A method and equipment for automatically adjusting delay of a loudspeaker

An automatic adjustment, speaker technology, applied in stereo system, electrical components, etc., can solve the problems of low measurement accuracy, low delay accuracy, no technical solutions, etc., to save time and labor costs, improve accuracy The effect of saving adjustment time cost and labor cost

Active Publication Date: 2019-06-07
BEIJING THUNDERSTONE TECH CO LTD
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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,

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  • A method and equipment for automatically adjusting delay of a loudspeaker
  • A method and equipment for automatically adjusting delay of a loudspeaker
  • A method and equipment for automatically adjusting delay of a loudspeaker

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[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0045] In this specification, adjectives such as first and second can only be used to distinguish one element or action from another element or action, without requiring or implying any actual relationship or order. Where circumstances permit, the reference element or component or step (etc.) should not be interpreted as being limited to only one of the element, component, or step, but may be one or more of the element, component, or step...

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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...

Claims

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Application Information

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IPC IPC(8): H04S7/00
Inventor 宋冬梅武剑王宏
Owner BEIJING THUNDERSTONE TECH CO LTD
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