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Self detection and correction method for electroacoustic system

A calibration method, electro-acoustic technology, applied in the direction of electrical components, etc., can solve the problems of time-consuming and labor-intensive, expensive maintenance costs, increased production costs, etc.

Inactive Publication Date: 2011-09-28
FORTEMEDIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development and popularization of science and technology, communication equipment such as telephones have become necessary for every household. Due to their low price, most of them will be replaced directly if there is a fault. However, if high-priced products such as conference phones have poor reception or When there are problems such as noise, not only the maintenance cost is expensive, but the maintenance equipment also costs more than 10,000 yuan. Whether it is sent for repair or repaired by itself, the cost is not small, which makes the user feel overwhelmed
[0003] In the prior art, the internal circuits of these communication devices must be tested when they are semi-finished products, that is, before assembly, and then assembled into finished products after the test is completed. However, poor signal or interference, system instability, etc. sometimes occur during assembly Or after a period of use, if you want to test the finished product at this time, you need expensive external testing equipment, otherwise you have to disassemble the finished product to test its internal circuit, resulting in waste of cost
[0004] Furthermore, if the failure rate of a batch of finished products is too high during sampling inspection, the entire batch of finished products must be fully tested, that is, it is necessary to use expensive testing equipment or disassemble the finished products to test the internal circuit. It is time-consuming and labor-intensive, which may cause delays in the production line and increase production costs

Method used

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Embodiment Construction

[0025] The present invention provides a method for self-detection and correction of an electro-acoustic system, wherein the electro-acoustic system can be divided into figure 1 A one-to-one system of one speaker to one microphone shown, and figure 2 A one-to-many system of one loudspeaker to plural microphones is shown. In a one-to-one system, the detectable parameter items of the self-test module 10 include gain (Gain), sensitivity (Sensmvity), phase delay (Phasedelay) and frequency response (Frequency response); in a one-to-many system, the The parameter items detectable by the self-inspection module 10 include gain difference (Gain difference), sensitivity difference (Sensitivity difference), phase delay difference (Phase delay difference) and frequency response difference (Frequency response difference); the detection of gain parameters can maintain Program the linear relationship between the gain amplifier and the circuit, and make sure that its parameter values ​​are w...

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PUM

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Abstract

The invention provides a self detection adjustment method for electro acoustic system fit to any situation. Wherein, a self detection module build-in IC or DSP sends testing signal to be treated by a circuit element and transmitted by a audio sending device; at least one audio receiver takes over and sends the signal to connected circuit element for conversion into digital signal, then send back to self detection module for comparing the correlativity between send testing signal and back digital signal and optimizing the circuit parameter; then comes the next detection and adjustment for nextparameter; if can not adjust, it sends testing failure alarm.

Description

technical field [0001] The invention relates to a self-testing and correcting method of an electro-acoustic system, in particular to a method for self-testing and automatically adjusting the electro-acoustic system in any occasion. Background technique [0002] With the development and popularization of science and technology, communication equipment such as telephones have become necessary for every household. Due to their low price, most of them will be replaced directly if there is a fault. However, if high-priced products such as conference phones have poor reception or Noise and other problems, not only the maintenance cost is expensive, but the maintenance equipment also costs more than 10,000 yuan. Whether it is sent for repair or repaired by itself, the cost is not small, which makes the user feel that it is too much. [0003] In the prior art, the internal circuits of these communication devices must be tested when they are semi-finished products, that is, before as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R29/00
Inventor 黎一平白博仁
Owner FORTEMEDIA
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