the ambience energy is largest. It is used, in addition to the directional parameters of existing techniques such as DirAC, as an input to a decoding (synthesis) stage to allow for the manipulation of the diffuse part (stream) of a synthesized audio signal. The apparatus can also comprise a means 101 of determining a received audio signal 110 from a spatial audio signal 100 and a means 103 107 of determining metadata 104 106 108 associated with the received audio signal, the received audio signal and the spatial metadata in this case being stored or transmitted 109 but not synthesized.
-
公开(公告)号：GB2566992A
公开(公告)日：2019-04-03
申请号：GB201715863
申请日：2017-09-29
Applicant: NOKIA TECHNOLOGIES OY
Inventor： JUHA VILKAMO , MIKKO-VILLE ILARI LAITINEN
IPC: H04S7/00
Abstract: Audio signals 34, 36, which represent spatial sound and can be used to render spatial audio using linear methods, are obtained; spatial metadata which corresponds to the spatial sound is also obtained 5; the spatial metadata and the audio signals are associated 33 so that in a first rendering context the obtained audio signals are rendered without using the spatial metadata 35, 37, and in a second rendering context the obtained audio signals are rendered using the spatial metadata 39, 41. The rendering context may comprise the type of rendering device being used (for example a legacy rendering device), movement of the user, and/or the spatial accuracy required during rendering. The metadata may be determined in frequency bands. The audio signals may use spherical harmonics. The audio signals may comprise Ambisonic signals. The metadata may comprise information relating to the spatial properties of a sound space represented by the audio signals.
-
公开(公告)号：GB2554446A
公开(公告)日：2018-04-04
申请号：GB201616478
申请日：2016-09-28
Applicant: NOKIA TECHNOLOGIES OY
Inventor： JUHA VILKAMO , MIKKO-VILLE ILARI LAITINEN
Abstract: Apparatus 100 receives at least two microphone audio signals which may originate from a microphone array 141 and determines, for example by signal analysis, spatial metadata associated with the at least two microphone audio signals. The apparatus synthesizes adaptively a plurality of spherical harmonic audio signals based on at least one microphone audio signal and the spatial metadata in order to output a pre-determined order spatial audio signal format. Part of the microphone audio signals and spatial metadata may be used to generate spherical harmonic signals using traditional linear operations. The synthesis may include amplitude-pan and decorrelation steps. The apparatus can enable the output of SPAC capture systems to be compatible with existing Ambisonic decoders and provides a spherical harmonic signal generation method that is applicable to lower cost microphones.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.023 seconds)
