CN202873056U - Measuring device for sound pickup range of communication terminal - Google Patents
Measuring device for sound pickup range of communication terminal Download PDFInfo
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- CN202873056U CN202873056U CN 201220246859 CN201220246859U CN202873056U CN 202873056 U CN202873056 U CN 202873056U CN 201220246859 CN201220246859 CN 201220246859 CN 201220246859 U CN201220246859 U CN 201220246859U CN 202873056 U CN202873056 U CN 202873056U
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Abstract
The utility model relates to a measuring device for a sound pickup range of a communication terminal. A loudspeaker is arranged on the other side of a terminal to be measured; the terminal to be measured and an artificial mouth are arranged on an artificial head; and the artificial head is arranged on a rotating platform. The measuring device overcomes the defects that conventional measurements of the sound pickup range are centered on the directivity, the pickup intensity of sounds in different distances cannot be measured as only a single sound is played, and results of the measurements are inaccurate. The measuring device can measure out the sound pickup range of the terminal to be measured, thereby providing an effective, objective, and accurate measurement of the sound pickup range, accurately measuring the sound pickup range of the terminal to be measured, and ensuring the accuracy, effectiveness, and objectivity of the measurement of the sound pickup range.
Description
Technical field
The utility model relates to the communication terminal sound pickup device, and particularly communication terminal sound picks up range measuring device.
Background technology
Multi-microphone de-noising scheme is used by communication terminals such as increasing mobile phones, multi-microphone de-noising scheme is that than the advantage of single microphone de-noising the multi-microphone de-noising has the clear and definite scope of picking up, the sound that namely picks up in the scopes such as certain direction and distance is stronger, and the sound that picks up of place beyond these directions and the distance a little less than, pick up the sound of wanting with this scope of picking up, and the undesired sound that disappears, thereby reach the effect of de-noising.Therefore test the very important index that its scope of picking up is communication terminal, particularly for the communication terminal with multi-microphone de-noising function.
Before the present utility model, the measurement of picking up scope is to concentrate on directivity, and only play single sound, namely and direction concrete at certain placed loudspeaker, communication terminal is positioned on the turntable, measures communication terminal by the rotation of turntable the sound of all angles is picked up intensity.Have several defectives but do like this, one cannot be measured the intensity of picking up of sound on the different distance; They are two years old, the result who measures is inaccurate, because the signal processing algorithm in some communication terminal needs in real time a plurality of microphones to be carried out the calibration of sensitivity, but this calibration need to have the near-end sound of wanting usually, such as the own face voice of cellphone subscriber, as a reference, so the near-end sound of not wanting can cause and can't calibrate or accurate inaccurate, thereby test is also inaccurate, and unstable.
Summary of the invention
The purpose of this utility model just is to overcome defects, develops a kind of communication terminal sound and picks up range measuring device.
The technical solution of the utility model is:
Communication terminal sound picks up range measuring device, and its technical characteristics is at terminal opposite side to be measured loudspeaker to be set, and terminal to be measured, artificial mouth are set on the dummy head, and the dummy head is arranged on the turntable.
Advantage of the present utility model and effect are that the sound of measuring stably, all sidedly terminal to be measured picks up scope, thereby provide one effective, objective, sound picks up the measurement of scope exactly, before having solved like this cannot measure that sound on the different distance picks up intensity and the near-end sound do not wanted as the instable problem of measurement that causes with reference to calibration, thereby the sound of Measurement accuracy terminal to be measured picks up scope, and it is accurate and effective and objective to have guaranteed that the sound scope of picking up is measured.
Other concrete advantages of the present invention and effect will go on to say below.
Description of drawings
Fig. 1---hand-held mode general structure block diagram of the present invention.
The another kind of hand-held mode structure of Fig. 2---the present invention block diagram.
The third hand-held mode structure block diagram of Fig. 3---the present invention.
Fig. 4---hands-free mode structure block diagram of the present invention.
Fig. 5---test process block diagram of the present invention.
Each label represents that corresponding component names is as follows among the figure:
Loudspeaker 1 (1-1,1-2,1-3), dummy head 2, terminal to be measured 3, artificial mouth 4, turntable 5, antenna 6, wireless comprehensive test instrument 7, front end 8, computer 9.
Embodiment
Embodiment 1:
As shown in Figure 1:
The measurement mechanism that communication terminal sound picks up scope mainly is comprised of turntable 5, dummy head 2, wireless comprehensive test instrument 7 and antenna 6, terminal to be measured 3, loudspeaker 1, front end 8 and computer 9; Terminal 3 to be measured is arranged on the dummy head 2; Artificial mouth 4 is set on the dummy head 2; Dummy head 2 comprises that terminal 3 to be measured is positioned on the turntable 5; Computer 9 connects front end 8; Front end 8 comprises multichannel sound card, near-end sound card, signals collecting parts, control assembly; Front end 8 connects respectively loudspeaker 1, wireless comprehensive test instrument 7, turntable 5, artificial mouth 4, terminal to be measured 3 and comprises mobile phone etc.; Turntable 5 can automatic speed regulation; Terminal 3 to be measured connects wireless comprehensive test instrument 7 by cable or antenna 6 (wireless).
