A method and equipment for automatically adjusting delay of a loudspeaker

Abstract

The invention provides a method and equipment for automatically adjusting delay parameters of loudspeakers, and the method comprises the steps: receiving an audio signal which is modulated by a test pulse and is sent by any indoor loudspeaker to be tested; Carrying out convolution operation on the received audio signal and a test pulse signal at a receiving position by taking the time when the loudspeaker sends the audio signal as initial test time to obtain relative delay when the loudspeaker arrives at the receiving position; Calculating a delay parameter corresponding to each loudspeaker tobe tested according to the relative delay corresponding to all the loudspeakers in the room to be tested; And carrying out delay adjustment on the loudspeaker corresponding to the delay parameter according to the delay parameter. According to the scheme, the problem of delay adjustment of the large-scale indoor loudspeaker is solved, and the technical effects of saving the labor cost and the timecost of delay adjustment and improving the delay adjustment precision can be achieved.

Description

technical field [0001] The invention relates to the field of voice signal processing, in particular to a method and equipment for automatic adjustment of speaker delay. Background technique [0002] In large indoor places such as theaters, conference rooms, stages and KTV large private rooms, after the completion of the new project construction, due to the large indoor places, there are often multiple speakers placed far away from each other, and the listening positions are different, resulting in multiple There are different delays in the sound information arriving at the listening position after the loudspeakers sound at the same time, which will not only cause a phase deviation, resulting in a decrease in the intensity of the sound information, but also cause a decrease in the clarity of the sound information due to the superposition of different delays, which is extremely Greatly reduce the listening effect and user experience. [0003] Under normal circumstances, engin...

AI Technical Summary

Problems solved by technology

The manual measurement method not only has low measurement accuracy, but also requires engineers to calculate the delay by themselves, which has a low degree of automation, low efficiency, and low delay accuracy.

[0004] At present, in view of the above problems, a technical solution that can effectively solve the problem has not been proposed.

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