CN104333752B - Carry out the method and device of audio quality diagnosis - Google Patents
Carry out the method and device of audio quality diagnosis Download PDFInfo
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Abstract
The invention discloses the method and device for carrying out audio quality diagnosis, wherein, this method includes:Source audio is obtained, starts and treats that the playing module of diagnostic device plays source audio;The audio played is gathered, testing audio is expressed as;Source audio and the correlation of testing audio are calculated, correlation is obtained;Judge whether correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.The present invention program is diagnosed in which can realize automated intelligent to audio quality.
Description
Technical field
The present invention relates to audio signal processing technique, more particularly to carry out the method and device of audio quality diagnosis.
Background technology
Audio devices in diagnostic device are treated in use, due to aging, electromagnetic interference and some human factors
Etc. reason, audio devices are caused to be not normally functioning.Lower mask body by video monitoring system treat diagnostic device exemplified by carry out
Illustrate, this treats that diagnostic device is specially web camera (IPC, IP Camera), digital hard disc video recorder (DVR, Digital
Video Recorder) etc..
In video monitoring system, diagnostic device collected sound signal is treated, sound prison is carried out based on the audio collected
Control.During monitoring, monitoring personnel is by listening to the audio signal of collection, to realize the sound monitoring to corresponding scene;However, making
During, due to many factors, cause to treat that the audio devices in diagnostic device are not normally functioning.In existing scheme, use
Manual type diagnosis treats whether diagnostic device breaks down, and specifically, staff is monitored the audio signal of collection, such as
There is exception in fruit, then determines failure, then further treats diagnostic device and carries out maintenance processing.But in practical application, work people
Member generally can not monitor sound always, it is impossible to find to treat the problem of diagnostic device is present in time, and then be unable to reach the mesh of monitoring
's.
It can be seen that, it is existing not only to be wasted time and energy by the way of artificial detection is diagnosed, and effect is not good, is being greatly
It is practically impossible to what is realized in system.
The content of the invention
The invention provides a kind of method for carrying out audio quality diagnosis, this method is with can realizing automated intelligent to audio
Quality is diagnosed.
The invention provides a kind of device for carrying out audio quality diagnosis, the device is with can realizing automated intelligent to audio
Quality is diagnosed.
A kind of method for carrying out audio quality diagnosis, this method includes:
Source audio is obtained, starts and treats that the playing module of diagnostic device plays source audio;
The audio played is gathered, testing audio is expressed as;
Source audio and the correlation of testing audio are calculated, correlation is obtained;
Judge whether correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.
A kind of device for carrying out audio quality diagnosis, the device includes source audio acquisition and broadcasting starting module, audio are adopted
Collect module, correlation computations module and judge module;
The source audio obtains and played starting module, obtains source audio, starts and treats that the playing module of diagnostic device is played
Source audio, acquisition instructions are sent to the audio collection module;
The audio collection module, receives the acquisition instructions that the source audio is obtained and playing module is sent, and collection is played
Audio, be expressed as testing audio, testing audio be sent to the correlation computations module;
The correlation computations module, calculates source audio and the correlation of testing audio, obtains correlation, correlation is sent
To the judge module;
The judge module, judges whether correlation is more than dependent thresholds, if it is not, then determining to treat diagnostic device event
Barrier.
From such scheme as can be seen that in the present invention, obtaining source audio, start the playing module broadcast source for treating diagnostic device
Audio;The audio played is gathered, testing audio is expressed as;Source audio and the correlation of testing audio are calculated, correlation is obtained;Sentence
Whether disconnected correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.The present invention is by treating diagnostic device to certainly
The audio that body is played is acquired, and obtains testing audio, determines to treat according further to source audio and the correlation of testing audio
The audio-frequency function of diagnostic device whether there is failure;So as to be diagnosed to audio quality with realizing automated intelligent, without work
Make personnel to be monitored always, save manpower, also improve the accuracy and efficiency of diagnosis.
Brief description of the drawings
Fig. 1 carries out the method indicative flowchart of audio quality diagnosis for the present invention;
Fig. 2 carries out the method flow diagram example of audio quality diagnosis for the present invention;
Fig. 3 carries out the apparatus structure schematic diagram of audio quality diagnosis for the present invention;
Fig. 4 carries out the apparatus structure schematic diagram example of audio quality diagnosis for the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is further described.
