CN102685289A - Device and method for measuring audio call quality of communication terminal in blowing state - Google Patents
Device and method for measuring audio call quality of communication terminal in blowing state Download PDFInfo
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- CN102685289A CN102685289A CN2012101424280A CN201210142428A CN102685289A CN 102685289 A CN102685289 A CN 102685289A CN 2012101424280 A CN2012101424280 A CN 2012101424280A CN 201210142428 A CN201210142428 A CN 201210142428A CN 102685289 A CN102685289 A CN 102685289A
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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
The present invention relates to communication terminal audio frequency field of measurement, particularly communication terminal wind state subaudio frequency conversation measurement mechanism and method.
Technical background
Run into wind with the conversation of communication terminals such as mobile phone through regular meeting under the environment out of doors and influence the problem of speech quality.
Before the present invention, prior art mainly is to concentrate under the wind state, how to reduce the influence of sound of the wind to communication terminal voice-frequency telephonies such as mobile phones.But how detecting wind is an important job to the influence of communication terminal, and communication terminal conversation audio quality also is the important indicator in the mobile communication.If can't carry out objective measurement, then can only do artificial subjective evaluation, and different people can draw different results, can't accomplish accurately with objective, and also waste time and energy.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, development communication terminal wind state subaudio frequency conversation automatic test approach.
Technical scheme of the present invention is:
Communication terminal wind state subaudio frequency conversation measurement mechanism, its major technique are characterised in that front end connects computer, and computer connects electric fan, and front end is through cable or dedicated radio link terminal to be measured.
Communication terminal wind state subaudio frequency conversation method of measurement, its major technique step is:
(1) signal at terminal to be measured is connected with the signals collecting parts of front end through cable or radio;
(2) electric fan is placed in distance a distance, terminal to be measured;
(3) computer control electric fan rotating speed;
(4) computer is play pre-designed near end signal through artificial mouth;
(5) the signals collecting parts are gathered terminal signaling to be measured in the front end;
(6) the front end terminal signaling to be measured that will collect is delivered to computer;
(7) computer carries out analytical calculation to this signal, thereby measures the conversation audio quality at terminal to be measured.
Advantage of the present invention and effect be to propose one effective, objective, the audio speech quality under the wind is measured exactly; Thereby the subjectivity of doing in actual open air artificial before having solved is assessed conversation audio frequency method for quality under the wind; Thereby it is accurate and objective to have guaranteed, and a standard is provided.
Other concrete advantages of the present invention and effect will continue explanation below.
Description of drawings
Fig. 1--general structure block diagram of the present invention.
Another general structure block diagram of Fig. 2--the present invention.
The third general structure block diagram of Fig. 3--the present invention.
Fig. 4--the general structure block diagram of the present invention terminal to be measured hands-free mode.
Fig. 5--test control flow sketch map among the present invention.
Fig. 6--the present invention is to the computational methods sketch map of voice-frequency telephony.
Embodiment
Technical thought of the present invention is:
Computer is through front end or directly control electric fan, makes its wind that produces certain air quantity/wind speed, blows to and treats the side communication terminal; Computer can controlled wind speed/air quantity variation, when blowing over to measure different wind speed/air quantity, terminal call audio quality to be measured.
Embodiment 1:
As shown in Figure 1:
Under the wind state, the converse measurement mechanism of audio quality of communication terminal mainly is made up of the computer of electric fan, dummy head, wireless comprehensive test instrument and antenna, terminal to be measured, front end (hardware) and rear end; Terminal to be measured is arranged on the dummy head; The last artificial mouth that is provided with of dummy head; Computer connects front end; Front end comprises sound card, signals collecting, control assembly; Front end connects electric fan, wireless comprehensive test instrument, artificial mouth, terminal to be measured respectively and comprises mobile phone etc.; Terminal to be measured is placed on the dummy head; Electric fan is by its rotating speed of computer control, or through front end or directly connection; Terminal to be measured connects wireless comprehensive test instrument through cable or antenna (wireless).
The test process explanation:
Electric fan is positioned over a distance of dummy head; As 80 centimeters; Terminal to be measured; Be that mobile phone is placed on the dummy head in this example, the test case in the computer (prior design stores) through the sound card and the control assembly of front end, is play the speech that corresponding near-end sound is used to simulate terminal use to be measured through artificial mouth again; At this moment electric fan begins blowing, is to change according to predetermined rule or rotating speed control according to desired speed or rotating speed, measures the conversation audio frequency quality influence of blowing for terminal to be measured; Under electric fan blowing situation, into computer is imported signal through cable or wireless comprehensive test instrument and antenna, front end in terminal to be measured, and the conversation audio frequency objective quality of measuring the terminal to be measured under the wind analyzed, calculates by computer for the signal that receives.
