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Method and system for rendering audio signals in a virtual reality environment

An audio signal and virtual reality technology, applied to stereo systems, electrical components, etc., can solve problems such as inability to deal with the translation changes of the listener's listening position and related degrees of freedom

Active Publication Date: 2021-11-30
DOLBY INT AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such renderers typically cannot handle translational changes in the listener's listening position and associated degrees of freedom

Method used

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  • Method and system for rendering audio signals in a virtual reality environment
  • Method and system for rendering audio signals in a virtual reality environment
  • Method and system for rendering audio signals in a virtual reality environment

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Embodiment Construction

[0035] As mentioned above, this document is concerned with efficiently providing 6 degrees of freedom in a 3D (three-dimensional) audio environment. Figure 1a A block diagram of an example audio processing system 100 is shown. An acoustic environment 110 such as a stadium may include a variety of different audio sources 113 . Example audio sources 113 within a stadium are individual spectators, stadium speakers, players on the field, and the like. The acoustic environment 110 can be subdivided into different audio scenes 111 , 112 . For example, the first audio scene 111 may correspond to the home team support block, while the second audio scene 112 may correspond to the away team support block. Depending on where the listener is located within the audio environment, the listener will perceive either the audio source 113 from the first audio scene 111 or the audio source 113 from the second audio scene 112 .

[0036]The different audio sources 113 of the audio environment ...

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PUM

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Abstract

A method (910) for rendering an audio signal in a virtual reality rendering environment (180) is described. The method (910) includes presenting (911) a start of an audio source (311, 312, 313) from a start source position on a start sphere (114) around a listener's (181) start listening position (301). start audio signal. Furthermore, the method (910) includes determining (912) the movement of the listener (181) from the starting listening position (301) to the destination listening position (302). Additionally, the method (910) includes determining (913) a destination source location of the audio source (311, 312, 313) on a destination sphere (114) around the destination listening location (302) based on the starting source location, And determining (914) a destination audio signal for an audio source (311, 312, 313) based on the starting audio signal. Furthermore, the method (910) includes rendering (915) a destination audio signal of an audio source (311, 312, 313) from a destination source location on a destination sphere (114) around the destination listening location (302).

Description

[0001] Cross References to Related Applications [0002] This application claims priority to the following priority applications: U.S. Provisional Application 62 / 599,848 filed December 18, 2017 (Ref: D17086USP1) and European Patent Application 17208087.1 filed December 18, 2017 (Ref: D17086EP), all The said priority application is hereby incorporated by reference. technical field [0003] This document is concerned with the efficient and consistent handling of transitions between auditory viewports and / or listening positions in virtual reality (VR) rendering environments. Background technique [0004] Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR) applications are rapidly evolving to include increasingly sophisticated sound models of sound sources and scenes that can be enjoyed from different viewpoints / perspectives or listening positions. Two different classes of flexible audio representations can eg be used for VR applications: sound field representa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S7/00
CPCH04S7/303H04S2400/11H04S2400/01H04S3/008H04S7/302H04S2400/13
Inventor 利昂·特连蒂夫克里斯托弗·费尔施丹尼尔·费希尔
Owner DOLBY INT AB