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Automatic loudspeaker frequency response equating regulation system and method

A frequency response, speaker technology, applied in the field of chemical adjustment, can solve the problems of lengthy test procedures, ineffective improvement, waste of manpower and time, etc.

Inactive Publication Date: 2006-09-13
吴艳红 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when such operators perform equalization tuning (equalization tuning) in various frequency ranges to the speakers installed on such electronic devices, they still test the output sound effects in each sampling frequency range by testing instruments, and then The calculated gain value that should be adjusted is input into the digital equalization circuit, so that the digital equalization circuit can make the speaker produce the most ideal output frequency response. This method does not effectively improve the lengthy test procedure, and in the When the electronic device is replaced with the speaker, it is still necessary to repeat the test procedure again, resulting in unnecessary waste of manpower and time

Method used

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  • Automatic loudspeaker frequency response equating regulation system and method
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  • Automatic loudspeaker frequency response equating regulation system and method

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Embodiment Construction

[0020] The present invention is described in detail below in conjunction with accompanying drawing:

[0021] see first figure 1 , after installing a loudspeaker 10 in an electronic device, use a central processing unit 20 set in the electronic device to simulate and generate a standard sound source file in the range of an auditory bandwidth (20Hz~20KHz), and transfer the The sound source file is sent to a sound effect control circuit 30, and the sound effect control circuit 30 generates a standard sound source signal corresponding to the frequency range according to the data of the sound source file, and sends the sound source signal to a digital device set in the electronic device. Equalizer 40, after receiving the audio source signal, the digital equalizer 40 performs initial compensation on the audio source signal according to an initial gain value preset therein, and then outputs the audio source signal through the speaker 10 After a microphone 50 installed in the electro...

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Abstract

The present invention discloses one kind automatic loudspeaker frequency response equating regulation system and method. The system includes one loudspeaker, one CPU, one sound effect controlling circuit, one digital equating device and one microphone. The CPU produces one standard sound source signal via the sound effect controlling circuit and the digital equating device receives the signal and outputs it via the loudspeaker. The microphone receives the loudspeaker output and its output is returned via the sound effect controlling circuit to the CPU, where the received sound signal is compared with ideal frequency response data to calculate one set of equating gain regulating values stored in the digital equating device. The automatic frequency response regulation results in optimized frequency response.

Description

technical field [0001] The present invention relates to the adjustment of the frequency response of the speaker, especially a system and method for automatically adjusting the frequency response equalization of the speaker; when a speaker is installed in an electronic device, a central processing unit set in the electronic device A set of equalizing gain values ​​can be calculated in real time and stored in a digital equalizer, so that the equalizer can automatically adjust the frequency response of the speaker according to the gain values ​​in the future. Background technique [0002] In recent decades, due to the rapid development of the technology industry, the pace of people's life and work has been accelerated along with the fierce market competition. The convenient and fast transportation facilities have also gradually expanded the area for industrial and commercial development. People's daily busy schedule , in order to improve work efficiency and improve the quality ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/20
Inventor 蔡国良
Owner 吴艳红