In existing audio quality diagnosis scheme, treat whether diagnostic device breaks down using manual type diagnosis, by work
Make personnel to monitor the audio signal of collection, but in practical application, staff generally can not monitor sound always, it is impossible to
Find to treat the problem of diagnostic device is present in time, and then be unable to reach the purpose of monitoring.
In order to solve the technical problem, the present invention is carried out by treating that diagnostic device obtains source audio to the audio itself played
Collection, obtains testing audio, determines to treat the audio work(of diagnostic device according further to source audio and the correlation of testing audio
Failure can be whether there is;So as to be diagnosed to audio quality with realizing automated intelligent.
It is the method indicative flowchart that the present invention carries out audio quality diagnosis, it comprises the following steps referring to Fig. 1:
Step 101, source audio is obtained, starts and treats that the playing module of diagnostic device plays source audio.
Source audio be used for diagnostic device audio quality, on the basis of audio.Treat that diagnostic device is broadcast by the playing module of itself
Put source audio.
Step 102, the audio that collection is played, is expressed as testing audio.
Treat that the audio that diagnostic device is played to itself is acquired, specifically, can be set by self-contained microphone etc.
It is standby to carry out audio collection.
Step 103, source audio and the correlation of testing audio are calculated, correlation is obtained.
Know after source audio and testing audio, to source audio and and testing audio correlation calculating, a variety of sides can be used
Method is realized.It is illustrated below:
Mode one, the data of source audio are multiplied with the data of testing audio, regard obtained value as correlation.
Situation for including numerous sampled points, can be calculated using equation below and obtained:
Wherein, cox is correlation, sm(n) m frames, the data of n-th sampled point of source audio are represented;tm(n) represent to survey
The data of the m frames of audition frequency, n-th sampled point, N represents that every frame has N number of sampled point.
Mode two, the data of source audio are multiplied with the data of testing audio, obtain multiplied value;And calculate normalization
Value, multiplied value is divided by with normalized value, obtained value of being divided by is regard as correlation.
Specifically, it can be calculated using formula below:
Wherein, sm(n) m frames, the data of n-th sampled point of source audio are represented;tm(n) m of testing audio is represented
The data of frame, n-th sampled point;M represents source audio and a total of M frames of testing audio, and N represents that every frame has N number of sampled point.
Step 104, judge whether correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.
Dependent thresholds can be set as needed.If it is judged that correlation is more than dependent thresholds, show source audio and test
The degree of correlation of audio is very high, it is determined that treating that diagnostic device is normal;If it is judged that correlation is not more than dependent thresholds, show source audio
The degree of correlation with testing audio is relatively low, it is determined that equipment fault to be diagnosed.
Determine after failure, failure alarm signal can be sent, for example, eject prompting frame in display interface, or, send alarm
Voice signal.Failure cause has a variety of, such as electromagnetic interference, joint virtual connection, disconnection factor;Know after alarm signal, work
Personnel can treat diagnostic device in time and be detected, make maintenance processing.
Fig. 1 audio quality diagnostic process, can at any time be triggered in the case of needing.Also can periodically it trigger, the cycle
Value can be set as needed, and diagnosis in such as every 5 days is once;Correspondingly, source audio is obtained described in step 101 includes:Periodically
Obtain source audio.
Fig. 1 audio quality diagnostic process can be completed treating diagnostic device side, also can be by treating that diagnostic device and terminal are calculated
Equipment is completed jointly.Illustrate separately below.
For treating the situation that diagnostic device side is completed:
Device memory source of bank savings audio to be diagnosed, the source audio of storage is obtained when triggering diagnosis, is played out;Treat that diagnosis is set
The audio that standby collection is played, is expressed as testing audio, and calculates source audio and the correlation of testing audio, obtains correlation;Sentence
Whether disconnected correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.
For by treating the situation that diagnostic device and terminal computing device are completed jointly:
Source audio is encoded by terminal computing device, the source audio after coding is treated that diagnosis is set by network transmission
It is standby;
Treat that diagnostic device obtains source audio, source audio is decoded, start the playing module broadcast source for treating diagnostic device
Audio;
The audio that diagnostic device collection is played is treated, testing audio is expressed as, testing audio is encoded, after coding
Testing audio is sent to terminal computing device and carries out correlation calculations.