The installation at the quantity of electric fan and disposing way and terminal to be measured and disposing way all are not limited to above example, and other form can be arranged.
Can be through front end or directly connects computer in terminal to be measured, can remove wireless comprehensive test instrument from.
Computer also can have other form computing equipment (like microprocessor, signal processor or the like) to replace.
Concrete steps are following:
(1) terminal to be measured is positioned on the dummy head, and the signal at terminal to be measured is connected with the signals collecting parts of front end through cable or radio;
(2) electric fan is placed in distance a distance, terminal to be measured;
(3) speed of computer control electric fan changes according to predetermined rule to desired speed or rotating speed, with the speech quality of the communication terminal of measuring different wind duration and different wind speed;
(4) computer is play pre-designed near end signal through artificial mouth, and the existing noiseless segment of this signal also has a plurality of voice segments;
(5) the signals collecting parts are gathered terminal signaling to be measured in the front end;
(6) the front end terminal signaling to be measured that will collect is delivered to computer, to carry out analytical calculation;
(7) computer carries out time unifying, analytical calculation to this signal, thereby draws the conversation audio quality of measurement.
Embodiment 2:
It is as shown in Figure 2,
Setting is the same with test process, and difference is:
The dummy head is connected on the turntable (circle among the figure), and the rotation of computer control turntable is to measure the speech quality at terminal to be measured under the various different directions wind states.Promptly after the conversation audio frequency mass measurement of this wind direction finished, the computer control turntable rotated, and makes above that dummy head and terminal to be measured forward the another one angle to, comes again test, had all rotated up to 360 degree; Each rotational angle is the number of degrees that are provided with in advance, or rotates continuously with certain rotating speed, does follow-on test.
Turntable is placed and rotating manner is not limited to above example, and other form can be arranged.
Embodiment 3:
As shown in Figure 3:
Setting is the same with test process, and difference is:
Computer directly connects electric fan, and computer directly connects turntable.
Embodiment 4:
As shown in Figure 4:
Terminal to be measured is under the hands-free mode, like the mobile phone under the hands-free mode, and the same Fig. 1 of its test process, difference is:
Put with hands-free mode at terminal to be measured, promptly; Terminal to be measured be placed on a support above, in the front of artificial mouth.
As shown in Figure 5, be test control flow of the present invention:
1. computer is earlier through front end or directly control electric fan and make it reach certain rotating speed or rotating speed changes according to predetermined rule;
2. computer sends the near-end voice signals of prerecording through front end at artificial mouth; Be used to measure the conversation audio quality of blowing for terminal to be measured; Near-end voice signals comprises; Quiet (voiceless sound) signal of plurality of sections and plurality of sections voice signal, voice can be by the male voice female voice, compositions such as big volume and small volume;
3. into computer is imported signal through cable or radio and front end in terminal to be measured;
4. computer is analyzed, is calculated the signal of gathering, and measures conversation audio quality under the wind;
5. if dummy head and terminal to be measured are placed on the turntable; The audio speech quality measurement of a wind direction finishes; Turntable can forward dummy head and terminal to be measured to the another one angle; Come again measurement, all rotated, thereby measure the sound conversation audio quality at the terminal to be measured under the different directions wind up to 360 degree.
As shown in Figure 6, be analytical calculation of the present invention:
1. computer receives terminal to be measured through front end and passes the signal of coming;
2. carry out aliging on the time with the calm signal of getting in advance of blowing down;
3. be benchmark with the calm signal of getting in advance of blowing down, compare, analytical calculation, thus the objective measurement that draws the conversation audio quality.
Claims (10)
1. communication terminal wind state subaudio frequency conversation measurement mechanism is characterized in that front end connects computer, and computer connects electric fan, and front end is through cable or dedicated radio link terminal to be measured.
2. communication terminal wind state subaudio frequency conversation measurement mechanism according to claim 1 is characterized in that front end connects artificial mouth, and terminal to be measured is placed on the dummy head.
