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Active speaker with built-in dsp and speaker system calibration method

A speaker and sound box technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as difficulty in predicting sound boxes and inability to guarantee acoustic effects, reducing difficulty and workload, and optimizing the overall acoustic effect.

Active Publication Date: 2016-09-28
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 the 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 and judge that 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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  • Active speaker with built-in dsp and speaker system calibration method
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  • Active speaker with built-in dsp and speaker system calibration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the active sound box with built-in DSP of the present embodiment includes a signal input unit 11, a digital signal processor 12, a plurality of power amplifier units 13 and a plurality of speaker units 14, and each power amplifier unit 13 is connected with a matching speaker unit 14 , the speaker unit 14 may be composed of one or more speakers. 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 .

[0042] Such as figure 2 As shown, the digital signal processor 12 is provided with a data storage module 124, and the data storage module 124 stores a group of input processing parameters and multiple groups of output processing parameters corresponding to each power amplifier unit 13, each group of output processing parameters includes a or multiple DSP parameters.

[0043] The set of input processing parameters includes multiple physical DSP data, and the type ...

Embodiment 2

[0096] The difference between this embodiment and Embodiment 1 is that each entity DSP data contained in the input processing parameters of the active speaker of this embodiment includes a speaker layer DSP parameter and an array layer DSP parameter, and a 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.

[0097] 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, the data of the system layer DSP parameters are shared by each speaker member of the same system group. If a system layer DSP parameter of a certain speaker member in the system group is modified, the corresponding system layer DSP parameters of other speaker members i...

Embodiment 3

[0113] This embodiment is a speaker system calibration method, the speaker system includes a plurality of active speakers, the speaker system is provided with one or more array groups, and / or one or more system groups, each array group includes one or more Multiple active loudspeakers, each system group includes one or more active loudspeakers. The active speaker is the active speaker described in the second embodiment. Such as Figure 5 As shown, the loudspeaker system calibration method of this embodiment includes the following steps:

[0114] Step S10: start;

[0115] Step S20: If you choose to modify the speaker layer DSP parameters of the input processing parameters, then perform step S21; if you choose to modify the array layer DSP parameters of the input processing parameters, then perform step S22; if you choose to modify the system layer DSP parameters of the input processing parameters, then Execute step S23; if you choose to modify the output processing parameter...

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Abstract

The invention relates to the speaker control technology, in particular to an active speaker with a DSP arranged inside and a speaker system correction method. The active speaker comprises a signal input unit, a digital signal processer, a plurality of power amplifier units and a plurality of speaker units. Each of the power amplifier units is connected with one matched speaker unit, and the digital signal processer is provided with array-layer DSP parameters, hence, the work amount of debugging and correction of the speaker system is reduced, and debugging results of the speaker system are guaranteed. The correction method is implemented designed at the speaker system composed of the active speaker and abandons the traditional way in debugging each active speaker accurately. A plurality of the active speakers are controlled synchronously through the array-layer DSP parameters, complexity and work amount of system debugging are reduced, and the work efficiency of debugging and correction is enhance greatly.

Description

technical field [0001] The invention relates to a sound box control technology, in particular to an active sound box with a built-in DSP and a method for calibrating the 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 method for the speaker system composed of active speakers is 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00G05B19/042
Inventor 李志雄邓俊曦
Owner GUANGZHOU LEAFUN CULTURE SCI & TECH
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