In the present invention, source audio is obtained, starts and treats that the playing module of diagnostic device plays source audio;Gather the sound played
Frequently, it is expressed as testing audio;Source audio and the correlation of testing audio are calculated, correlation is obtained;Judge that correlation is not more than phase
When closing threshold value, it is determined that equipment fault to be diagnosed.The present invention is obtained by treating that the audio that diagnostic device is played to itself is acquired
Testing audio, determines to treat that the audio-frequency function of diagnostic device whether there is according further to source audio and the correlation of testing audio
Failure;So as to be diagnosed to audio quality with realizing automated intelligent, be monitored, saved always without staff
Manpower, also improves efficiency, effectively prevents to cause what audio quality declined because of the link failure such as sound collection, playing device
Problem.After equipment generation problem, it can handle in time, it is ensured that treat the normal operation of diagnostic device.
Below by Fig. 2 flow, the method that the present invention carries out audio quality diagnosis is illustrated, it include with
Lower step:
Step 201, terminal computing device is encoded to source audio, and the source audio after coding is treated by network transmission
Diagnostic device.
The terminal computing device is specific such as PC.
Step 202, treat that diagnostic device obtains source audio, source audio is decoded, start the broadcasting mould for treating diagnostic device
Block plays source audio.
Step 203, the audio that diagnostic device collection is played is treated, testing audio is expressed as.
Step 204, treat that diagnostic device is encoded to testing audio, the testing audio after coding is given by network transmission
Terminal computing device.
Specifically, the audio signal played can be gathered through the microphone on IPC (or DVR), obtains testing audio.
Step 205, terminal computing device receives the testing audio for treating that diagnostic device is transmitted by network, is decoded.
Step 206, terminal computing device calculates source audio and the correlation of testing audio, obtains correlation.
This example carries out calculating normalized correlation using formula below:
Step 207, judge whether correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed, otherwise
Treat diagnostic device normal operation;Otherwise determine to treat that diagnostic device is normally run.
The present invention audio quality diagnosis scheme by by original audio it is encoded, transmission, decoding, set in IPC (or DVR)
The standby upper audio signal played, broadcasting is gathered through the microphone on IPC (or DVR), obtains testing audio;It is original by calculating again
The normalized correlation of audio and testing audio, and compared with the threshold value of setting, judge whether whether equipment is normal.By comparing
The correlation of original audio and testing audio, can detect the sound pick-up sound caused by the virtual connection of sound pick-up joint, electromagnetic interference etc.
Sound can not the factor such as acquisition problems, playback problem, so as to realize the diagnosis for effectively carrying out audio quality.
Referring to Fig. 3, the present invention carries out the device of audio quality diagnosis, and the device includes source audio acquisition and played to start mould
Block, audio collection module, correlation computations module and judge module;
The source audio obtains and played starting module, obtains source audio, starts and treats that the playing module of diagnostic device is played
Source audio, acquisition instructions are sent to the audio collection module;
The audio collection module, receives the acquisition instructions that the source audio is obtained and playing module is sent, and collection is played
Audio, be expressed as testing audio, testing audio be sent to the correlation computations module;
The correlation computations module, calculates source audio and the correlation of testing audio, obtains correlation, correlation is sent
To the judge module;
The judge module, judges whether correlation is more than dependent thresholds, if it is not, then determining to treat diagnostic device event
Barrier.
If it is judged that correlation is more than dependent thresholds, show that the degree of correlation of source audio and testing audio is very high, it is determined that treating
Diagnostic device is normal;If it is judged that correlation is not more than dependent thresholds, show that the degree of correlation of source audio and testing audio is relatively low,
It is determined that equipment fault to be diagnosed.Determine after failure, failure alarm signal can be sent, for example, eject prompting frame in display interface, or
Person, sends the voice signal of alarm.Failure cause has a variety of, such as electromagnetic interference, joint virtual connection, disconnection factor;Know alarm
After signal, staff can treat diagnostic device in time and be detected, make maintenance processing.
This example treats that diagnostic device is specially IPC, DVR etc..