3. communication terminal wind state subaudio frequency conversation method for automatic measurement according to claim 1 is characterized in that dummy head and terminal to be measured are placed on the automatic turntable, and computer directly connects or connects automatic turntable through front end.
4. communication terminal wind state subaudio frequency according to claim 1 conversation measurement mechanism is characterized in that electric fan is placed in outside 80 centimeters at the distance terminal to be measured.
5. communication terminal wind state subaudio frequency conversation measurement mechanism according to claim 1 is characterized in that artificial mouth is arranged on the dummy head.
6. communication terminal wind state subaudio frequency conversation measurement mechanism according to claim 1 is characterized in that said front end has signals collecting parts, control assembly, sound card parts, and the sound card parts connect artificial mouth.
7. communication terminal wind state subaudio frequency conversation measurement mechanism according to claim 1 is characterized in that described terminal to be measured is connected with the acquisition component of front end through cable or radio.
8. communication terminal wind state subaudio frequency conversation measurement mechanism according to claim 1 is characterized in that said computer connects control assembly and the signals collecting parts in the front end.
9. communication terminal wind state subaudio frequency conversation method of measurement, its step is:
(1) signal at terminal to be measured is connected with the signals collecting parts of front end through cable or radio;
(2) electric fan is placed in distance a distance, terminal to be measured;
(3) computer control electric fan rotating speed;
(4) computer is play pre-designed near end signal through artificial mouth;
(5) the signals collecting parts are gathered terminal signaling to be measured in the front end;
(6) the front end terminal signaling to be measured that will collect is delivered to computer;
(7) computer carries out analytical calculation to this signal, thereby measures the conversation audio quality at terminal to be measured.
10. communication terminal wind state subaudio frequency conversation method for automatic measurement according to claim 7 is characterized in that the existing noiseless segment of near end signal in the step (4), and a plurality of voice segments are also arranged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210142428.0A CN102685289B (en) | 2012-05-09 | 2012-05-09 | Device and method for measuring audio call quality of communication terminal in blowing state |
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| CN201210142428.0A CN102685289B (en) | 2012-05-09 | 2012-05-09 | Device and method for measuring audio call quality of communication terminal in blowing state |
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| CN102685289A true CN102685289A (en) | 2012-09-19 |
| CN102685289B CN102685289B (en) | 2014-12-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342877A (en) * | 2016-04-29 | 2017-11-10 | 展讯通信（上海）有限公司 | The method of testing and system of audio frequency of mobile terminal quality |
| WO2019047055A1 (en) * | 2017-09-06 | 2019-03-14 | 深圳传音制造有限公司 | Downlink voice anti-noise test system and method for communication terminal |
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| US20090306937A1 (en) * | 2006-09-29 | 2009-12-10 | Panasonic Corporation | Method and system for detecting wind noise |
| US20100017205A1 (en) * | 2008-07-18 | 2010-01-21 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for enhanced intelligibility |
| CN102208190A (en) * | 2011-05-06 | 2011-10-05 | 声科科技(南京)有限公司 | Measurement method and device for inhibiting unstable noise equipment convergence time |
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- 2012-05-09 CN CN201210142428.0A patent/CN102685289B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090306937A1 (en) * | 2006-09-29 | 2009-12-10 | Panasonic Corporation | Method and system for detecting wind noise |
| US20100017205A1 (en) * | 2008-07-18 | 2010-01-21 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for enhanced intelligibility |
| CN102208190A (en) * | 2011-05-06 | 2011-10-05 | 声科科技(南京)有限公司 | Measurement method and device for inhibiting unstable noise equipment convergence time |
Non-Patent Citations (1)
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| 刘凤娟、田海杰: "移动通信终端的音频质量分析", 《移动通信》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342877A (en) * | 2016-04-29 | 2017-11-10 | 展讯通信（上海）有限公司 | The method of testing and system of audio frequency of mobile terminal quality |
| WO2019047055A1 (en) * | 2017-09-06 | 2019-03-14 | 深圳传音制造有限公司 | Downlink voice anti-noise test system and method for communication terminal |
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| CN102685289B (en) | 2014-12-03 |
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Application publication date: 20120919 Assignee: Jiangsu Moore Information Technology Co., Ltd. Assignor: Nanjing Shengzhun Technology Co., Ltd. Contract record no.: 2012320001030 Denomination of invention: Device and method for measuring audio call quality of communication terminal in blowing state License type: Exclusive License Record date: 20121219 |
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