The test process explanation:
Loudspeaker 1 are positioned over dummy head 2 one side places, it is a distance, such as 1.0 meters, terminal 3 to be measured such as mobile phone placing on dummy head 2, near-end test case in the computer 9 (prior design stores) is by sound card and the control assembly of front end 8, play the speech that corresponding near-end sound is used for simulating terminal 3 users to be measured by artificial mouth 4 again, to be used for the sensitivity of terminal 3 calibration multi-microphones to be measured; Loudspeaker 1 send predetermined sound under the control of computer 9 by front end 8; Terminal 3 to be measured is imported signal into computer 9 by wireless comprehensive test instrument 7 and antenna 6, front end 8, and computer 9 is analyzed, calculated for the signal that receives, and measures the intensity of picking up sound in this direction of terminal 3 to be measured; After an orientation measurement was finished, computer 9 control turntables 5 forwarded the duplicate measurements of another one angle to, measure until 360 degree have turned.
Wireless comprehensive test instrument 7 is not a necessary device, and terminal 3 to be measured can connect front end 8 or directly connect computer 9.
The broadcast of near-end sound can have several modes:
1) only put near-end sound when whole measurement begins, calibrate the sensitivity of microphone when namely beginning, then only play the sound of loudspeaker 1, the sound of measuring terminal 3 to be measured picks up scope;
2) put near-end sound when each angular surveying begins, namely turntable forwards each angle to and calibrates, and then plays the sound of loudspeaker 1, measures terminal 3 to be measured and picks up intensity at the sound of this angle;
3) when each angular surveying, play simultaneously near-end sound and and the sound of loudspeaker 1, measure terminal 3 to be measured and pick up intensity at the sound of this angle.
Embodiment 2:
As shown in Figure 2:
Setting is the same with test process, and difference is:
Place a plurality of loudspeaker in different directions and distance, namely leave terminal to be measured apart from difference, highly different, with the intensity of picking up of sound on the measurement different distance; Be 3 loudspeaker 1-1, loudspeaker 1-2, loudspeaker 1-3 in this example.
Embodiment 3:
As shown in Figure 3:
Setting and test process are with embodiment 1, and difference is:
Embodiment 4:
As shown in Figure 4:
Setting and test process are with embodiment 1, and difference is:
Test process is as shown in Figure 5:
Loudspeaker 1 are positioned over a distance of dummy head 2, the near-end speech of prerecording in the computer 9 is by sound card and the control assembly of front end 8, play the speech that corresponding near-end sound is used for simulating terminal 3 users to be measured by artificial mouth 4 again, to be used for the sensitivity of terminal 3 calibration multi-microphones to be measured; The sound that computer 9 is prerecorded is play at loudspeaker 9 by front end 8; Terminal 3 to be measured is imported signal into computer 9 by wireless comprehensive test instrument 7 and antenna 6, front end 8, and computer 9 is analyzed, calculated for the signal that receives, and measures the intensity of picking up sound in this direction of terminal 3 to be measured.After an orientation measurement was finished, computer 9 control turntables forwarded the duplicate measurements of another one angle to, measure until 360 degree have turned.
Claims (8)
1. communication terminal sound picks up range measuring device, it is characterized in that at terminal to be measured one side place loudspeaker being set, and terminal to be measured, artificial mouth are set on the dummy head, and the dummy head is arranged on the turntable.
2. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that computer directly or by front end, connects respectively loudspeaker, turntable, artificial mouth, terminal to be measured.
3. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that artificial mouth plays near-end sound, and loudspeaker play sound and measure sound and pick up scope.
4. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that terminal to be measured can connect computer or front end by wireless or cable.
5. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that loudspeaker are one or more.
According to claim 1 or 4 described communication terminal sound pick up range measuring device, it is characterized in that a plurality of loudspeaker are separately positioned on the different distance place.
7. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that loudspeaker are arranged on the motion, and motion is slidingly connected on the guide rail, guide rail be arranged on terminal same plane to be measured on.
8. communication terminal sound according to claim 1 picks up range measuring device, it is characterized in that terminal to be measured is arranged to hands-free state and is positioned over the place ahead of artificial mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246859 CN202873056U (en) | 2012-05-29 | 2012-05-29 | Measuring device for sound pickup range of communication terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246859 CN202873056U (en) | 2012-05-29 | 2012-05-29 | Measuring device for sound pickup range of communication terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202873056U true CN202873056U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220246859 Expired - Fee Related CN202873056U (en) | 2012-05-29 | 2012-05-29 | Measuring device for sound pickup range of communication terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN202873056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694894A (en) * | 2012-05-29 | 2012-09-26 | 南京声准科技有限公司 | Measuring device for sound collection range of communication terminal |
| WO2023160071A1 (en) * | 2022-02-22 | 2023-08-31 | 公安部第三研究所 | Head and shoulder structure having turning function |
-
2012
- 2012-05-29 CN CN 201220246859 patent/CN202873056U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694894A (en) * | 2012-05-29 | 2012-09-26 | 南京声准科技有限公司 | Measuring device for sound collection range of communication terminal |
| WO2023160071A1 (en) * | 2022-02-22 | 2023-08-31 | 公安部第三研究所 | Head and shoulder structure having turning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20160529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |