Apparatus for rapid measurement of spatial angular resolution of virtual sound-generating devices

A technology for generating equipment and space angles, applied in the field of virtual auditory space angle resolution, can solve problems such as complex device structure and low measurement efficiency, and achieve the effects of simplifying the process of adjusting angles, improving work efficiency, and reducing uncertain errors

Active Publication Date: 2020-03-06
SHANGHAI AVIATION ELECTRIC
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of complex device structure and low measurement efficiency in the prior art, and provide a new device for quickly measuring the spatial angular resolution of virtual sound generating equipment

Method used

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  • Apparatus for rapid measurement of spatial angular resolution of virtual sound-generating devices
  • Apparatus for rapid measurement of spatial angular resolution of virtual sound-generating devices

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] See figure 1 , shown in the figure is a reference diagram of a conventional spherical coordinate system for measuring the spatial angular resolution of a virtual sound generating device. Coordinate system definition: the loudspeaker orientation adopts a counterclockwise coordinate system, the azimuth angle 0°≤θ<360°, θ=0° on the horizontal plane is the front, the counterclockwise direction θ=90°, 180° and 270° are the left respectively, Directly behind and directly to the right, elevation angles -90°≤φ≤90°, -90°, 0° and +90° represent directly below, horizontal and directly above.

[0021] See figure 2 , shown in the figure is a device for measuring the angular resolution of a virtual sound source sounding device, including: a loudspeaker fixed grid support 1, a visual shielding mechanism 2, a speaker orientation adjustment mechanism 3, a lo...

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Abstract

The invention relates to a device for quickly measuring spatial angle resolution of virtual sound production equipment. The device is mainly composed of a fixing grid bracket, an orientation adjusting mechanism, a swivel chair mechanism, a visual shielding mechanism, a measurement orientation transmitter fixing device and an orientation indicating device. The device provided by the invention has the advantages that: the device can measure elevation angles of -90 degrees to 90 degrees of a virtual sound source, azimuth angles of 0-360 degrees of a full-space virtual sound source or the spatial angles of a certain number of real sound sources, can adjust and change the position of a loudspeaker according to demand to satisfy the requirements of different sound source tests, simplify the angle adjustment process, reduce uncertain errors caused by human factors, improve the working efficiency and can satisfy the requirements of tests and airborne engineering applications.

Description

technical field [0001] The invention relates to the field of angular resolution of virtual auditory space, in particular to a device for quickly measuring the spatial angular resolution of virtual sound source generating equipment. Background technique [0002] The human auditory system can locate the sound source of the sound through the propagation of the sound, and judge its spatial orientation. At present, the virtual sound source generation equipment utilizes the positioning ability of the auditory system to replay a virtual sound source similar to the real sound, so that the virtual sound source played through the headset has spatial information, thereby achieving "auditory position identification" However, how to evaluate the spatial angular resolution of the virtual sound source simulated by the virtual sound source generating device has always been a difficult problem in this field. Contents of the invention [0003] The purpose of the present invention is to sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
CPCH04R29/00
Inventor 马立超陈慧李春晖
Owner SHANGHAI AVIATION ELECTRIC
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