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Active sound box and speaker system calibration method

A speaker and sound box technology, applied in electrical components and other directions, can solve the problems of inability to guarantee the acoustic effect, large time workload, and difficulty in predicting the sound box, etc., to optimize the overall acoustic effect, and reduce the difficulty and workload.

Active Publication Date: 2012-11-14
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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  • Active sound box and speaker system calibration method
  • Active sound box and speaker system calibration method
  • Active sound box 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 of this 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, each power amplifier unit 13 is connected with a matching speaker unit 14, and the speaker unit 14 Can consist 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 of physical DSP data is not li...

Embodiment 2

[0078] 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.

[0079] 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

[0083] 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 sound box control technology, in particular to an active sound box and a speaker system calibration method. The active sound box comprises a signal input unit, a digital signal processor, a plurality of power amplifier units and a plurality of speaker units, wherein each power amplifier unit is connected with the matching speaker unit; array layer DSP (digital signal processor) parameters are set in the digital signal processor to simplify the work load for debugging and calibrating the speaker system so as to ensure the debugging result of the speaker system. The calibration method is executed for the speaker system consisting of the active sound boxes, and can simplify the complexity degree and the work load for system debugging by synchronously controlling the plurality of active sound boxes through the array layer DSP parameters without precisely debugging each active sound box by the conventional method, thereby greatly improving the debugging and calibration efficiency.

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 ...

Claims

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Application Information

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