Audio quality diagnostic process can be completed treating diagnostic device side, also can be by treating that diagnostic device and terminal computing device are total to
With completion.For treating the situation that diagnostic device side is completed:Device memory source of bank savings audio to be diagnosed, obtains when triggering diagnosis and deposits
The source audio of storage, is played out;The audio that diagnostic device collection is played is treated, testing audio is expressed as, and calculate source audio and survey
The correlation of audition frequency, obtains correlation;Judge whether correlation is more than dependent thresholds, if it is not, then determining to treat that diagnosis is set
Standby failure.For by treating the situation that diagnostic device and terminal computing device are completed jointly:The source audio, which is obtained and played, to be started
Module includes source audio sending submodule, source audio and receives and play startup submodule, and the source audio, which is received and played, to be started
Submodule, which is placed in, to be treated in diagnostic device, and the source audio sending submodule, correlation computations module and judge module are placed in terminal meter
Calculate in equipment, apparatus structure schematic diagram as shown in Figure 4;
The source audio sending submodule, encodes to source audio, the source audio after coding is given by network transmission
The source audio, which is received and played, starts submodule;
The source audio, which is received and played, starts submodule, receives source audio, source audio is decoded, starts and waits to diagnose
Source audio after the playing module broadcast decoder of equipment, acquisition instructions are sent to the audio collection module;
The audio collection module, gathers after the audio played, also testing audio is encoded, by the test after coding
Audio is sent to the correlation computations module;
The correlation computations module, receives testing audio, is first decoded, then to calculate source audio related to testing audio
Property.
Know after source audio and testing audio, to source audio and and testing audio correlation calculating, a variety of sides can be used
Method is realized.It is preferred that the correlation computations module includes the first calculating sub module or the second calculating sub module;
First calculating sub module, the data of source audio are multiplied with the data of testing audio, by obtained value
It is used as correlation;
Second calculating sub module, the data of source audio are multiplied with the data of testing audio, multiplied value is obtained;
And normalized value is calculated, multiplied value is divided by with normalized value, obtained value of being divided by is regard as correlation.
It is preferred that the device also includes alarm module, it is placed in terminal computing device;The judge module, is judging
When correlation is not more than dependent thresholds, alarm command is sent to the alarm module;
The alarm module, receives after the alarm command from the judge module, sends failure alarm signal.
The present invention program may be applicable to the various situations diagnosed to the audio-frequency function of equipment, for example, for supervising
The equipment monitored in control system scene acoustic information.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (10)
1. a kind of method for carrying out audio quality diagnosis, applied in video monitoring system, the video monitoring system includes many
Individual web camera or digital hard disc video recorder, it is characterised in that this method includes:
Treat that diagnostic device obtains source audio, start and treat that the playing module of diagnostic device plays source audio;
Treat that diagnostic device gathers the audio of the broadcasting, be expressed as testing audio;
Source audio and the correlation of testing audio are calculated, correlation is obtained;
Judge whether correlation is more than dependent thresholds, if it is not, then equipment fault to be diagnosed is determined, wherein treating diagnostic device bag
Containing web camera or digital hard disc video recorder.
2. the method as described in claim 1, it is characterised in that the acquisition source audio includes:Terminal computing device is to source sound
Frequency is encoded, and the source audio after coding is transferred to and treats diagnostic device;
The startup treats that the playing module broadcast source audio of diagnostic device includes:Source audio is decoded, starts and treats that diagnosis is set
Source audio after standby playing module broadcast decoder;
After the audio of the collection broadcasting, in addition to:Testing audio is encoded, the test tone after coding is taken place frequently
Give terminal computing device and carry out correlation calculations.
3. the method as described in claim 1, it is characterised in that the calculating source audio and the correlation of testing audio include:
The data of source audio are multiplied with the data of testing audio, obtained value are regard as correlation;Or;
The data of source audio are multiplied with the data of testing audio, multiplied value is obtained;And normalized value is calculated, by multiplied value
It is divided by with normalized value, regard obtained value of being divided by as correlation.
4. the method as described in claim 1, it is characterised in that under the calculating source audio and the correlation of testing audio are used
Formula calculating is stated to obtain:
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Wherein, cox represents correlation, sm(n) m frames, the data of n-th sampled point of source audio are represented;tm(n) test is represented
The data of the m frames of audio, n-th sampled point;M represents source audio and a total of M frames of testing audio, and N represents that every frame has N number of adopt
Sampling point.
5. the method as any one of Claims 1-4, it is characterised in that it is described determine equipment fault to be diagnosed after,
This method also includes:Send failure alarm signal.
