CN202818604U - Audio frequency testing system applicable to conference system - Google Patents
Audio frequency testing system applicable to conference system Download PDFInfo
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- CN202818604U CN202818604U CN 201220413096 CN201220413096U CN202818604U CN 202818604 U CN202818604 U CN 202818604U CN 201220413096 CN201220413096 CN 201220413096 CN 201220413096 U CN201220413096 U CN 201220413096U CN 202818604 U CN202818604 U CN 202818604U
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Abstract
Disclosed is an audio frequency testing system applicable to a conference system composed of a microphone, a sound console, a power amplifier, and a loudspeaker. The microphone, the sound console, the power amplifier, and the loudspeaker are sequentially connected. The audio frequency testing system comprises an acoustic signal generator, an acoustic signal processor, and an acoustic signal display, wherein the audio signal output terminal of the acoustic signal generator is connected with the input terminal of the microphone; the instruction signal output terminal of the acoustic signal generator is connected with the instruction signal input terminal of the acoustic signal processor; the audio signal input terminal of the acoustic signal processor is respectively connected with the signal output terminal of the sound console, the signal output terminal of the power amplifier, and the signal output terminal of the loudspeaker; the audio signal input terminal of the acoustic signal processor is respectively connected with the output terminal of the sound console, the output terminal of the power amplifier, and the output terminal of the loudspeaker; and the signal output terminal of the acoustic signal processor is connected with the signal input terminal of the acoustical signal display. The audio frequency testing system of the utility model features multi-spot detection, on-line monitoring, and high efficiency.
Description
Technical field
The utility model relates to a kind of audio-frequency test equipment of conference system, relates in particular to the audio test system that is used for conference system of a kind of multiple spot detection, on-line monitoring.
Background technology
Subjective assessment is mainly adopted in the at present audio frequency evaluation of conference system, needs the long period localization of faults in case go wrong, and does not also possess the function of on-line monitoring simultaneously, causes very large puzzlement for the conference system of priority support; A small amount of conference system audio frequency evaluation can adopt perception speech quality Evaluation Method or perception speech quality measurement method that audio quality is carried out objective evaluation, but this system is substantially for detection of use, do not possess simultaneously multi-point measurement function, do not possess the on-line monitoring function yet, can estimate audio-frequency index but help very limited to the maintenance of conference system.
Existing audio detection equipment is from following shortcoming:
1, spot measurement can't be assessed whole audio system performance;
2, detect and do not monitor, can't help for regular maintenance provides more effectively;
3, the integrated testability efficiency of the practice is lower, and it is longer to finish simultaneously the whole audio-frequency test time;
4, reference data that can't the optimizing audio system.
Summary of the invention
The purpose of this utility model just is to provide in order to address the above problem the audio test system that is used for conference system of a kind of multiple spot detection, on-line monitoring.
The utility model is achieved through the following technical solutions above-mentioned purpose:
Conference system described in the utility model comprises microphone, sound console, power amplifier and loud speaker, described microphone, described sound console, described power amplifier is connected successively with described loud speaker, described audio test system comprises sound signal generator, acoustic signal processor harmony Signal Monitor, the audio signal output end of described sound signal generator is connected with the input of described microphone, the command signal output of described sound signal generator is connected with the command signal input of described acoustic signal processor, the audio signal input end of described acoustic signal processor respectively with the signal output part of described sound console, the signal output part of described power amplifier be connected the signal output part of loud speaker and connect, the audio signal input end of described acoustic signal processor respectively with the output of described sound console, the output of described power amplifier and the corresponding connection of described loud speaker output, the signal output part of described acoustic signal processor is connected with the signal input part of described acoustical signal display.
