Multi-channel audio system capable of tracking user and equipment with multi-channel audio system

Abstract

The invention discloses a multi-channel audio system capable of tracking a user and equipment with the multi-channel audio system. The multi-channel audio system comprises multiple loudspeakers, an image sensor, a sound sensor and a controller; a predetermined first relative position is located between the image sensor and the sound sensor, and the controller comprises a loudspeaker position detection unit, a user position detection unit, a position fusion unit, a delay compensation calculating unit and a delay adjusting unit, wherein the loudspeaker position detection unit is used for determining second relative positions of the loudspeakers on the basis of predetermined audio signals which are detected by the sound sensor and come from the loudspeakers, the user position detection unit is used for determining a third relative position of the user on the basis of a user image detected by the image sensor, the position fusion unit is used for fusing the first relative position, the second relative positions and the third relative position to determine a fourth relative position of the user to the loudspeakers, the delay compensation calculating unit is used for calculating delay compensation values of the loudspeakers on the basis of the fourth relative position, and the delay adjusting unit is used for adjusting the phase positions of audio signals of the loudspeakers according to the delay compensation values.

Description

technical field [0001] The present invention relates generally to sound reproduction and, more particularly, to a multi-channel sound system that can track a user so as to provide the user with an optimal listening experience over time. Background technique [0002] A typical multi-channel audio system, including 2.0 system, 2.1 system, 5.1 system, 6.1 system, 7.1 system, etc., can use its multiple channels to provide users with stereo effects. However, in order to achieve the best listening effect, there are certain requirements for the placement of the sound system. [0003] Figure 1A showing the placement of a 2.0 or 2.1 sound system, Figure 1B Shows the placement of a 5.1 sound system. For 2.0 or 2.1 systems, such as Figure 1A As shown, the left channel speaker (or sound box) 101 , the right channel speaker 102 and the user 110 form an equilateral triangle, and the left channel speaker 101 and the right channel speaker 102 face the user 110 . Because the directivit...

AI Technical Summary

Problems solved by technology

First of all, the frequency division coding, diffraction, and synthesis processing of audio signals will inevitably affect fidelity, resulting in poor sound effects

In addition, although this solution can improve the sound effect of the area outside the emperor's seat to a certain extent, it still cannot achieve the same listening effect as the emperor's seat

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