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Novel intelligent automatic audio mixing method and device thereof

An intelligent and automatic technology, applied in the direction of speaker distribution signal, etc., can solve the problems of inconvenient on-site installation, increase of cable faults, cable length, etc., to achieve the effect of simple cable connection, easy installation and maintenance

Inactive Publication Date: 2010-06-02
天津金雅佳乐器有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the more microphones there are, the more microphone cables there are. As a result, the cables are long and numerous, which brings great inconvenience to on-site installation.
Especially in the project wiring and construction of large conference rooms, the more cables, the greater the workload, and the higher the requirements, the more cumbersome the work
In addition, the possibility of faults in long and numerous cables increases; once a fault occurs, it is also troublesome to troubleshoot

Method used

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  • Novel intelligent automatic audio mixing method and device thereof
  • Novel intelligent automatic audio mixing method and device thereof
  • Novel intelligent automatic audio mixing method and device thereof

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Embodiment 1

[0032] Embodiment 1: (the device of analog digital hybrid transmission mode)

[0033] The novel intelligent automatic mixing device of the analog digital hybrid transmission mode mainly includes two parts: a microphone manager and an intelligent automatic mixing host connected thereto: the microphone manager (see attached Image 6) includes a microprocessor A, a signal acquisition circuit, and an analog switch control circuit; the signal acquisition circuit is used to receive an audio signal from a microphone and convert it into a digital signal; the microprocessor A has a data storage module , a data comparison module connected thereto, a data selection module connected to the data storage module and the data comparison module respectively, and a data distribution module connected to the data storage module, the data comparison module and the data selection module respectively, for converting the transformed digital After the signal is compared with the noise gate threshold l...

Embodiment 2

[0068] Embodiment 2: (full digital transmission mode)

[0069] The novel intelligent automatic sound mixing device of all-digital transmission mode is characterized in that: it mainly includes a microphone manager (see attached Figure 8 ) and the Intelligent Automixer (see attached Figure 9 ) Two parts: the microphone manager includes a microprocessor C and a sensitivity adjustment circuit B connected to the microprocessor C, which is used to adjust the size of the analog signal volume controlled by the microphone manager according to the preset value of the programmable amplifier , so as to match the signal size of other microphones; one end is connected to the output gain adjustment circuit B connected to the microprocessor C, which is used to receive the output signal of the sensitivity adjustment circuit, and adjust the individual according to the preset value of the programmable amplifier. The size of the analog signal volume of the microphone manager; the signal acqui...

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Abstract

The invention provides a novel intelligent automatic audio mixing method mainly comprising the following steps: 1) receiving an audio signal from a microphone; amplifying the audio signal; comparing the amplified audio signal with the noise gate threshold level in a comparator 1, wherein only the signal higher than the noise gate threshold level can reach a comparator 2 and the method is characterized by separating all the hardware components in step 1) from the original intelligent automatic audio mixer and arranging the components as independent units; comparing the audio signal with an output signal from the comparator 2 of a previous microphone manager, and outputting to a microphone manager of the next level; carrying out such steps of transmission, comparison and changing one by one; and finally feeding the signal having a maximum value obtained through the comparison of N microphones; and 2) receiving the audio signal having the maximum value from the microphone manager; amplifying the audio signal by the amplifier; outputting the audio signal to an amplifying device; and sending a control signal to the microphone manager by a controller, wherein the hardware components in the step are arranged as independent units.

Description

technical field [0001] The invention belongs to the field of sound reinforcement methods and equipment thereof, in particular to the field of sound reinforcement methods and equipment for language sound reinforcement. Background technique [0002] At present, intelligent automatic sound mixing is often used in language sound reinforcement systems. Its composition: intelligent automatic mixer, microphone, microphone line. Usually each intelligent automatic mixer can be connected to 8 microphones, and multiple intelligent automatic mixers can be connected to hundreds of microphones. The working principle of the existing intelligent automatic mixer is (see attached figure 1 ): The audio signal from the microphone is compared with the threshold level of the noise gate in the comparator. When it is greater than the threshold level of the noise gate, the signal can reach the input terminal of the "maximum value comparator" (usually all eight channels are like this ); In the "ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/12
Inventor 叶晓钟谷丰彭明陈湘林孙洁
Owner 天津金雅佳乐器有限公司
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