Further, described sound signal generator comprises generator controller, the D/A change-over circuit, power amplifier and sleeve loud speaker, the audio signal output end of described generator controller is connected with the signal input part of described D/A change-over circuit, the signal output part of described D/A change-over circuit is connected with the signal input part of described power amplifier, the signal output part of described power amplifier is connected with the signal input part of described sleeve loud speaker, the signal output part of described sleeve loud speaker is the audio signal output end of described sound signal generator, and the command signal output of described generator controller is the command signal output of described sound signal generator.
Further, described acoustic signal processor comprises processing controller, the A/D sample circuit, pre-process circuit and communication interface circuit, the command signal output of described processing controller is connected with the command signal input of described A/D sample circuit, the audio signal input end of described A/D sample circuit is the audio signal input end of described acoustic signal processor, the audio signal output end of described A/D sample circuit is connected with the input of described pre-process circuit, the output of described pre-process circuit is connected with the input of described communication interface circuit, and the output of described communication interface circuit is the signal output part of described acoustic signal processor.
Particularly, described acoustical signal display comprises display controller, display screen and input/output interface circuit, the signal input part of described display screen is the signal input part of described acoustical signal display, the control input end of described display screen is connected with the control output end of described display controller, and the signal output part of described display screen is connected with the signal input part of described input/output interface circuit.
The beneficial effects of the utility model are:
The utility model detects online and monitors a plurality of points of conference system by the A/D sample circuit, has the following advantages:
1, multimetering, it is stronger to assess whole audio system performance;
2, realize the online detection of multiple spot and monitoring, help for regular maintenance provides more effectively;
3, simultaneously each point of conference system is tested, efficient is higher, and it is shorter to finish the whole audio-frequency test time;
4, reference data that can the optimizing audio system.
Description of drawings
Fig. 1 is the structured flowchart of a kind of audio test system for conference system described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1: the utility model comprises conference system and audio test system, audio test system comprises sound signal generator, acoustic signal processor harmony Signal Monitor, the audio signal output end of sound signal generator is connected with the audio signal input end of conference system, the command signal output of sound signal generator is connected with the command signal input of acoustic signal processor, the audio signal input end of acoustic signal processor is connected with the signal output part of conference system, the signal output part of acoustic signal processor is connected with the signal input part of acoustical signal display, conference system comprises microphone, sound console, power amplifier and loud speaker, sound signal generator comprises generator controller, the D/A change-over circuit, power amplifier and sleeve loud speaker, acoustic signal processor comprises processing controller, the A/D sample circuit, pre-process circuit and communication interface circuit, the acoustical signal display comprises display controller, display screen and input/output interface circuit, microphone, sound console, power amplifier is connected successively with loud speaker, the audio signal output end of generator controller is connected with the signal input part of D/A change-over circuit, the command signal output of generator controller is connected with the command signal input of processing controller, the signal output part of D/A change-over circuit is connected with the signal input part of power amplifier, the signal output part of power amplifier is connected with the signal input part of sleeve loud speaker, the signal output part of sleeve loud speaker is connected with the signal input part of microphone, the command signal output of processing controller is connected with the command signal input of A/D sample circuit, the audio signal input end of A/D sample circuit respectively with the signal output part of sound console, the signal output part of power amplifier is connected with the signal output part of loud speaker, the audio signal output end of A/D sample circuit is connected with the input of pre-process circuit, the output of pre-process circuit is connected with the input of communication interface circuit, the output of communication interface circuit is connected with the signal input part of display screen, the control input end of display screen is connected with the control output end of display controller, and the signal output part of display screen is connected with the signal input part of input/output interface circuit.
The utility model by sound signal generator according to pre-provisioning request, send the mixed signal of serial simple signal, limit the duration that signal sends, when sound signal generator sends to mixed signal the conference system audio systems such as sound console, sound signal generator sends command signal to acoustic signal processor, acoustic signal processor will gather audio signal, perform mathematical calculations for the acoustical signal that collects, the frequency spectrum that calculates and the frequency spectrum that transmits are compared, obtain testing result, and obtain simultaneously abort situation and fault message, acoustic signal processor sends to the acoustical signal display with testing result, show the result at display, and preserve simultaneously, check in order to the conference system operating state.
