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A kind of active sound box and loudspeaker system calibration method

A loudspeaker and sound box technology, applied in electrical components and other directions, can solve problems such as large time workload, inability to guarantee acoustic effects, and difficulty in predicting sound boxes, so as to reduce difficulty and workload and optimize the overall acoustic effect.

Active Publication Date: 2016-08-10
GUANGZHOU LEAFUN CULTURE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Originally, the workload of adjusting the speakers one by one is already very large, but now it needs to be repeated many times (the number of times is unknown, the time spent and the workload required are very huge
Especially for non-professionals, it is almost impossible to debug and correct the speaker system
[0006] (2) Even if the system has been adjusted and corrected many times, it still cannot guarantee better acoustic effects
Even if engineers adjust each speaker one by one, since the speaker system is a systematic project, each speaker will affect each other, and when the engineer adjusts each speaker, it is difficult to predict how the adjusted speaker will affect other speakers. How the speaker will affect it (or how other speakers will affect this speaker), so it can only be estimated empirically

Method used

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  • A kind of active sound box and loudspeaker system calibration method
  • A kind of active sound box and loudspeaker system calibration method
  • A kind of active sound box and loudspeaker system calibration method

Examples

Experimental program
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Embodiment 1

[0036] Such as figure 1 As shown, the active speaker in this embodiment includes a signal input unit 11 , a digital signal processor 12 , a power amplifier unit 13 and a speaker unit 14 . The signal input unit 11 is used to receive the audio signal input from the speaker and transmit it to the digital signal processor 12 .

[0037] Such as figure 2As shown, the digital signal processor 12 is provided with a data storage module 124, and a set of input processing parameters is stored in the data storage module 124. The set of input processing parameters includes a plurality of entity DSP data, and the types of entity DSP data are not limited. The input processing parameters may include multiple physical DSP data of the same type, or multiple different physical DSP data. Each entity DSP data contains a speaker layer DSP parameter corresponding to the type of the entity DSP data, and the speaker layer DSP parameter is a DSP parameter set for the active speaker; and at least one...

Embodiment 2

[0059] The difference between this embodiment and Embodiment 1 is that in the active speaker of this embodiment, among the various entity DSP data included in the input processing parameters, the entity DSP data that contains the array layer DSP parameters also includes a corresponding speaker layer DSP parameter System layer DSP parameters of the same type, the system layer DSP parameters are set for each speaker member of the system group to which the active speaker belongs, and the system group includes one or more active speakers.

[0060] The DSP parameters (which may be any type of DSP parameters) used to simultaneously adjust the characteristics of the speaker members of the system group are called system layer DSP parameters, that is, each speaker member of the same system group shares the data of the system layer DSP parameters. If a system layer DSP parameter of a certain speaker member in the system group is modified, the corresponding system layer DSP parameters of ...

Embodiment 3

[0065] The difference between this embodiment and Embodiment 1 is that: in the entity DSP data included in the input processing parameters of the active speaker in this embodiment, at least one entity DSP data also includes a system layer DSP with the same type of speaker layer DSP parameter parameter, the system layer DSP parameter is set for each speaker member of the system group to which the active speaker belongs, and the system group includes one or more active speakers.

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Abstract

The invention relates to a sound box control technology, in particular to an active sound box and a method for calibrating a speaker system. The active speaker includes a signal input unit, a digital signal processor, a power amplifier unit, and a speaker unit. The digital signal processor is equipped with array layer DSP parameters, so it can simplify the debugging and calibration workload of the speaker system and ensure the debugging results of the speaker system. . This correction method is implemented for the speaker system composed of the above-mentioned active speakers. This correction method abandons the traditional method of accurately debugging each active speaker, and synchronously controls multiple active speakers through the array layer DSP parameters, which simplifies the system. The complexity and workload of debugging have greatly improved the work efficiency of debugging and correction.

Description

technical field [0001] The invention relates to a sound box control technology, in particular to an active sound box and a method for calibrating a speaker system. Background technique [0002] Speakers with built-in digital signal processors (DSP) and power amplifiers (also known as active speakers) can perform operations such as EQ adjustment, delay, limiter, and frequency division on the input audio signal through the digital signal processor, so that the speakers can achieve the best performance. working status. [0003] At present, the conventional adjustment methods for the speaker system composed of active speakers are as follows: (1) First adjust the input processing parameters and output processing parameters of the digital signal processor of a single speaker (speakers with frequency division above two), such as EQ, delay, limiter, etc. (2) Test the effect of the speaker system, and adjust the digital signal processor parameters of the relevant speakers based on e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
Inventor 李志雄邓俊曦
Owner GUANGZHOU LEAFUN CULTURE SCI & TECH
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