Unlock instant, AI-driven research and patent intelligence for your innovation.

Immersive audio rendering method and system

An immersive and audio technology, applied in stereo system, voice analysis, electrical components, etc., can solve the problems of missing high-frequency clues, affecting the accuracy of listener positioning, rendering mobile sound source jumps, etc., to achieve the effect of precise positioning

Active Publication Date: 2020-02-04
BEIJING TWIRLING IN TIME CO LTD +1
View PDF12 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing immersive audio processing methods cannot meet the needs of small and medium-sized venues for on-site immersive production and playback, and HOA uses an intermediate format to reconstruct a 3D sound field, but limited by the order of use, it may bring The lack of high-frequency cues affects the accuracy of the listener's positioning; while VBAP will jump when rendering moving sound sources, resulting in incoherent spatial sound effects

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Immersive audio rendering method and system
  • Immersive audio rendering method and system
  • Immersive audio rendering method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0042] This application provides an immersive audio rendering method, please refer to figure 1 , the method includes:

[0043] S1: Acquire the HOA-based first gain and the VBAP-based second gain of each audio channel for multiple channels of audio played by multiple speakers to be mixed.

[0044] S2: Configure ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention relates to an immersive audio rendering method and system. The method comprises the following steps of acquiring a first gain based on HOA and a second gain based on VBAP of each path of audio aiming at multiple paths of to-be-mixed audio played by a plurality of loudspeakers; configuring mixing weight for each path of audio, and determining weight coefficients of the first gain and the second gain according to the mixing weight; and determining the mixing gain of each path of audio according to the first gain, the second gain and the respective weight coefficient, and completing the audio mixing processing of the multiple paths of audio through the mixing gain. According to the technical scheme provided by the application, the position of a sound source canbe more accurately positioned, thereby meeting the requirements of small and medium-sized venues for on-site immersive manufacturing and playing.

Description

technical field [0001] The present application relates to the technical field of audio data processing, in particular to an immersive audio rendering method and system. Background technique [0002] In recent years, with the continuous development of high-definition video, from 2K to 4K, even 8K, and with the development of virtual reality VR and AR, people's hearing requirements for audio have also increased. People are no longer satisfied with stereo, 5.1, 7.1 and other sound effects that have been popular for many years, and began to pursue more immersive and realistic 3D sound effects or immersive sound effects. Currently, immersive audio processing is mainly based on technologies such as channel-based audio (CBA), object-based audio (OBA) and ambisonics scene-based audio (SBA). Technologies such as decoding, packing and rendering. [0003] Specifically, Ambisonics uses spherical harmonics to record the sound field and drive the speakers. It has strict speaker arrangem...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/008H04S3/00H04S7/00
CPCG10L19/008H04S7/30H04S3/008H04S2420/01
Inventor 孙学京张兴涛许春生
Owner BEIJING TWIRLING IN TIME CO LTD