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Holographic audio rendering control method

A control method and audio technology, applied in the field of holographic audio rendering control, can solve the problems of difficult operation, poor application prospect, and unintuitiveness for ordinary users.

Inactive Publication Date: 2017-05-10
BEIJING SAIBIN TECH
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AI Technical Summary

Problems solved by technology

as attached figure 1 As shown, the existing virtual sound source rendering control method generally displays the spatial coordinate system through the screen, and the user places the virtual sound source in the spatial coordinate system or sets the motion trajectory of the sound source through mouse manipulation. It is not intuitive enough for users, the operation is difficult, and the application prospect is not good

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Embodiment Construction

[0013] The holographic audio rendering control method of the present invention will be described in detail with reference to the accompanying drawings. as attached figure 2 As shown, for the case of binaural signal playback (including earphone playback and speaker playback), the first step is to provide a touch device 1, which can be a sphere, an ellipsoid, a cube, a cuboid or other three-dimensional shapes , can be specifically configured according to the desired virtual sound field situation; the touch device 1 includes a touch surface 2, which has the same shape as the three-dimensional shape of the touch device 1, and the touch surface 2 is used to sense the touch position of the user's hand, further The touch surface 2 can sense the pressure pressed by the user's hand at the same time, or a special pressure sensor 3 is arranged below the touch surface 2, and the pressure sensor 3 is used to sense the pressure exerted by the user's hand on the touch surface 2. The second...

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Abstract

The invention presents a holographic audio rendering control method. A touch control device (1) is used in the method. The method comprises the following steps: the direction of a touch point is determined according to the touch position of a hand of a user sensed by a touch surface (2) of the touch control device (1), namely, the direction of a virtual sound source is determined; the distance from a sound source in a corresponding virtual sound field is determined according to the pressure of the user hand sensed by the touch surface (2); a dry signal is spatially convolved according to the determined direction of and distance from the virtual sound source to get a rendered virtual sound source signal; and the signal is fed to a headphone of a listener or a speaker in front of the listener for playing, and the listener perceives the virtual sound source. The direction of the virtual sound source is controlled through multi-level touch control, so that holographic sound field rendering can be carried out on the virtual sound source conveniently and visually.

Description

technical field [0001] The invention belongs to the field of audio signal processing, in particular to a holographic audio rendering control method. Background technique [0002] With the continuous development of VR and AR technology, while pursuing visual immersion, it is also necessary to enhance the sense of auditory immersion; and virtual surround sound technology is an important supporting technology for auditory VR and AR. Rendering the virtual sound source and the motion trajectory of the virtual sound source to obtain a holographic audio signal, real-time monitoring or replaying the signal after recording can create a realistic sound field for the user. as attached figure 1 As shown, the existing virtual sound source rendering control method generally displays the spatial coordinate system through the screen, and the user places the virtual sound source in the spatial coordinate system or sets the motion trajectory of the sound source through mouse manipulation. I...

Claims

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Application Information

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IPC IPC(8): H04S5/00H04S7/00
CPCH04S5/005H04S7/30
Inventor 张德明
Owner BEIJING SAIBIN TECH
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