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Calibration method of stage, film and television professional audio system

A technology of sound system and calibration method, applied in electrical components and other directions, can solve the problems of difficult to predict speakers, inability to guarantee acoustic effects, large time workload, etc., to achieve satisfactory system sound effects, simplify the difficulty of debugging and calibration, and reduce workload. Effect

Active Publication Date: 2016-08-10
GUANGZHOU LEAFUN CULTURE SCI & TECH
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  • Summary
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  • 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, audio system debugging and calibration is almost an impossible task
[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 sound 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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  • Calibration method of stage, film and television professional audio system
  • Calibration method of stage, film and television professional audio system
  • Calibration method of stage, film and television professional audio system

Examples

Experimental program
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Effect test

Embodiment 1

[0045] The sound system of the method for calibrating a professional sound system for a stage or film and television in this embodiment includes a plurality of active speakers, and this embodiment adopts the active speakers as described below.

[0046] Such as figure 1 As shown, the active sound box 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 be composed of a or multiple 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 .

[0047] 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 pow...

Embodiment 2

[0118] The difference between this embodiment and Embodiment 1 is that in the step S43: if the entity DSP data corresponding to the virtual DSP data includes speaker layer DSP parameters and array layer DSP parameters, then according to the modified virtual DSP data, the corresponding The microprocessor of the active speaker sends a control signal for modifying the corresponding entity DSP data, and the microprocessor modifies the corresponding DSP parameters in the corresponding entity DSP data according to the DSP parameters in the virtual DSP data included in the control signal;

[0119] If the physical DSP data corresponding to the virtual DSP data only contains the DSP parameters of the speaker layer, a new DSP parameter is obtained by superimposing and calculating the DSP parameters of each layer of the virtual DSP data, and then the modification is sent to the microprocessor corresponding to the active speaker Corresponding to the control signal of the physical DSP data,...

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Abstract

The invention relates to a sound box control technology, in particular to a calibration method for a stage, film and television professional audio system. This method solves the multi-layer adjustable problem at the system level by using active speakers with array layer DSP parameters (specifically speakers with frequency division above 2), and introducing speaker models to virtualize multi-layer DSP parameters. Models to achieve synchronous adjustment of each speaker model of the array group. All in all, this technology can not only simplify the difficulty of audio system debugging and calibration, reduce the workload, but also ensure better sound effects during system debugging.

Description

technical field [0001] The invention relates to a sound box control technology, in particular to a calibration method for a stage, film and television professional audio 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 sound 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 sound system, and adjust the digital signal processor parameters of the relevant speakers ...

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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