Claims (4)
1. audio test system that is used for conference system, described conference system comprises microphone, sound console, power amplifier and loud speaker, described microphone, described sound console, described power amplifier is connected successively with described loud speaker, it is characterized in that: described audio test system comprises sound signal generator, acoustic signal processor harmony Signal Monitor, the audio signal output end of described sound signal generator is connected with the input of described microphone, the command signal output of described sound signal generator is connected with the command signal input of described acoustic signal processor, the audio signal input end of described acoustic signal processor respectively with the signal output part of described sound console, the signal output part of described power amplifier be connected the signal output part of loud speaker and connect, the audio signal input end of described acoustic signal processor respectively with the output of described sound console, the output of described power amplifier and the corresponding connection of described loud speaker output, the signal output part of described acoustic signal processor is connected with the signal input part of described acoustical signal display.
2. a kind of audio test system for conference system according to claim 1, it is characterized in that: described sound signal generator comprises generator controller, the D/A change-over circuit, power amplifier and sleeve loud speaker, the audio signal output end of described generator controller is connected with the signal input part of described D/A change-over circuit, the signal output part of described D/A change-over circuit is connected with the signal input part of described power amplifier, the signal output part of described power amplifier is connected with the signal input part of described sleeve loud speaker, the signal output part of described sleeve loud speaker is the audio signal output end of described sound signal generator, and the command signal output of described generator controller is the command signal output of described sound signal generator.
3. a kind of audio test system for conference system according to claim 1, it is characterized in that: described acoustic signal processor comprises processing controller, the A/D sample circuit, pre-process circuit and communication interface circuit, the command signal output of described processing controller is connected with the command signal input of described A/D sample circuit, the audio signal input end of described A/D sample circuit is the audio signal input end of described acoustic signal processor, the audio signal output end of described A/D sample circuit is connected with the input of described pre-process circuit, the output of described pre-process circuit is connected with the input of described communication interface circuit, and the output of described communication interface circuit is the signal output part of described acoustic signal processor.
4. a kind of audio test system for conference system according to claim 1, it is characterized in that: described acoustical signal display comprises display controller, display screen and input/output interface circuit, the signal input part of described display screen is the signal input part of described acoustical signal display, the control input end of described display screen is connected with the control output end of described display controller, and the signal output part of described display screen is connected with the signal input part of described input/output interface circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413096 CN202818604U (en) | 2012-08-20 | 2012-08-20 | Audio frequency testing system applicable to conference system |
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| CN 201220413096 CN202818604U (en) | 2012-08-20 | 2012-08-20 | Audio frequency testing system applicable to conference system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788611A (en) * | 2016-02-25 | 2016-07-20 | 成都普创通信技术股份有限公司 | Audio quality online monitoring system |
| CN106993257A (en) * | 2017-05-19 | 2017-07-28 | 深圳市创艺工业技术有限公司 | A kind of audio player with inducing function |
| CN107195311A (en) * | 2017-05-19 | 2017-09-22 | 上海喆之信息科技有限公司 | A kind of Wearable ANTENNAUDIO interactive system |
-
2012
- 2012-08-20 CN CN 201220413096 patent/CN202818604U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788611A (en) * | 2016-02-25 | 2016-07-20 | 成都普创通信技术股份有限公司 | Audio quality online monitoring system |
| CN106993257A (en) * | 2017-05-19 | 2017-07-28 | 深圳市创艺工业技术有限公司 | A kind of audio player with inducing function |
| CN107195311A (en) * | 2017-05-19 | 2017-09-22 | 上海喆之信息科技有限公司 | A kind of Wearable ANTENNAUDIO interactive system |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20130320 Termination date: 20150820 |
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| EXPY | Termination of patent right or utility model |