Device and method for measuring audio call quality of communication terminal in blowing state

A communication terminal, audio call technology, applied in the direction of telephone communication, electrical components, branch equipment, etc., can solve problems such as inability to be accurate and objective, time-consuming and labor-intensive, etc.

Inactive Publication Date: 2012-09-19
南京声准科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If objective measurement cannot be done, only human-made subjective evaluation can be done, and different people will get different results, which cannot be accurate and objective, and it is also time-consuming and labor-intensive

Method used

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  • Device and method for measuring audio call quality of communication terminal in blowing state
  • Device and method for measuring audio call quality of communication terminal in blowing state
  • Device and method for measuring audio call quality of communication terminal in blowing state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 Shown:

[0027] The measurement device for the communication audio quality of the communication terminal in the wind blowing state is mainly composed of an electric fan, an artificial head, a wireless comprehensive tester and an antenna, a terminal to be tested, a front-end (hardware) and a back-end computer; the terminal to be tested is set on the artificial head The artificial mouth is set on the artificial head; the computer is connected to the front end; the front end includes a sound card, signal acquisition, and control components; Above; the speed of the electric fan is controlled by the computer, or through the front end or directly connected; the terminal to be tested is connected to the wireless comprehensive tester through a cable or an antenna (wireless).

[0028] Description of the test process:

[0029] Place the electric fan at a certain distance from the artificial head, such as 80 cm. The terminal to be tested, in this example, the mo...

Embodiment 2

[0042] Such as figure 2 as shown,

[0043] The setting and testing process is the same as above, the difference is:

[0044] The artificial head is connected to the turntable (the circle in the figure), and the computer controls the rotation of the turntable to measure the call quality of the terminal under test under various wind blowing conditions. That is, after the measurement of the call audio quality in this wind blowing direction is completed, the computer controls the rotation of the turntable, so that the artificial head and the terminal to be tested on it turn to another angle, and the test is repeated until 360 degrees are rotated; each time The rotation angle is a preset degree, or rotate continuously at a certain speed for continuous testing.

[0045] The way of placing and rotating the turntable is not limited to the above examples, and there may be other forms.

Embodiment 3

[0047] Such as image 3 Shown:

[0048] The setting and testing process is the same as above, the difference is:

[0049] The computer is directly connected to the electric fan, and the computer is directly connected to the turntable.

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Abstract

The invention relates to a device and a method for measuring the audio call quality of a communication terminal in a blowing state. A front end is connected with a computer which is connected with an electric fan, and is connected with a terminal to be measured through a cable or radio. The method comprises the following steps that: a signal of the terminal to be measured is connected with a signal acquisition part; the electric fan is a certain distance away from the terminal to be measured; the computer controls the rotating speed of the electric fan; the computer plays a near-end signal through an artificial mouth; the signal acquisition part acquires the signal of the terminal to be measured, and transmits the acquired signal of the terminal to be measured to the computer; and the computer performs analysis and computation on the signal, thereby measuring the audio call quality of the terminal to be measured. The shortcoming that only reduction in the influence of wind sound on an audio call of the communication terminal such as a mobile phone is taken into account in the conventional method for manually estimating the audio call quality in an actual outdoor blowing state is overcome. The measurement method is accurate and objective, and a standard is provided.

Description

technical field [0001] The invention relates to the field of audio measurement of communication terminals, in particular to an audio call measurement device and method in a wind blowing state of a communication terminal. technical background [0002] Calls with communication terminals such as mobile phones often encounter the problem of wind blowing and affecting call quality in outdoor environments. [0003] Prior to the present invention, the prior art mainly focused on how to reduce the influence of wind noise on audio calls of communication terminals such as mobile phones in a wind blowing state. However, how to detect the influence of wind blowing on a communication terminal is an important task, and the audio quality of a communication terminal call is also an important indicator in mobile communication. If objective measurement cannot be performed, only human-made subjective evaluation can be done, and different people will get different results, which cannot be accu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/24
Inventor 张铭庄战平
Owner 南京声准科技有限公司
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