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Active sound box with built-in DSP (digital signal processor) and speaker system calibration method

A loudspeaker and sound box technology, applied in frequency/direction characteristic devices, electrical components, etc., can solve problems such as large time workload, inability to guarantee acoustic effects, and difficulty in predicting sound boxes, reducing difficulty and workload, and optimizing overall acoustics effect of effect

Inactive 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 with built-in DSP (digital signal processor) and speaker system calibration method
  • Active sound box with built-in DSP (digital signal processor) and speaker system calibration method
  • Active sound box with built-in DSP (digital signal processor) and speaker system calibration method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like 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 .

[0038] like 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 and an array layer DSP parameter corresponding to the type of the entity DSP data, the speaker layer DSP parameter is the DSP parameter set for the active ...

Embodiment 2

[0068] 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.

[0069] 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 other speaker members in the s...

Embodiment 3

[0085] 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. like Figure 5 As shown, the loudspeaker system calibration method of this embodiment includes the following steps:

[0086] Step S10: start;

[0087] 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;

[0088] Step S21: modify the DSP parameters of the selec...

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Abstract

The invention relates to sound box control technology, in particular to an active sound box with a built-in DSP and a speaker system calibration method. The active sound box comprises a signal input unit, a digital signal processor, a power amplifier unit and a speaker unit, wherein array layer DSP 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 effect 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 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 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 relev...

Claims

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Application Information

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IPC IPC(8): H04R1/20H04R29/00
Inventor 李志雄邓俊曦
Owner GUANGZHOU LEAFUN CULTURE SCI & TECH
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