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A multi-angle 3D sound playback method and device

A multi-angle, 3D technology, applied in stereo communication headsets and other directions, can solve the problems of lack of signal acquisition terminal association, a large number of speaker units, complex system structure, etc., to achieve the effect of a complete 3D sound effect experience

Active Publication Date: 2018-09-04
光枢(海口)投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] 3D sound playback technology has always been a hot spot that people pay attention to. Wave field synthesis technology (Wave field synthesis, WFS) [A.J.Berkhout, D.Vries and P.Voge, Acoustic control by wave fieldsynthesis, J.Acoust.Soc.Am., 93:2764-2778,1993] Theoretically, a perfect 3D sound playback effect can be obtained, but the obvious problem is that a large number of speaker units need to be used, and the system structure is very complicated
The existing headphone-based 3D playback technology only focuses on the realization of sound playback, and the sound source information used is generally two-channel stereo data or commercial multi-channel data (such as Dolby5.1), lacking the connection with the signal acquisition end

Method used

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  • A multi-angle 3D sound playback method and device
  • A multi-angle 3D sound playback method and device
  • A multi-angle 3D sound playback method and device

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Experimental program
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Embodiment 1

[0041] figure 1 The implementation flow of a multi-angle 3D sound playback method provided by the first embodiment of the present invention is shown, and the details are as follows:

[0042] In step S101, the location information of the user is collected in real time by a sensor.

[0043] In the specific implementation process, it is first necessary to collect the user's orientation information. The collection of orientation information can be realized by the earphone with positioning function worn by the user. For example, the user's orientation information is collected through the built-in sensor of the earphone. The specific sensor may be a gyroscope, and the location information of the user is collected in real time through the sensor.

[0044] In step S102, the microphone array is synchronized according to the user orientation information collected in real time.

[0045]In the specific implementation process, after the user's real-time orientation information is collect...

Embodiment 2

[0057] image 3 A structural diagram of a multi-angle 3D sound playback device provided by the second embodiment of the present invention is shown, and for convenience of description, only parts related to the embodiment of the present invention are shown.

[0058] The collection unit 31 is configured to collect the location information of the user in real time through the sensor.

[0059] In the specific implementation process, the collection unit is used to collect the user's orientation information. The collection of the orientation information can be realized by the earphone with the positioning function worn by the user. The specific sensor for the orientation information may be a gyroscope, and the orientation information of the user is collected in real time through the sensor.

[0060] The synchronization unit 32 is configured to synchronize the microphone array according to the user orientation information collected in real time.

[0061] In the specific implementat...

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Abstract

The invention is suitable for the field of sound processing, and provides a multi-angle 3D sound playback method and device. The method comprises the following steps: acquiring azimuth information of a user in real time through a sensor; synchronizing microphone arrays according to the azimuth information of the user acquired in real time; and calculating and synchronizing binaural 3D sounds of the user according to the synchronized sensor arrays. According to the multi-angle 3D sound playback method, the azimuth information of the user is acquired through the sensor, and meanwhile effective synthesis of binaural sounds of an earphone is realized by oriented acquisition functions of the microphone arrays through the real-time azimuth information of the user acquired by the earphone, so that sound information obtained by the user can be changed in real time along with the rotation of the head of the user, and real-time and complete 3D sound effect experience is achieved.

Description

technical field [0001] The invention belongs to the field of sound processing, and in particular relates to a multi-angle 3D sound playback method and device. Background technique [0002] 3D sound playback technology has always been a hot spot that people pay attention to. Wave field synthesis technology (Wave field synthesis, WFS) [A.J.Berkhout, D.Vries and P.Voge, Acoustic control by wave fieldsynthesis, J.Acoust.Soc.Am., 93:2764-2778,1993] theoretically can obtain a perfect 3D sound playback effect, but its significant problem is the need to use a large number of speaker units, the system structure is very complex. Other similar 3D sound playback technologies utilizing speaker arrays, such as Ambisonics [D.G.Malham and A.Myatt, 3-D soundspatialization using Ambisonics techniques, Computer Music J., 19(4):58-70,1995] and Dobly Atmos [G. Sergi, Knocking at the door of cinematic artifice: Dolby Atmos, challenges and opportunities, The New Soundtrack, 3(2): 107-121, 2013], ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R5/033
Inventor 卢晶易海军李斌
Owner 光枢(海口)投资有限公司
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