6. method as claimed in claim 5, it is characterised in that the acquisition source audio includes:Periodically obtain source audio.
7. a kind of device for carrying out audio quality diagnosis, applied in video monitoring system, the video monitoring system includes many
Individual web camera or digital hard disc video recorder, it is characterised in that the device include source audio obtain and play starting module,
Audio collection module, correlation computations module and judge module;
The source audio obtains and played starting module, obtains source audio, starts the playing module broadcast source sound for treating diagnostic device
Frequently, acquisition instructions are sent to the audio collection module, wherein treating that diagnostic device is recorded comprising web camera or digital hard disk
Camera;
The audio collection module, receives the source audio and obtains and play the acquisition instructions that starting module is sent, collection is described
The audio of broadcasting, is expressed as testing audio, and testing audio is sent into the correlation computations module;
The correlation computations module, calculates source audio and the correlation of testing audio, obtains correlation, correlation is sent into institute
State judge module;
The judge module, judges whether correlation is more than dependent thresholds, if it is not, then determining equipment fault to be diagnosed.
8. device as claimed in claim 7, it is characterised in that the source audio, which obtains and played starting module, includes source audio
Sending submodule, source audio, which are received and played, starts submodule, and the source audio is received and broadcasting starts submodule and is placed in follow-up
In disconnected equipment, the source audio sending submodule, correlation computations module and judge module are placed in terminal computing device;
The source audio sending submodule, is encoded to source audio, by the source audio after coding by network transmission to described
Source audio, which is received and played, starts submodule;
The source audio, which is received and played, starts submodule, receives source audio, source audio is decoded, diagnostic device is treated in startup
Playing module broadcast decoder after source audio, to the audio collection module send acquisition instructions;
After the audio collection module, the audio for gathering the broadcasting, also testing audio is encoded, by the test after coding
Audio is sent to the correlation computations module;
The correlation computations module, receives testing audio, is first decoded, then calculate source audio and the correlation of testing audio.
9. device as claimed in claim 7, it is characterised in that the correlation computations module includes the first calculating sub module or the
Two calculating sub modules;
First calculating sub module, the data of source audio are multiplied with the data of testing audio, using obtained value as
Correlation;
Second calculating sub module, the data of source audio are multiplied with the data of testing audio, multiplied value is obtained;And count
Normalized value is calculated, multiplied value is divided by with normalized value, obtained value of being divided by is regard as correlation.
10. the device as described in claim 7,8 or 9, it is characterised in that the device also includes alarm module, is placed in terminal meter
Calculate in equipment;The judge module, when judging that correlation is not more than dependent thresholds, sends alarm to the alarm module and refers to
Order;
The alarm module, receives after the alarm command from the judge module, sends failure alarm signal.
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CN105898555A (en) * | 2015-12-28 | 2016-08-24 | 乐视致新电子科技(天津)有限公司 | Audio abnormity positioning method and device |
CN107342092B (en) * | 2017-05-08 | 2020-09-08 | 深圳市创锐智汇科技有限公司 | Audio mixing system and method for automatically distributing gain |
CN107659883A (en) * | 2017-09-12 | 2018-02-02 | 中兴通讯股份有限公司 | A kind of audio system management method and device, computer-readable recording medium |
CN107808501A (en) * | 2017-09-27 | 2018-03-16 | 云南大红山管道有限公司 | Strange good pump check valve audio detection warning system and method |
CN107809615A (en) * | 2017-10-24 | 2018-03-16 | 北京声迅电子股份有限公司 | Video quality diagnostic device and method |
CN113096694B (en) * | 2019-12-23 | 2023-02-21 | 北京声智科技有限公司 | Electronic terminal and play quality detection method thereof |
CN112073888A (en) * | 2020-08-06 | 2020-12-11 | 深圳市天视通技术有限公司 | Audio testing method, system, electronic equipment and storage medium |
CN112115594A (en) * | 2020-09-06 | 2020-12-22 | 西安艾科特声学科技有限公司 | Fault detection method for secondary sound source and error microphone of cabin active noise reduction equipment |
CN113131972B (en) * | 2021-04-13 | 2022-04-15 | Oppo广东移动通信有限公司 | Method, device, electronic equipment and storage medium for receiving and transmitting audio data packet |
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