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A test method and test system for audio activation sound pressure of intercom terminal

A technology of intercom terminal and test method, which is applied in the direction of two-way line system station, transmission system, transmission monitoring, etc., to achieve accurate and reliable test results

Active Publication Date: 2022-04-26
THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing test standards, the audio test of the intercom terminal only focuses on the overall loudness evaluation system, the overall sensitivity / frequency characteristics, audio distortion, channel signal-to-noise ratio, sidetone masking evaluation value, idle channel noise, ringing sound pressure There is no relevant standard formulation and corresponding normative test standard for the activation sound pressure, which is undoubtedly a lack, and there is an urgent need for a method for testing the audio activation sound pressure of the intercom terminal

Method used

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  • A test method and test system for audio activation sound pressure of intercom terminal

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Embodiment Construction

[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0049] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0050] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0051] In view of the above-mentioned problems existing in the prior art, a method for testing the audio activat...

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Abstract

The invention discloses a test method and a test system for audio activation sound pressure of an intercom terminal. The test system specifically includes an audio signal generator, a simulated mouth, a test intercom terminal system, a sound transmitting mouth and an audio analyzer; the test method passes the analysis The integrity of the test audio output by the remote intercom terminal, so as to determine the corresponding activation sound pressure of the intercom terminal. This test method is simple and convenient to implement, and the test results are accurate and reliable.

Description

technical field [0001] The invention relates to the field of intercom terminal testing, in particular to a test method and a test system for audio activation sound pressure of an intercom terminal. Background technique [0002] In the test link of the intercom terminal system, the activation sound pressure is a relatively important indicator. It can be used as one of the standards for judging the quality of the intercom terminal product by measuring the lowest sound pressure level that the intercom terminal can be activated. Terminal product design and production processing are of great significance. [0003] In the existing test standards, the audio test of the intercom terminal only focuses on the overall loudness evaluation system, the overall sensitivity / frequency characteristics, audio distortion, channel signal-to-noise ratio, sidetone masking evaluation value, idle channel noise, ringing sound pressure There is no relevant standard formulation and corresponding norma...

Claims

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Application Information

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IPC IPC(8): H04B17/00H04B17/391H04Q5/24
CPCH04B17/0085H04B17/3912H04Q5/24
Inventor 戎玲王丽娟游寒旭杨竹莹
Owner THE THIRD RES INST OF MIN OF PUBLIC SECURITY
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