CN104899313A - Roll call method and system - Google Patents
Roll call method and system Download PDFInfo
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- CN104899313A CN104899313A CN201510334098.9A CN201510334098A CN104899313A CN 104899313 A CN104899313 A CN 104899313A CN 201510334098 A CN201510334098 A CN 201510334098A CN 104899313 A CN104899313 A CN 104899313A
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- recording
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- mobile phone
- audio frequency
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
- G06F16/68—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
- G06F16/683—Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually using metadata automatically derived from the content
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/10—Services
- G06Q50/20—Education
- G06Q50/205—Education administration or guidance
Abstract
The invention relates to an application method and system based on an audio fingerprint technology, in particular to a roll call method and system. Based on the audio fingerprint technology, audio fingerprints of a compression domain are extracted, fingerprints representing audio characteristics are extracted under the condition of partial decoding by excavating MDCT information in audio compression, audios to be matched are acquired, and roll call is finished. The method has the advantages of convenience, rapidness and simplicity in roll call. A device implemented based on the method facilitates administration of an administrator, and application of the device is technically supported by implementing the corresponding system, so that traditional roll call work is intelligent and automated.
Description
Technical field
The present invention relates to teaching management field, particularly a kind of rollcall method and system.
Background technology
Audio-frequency fingerprint refers to the content-based digital signature of compacting that can represent one section of important acoustic feature of music, its fundamental purpose sets up a kind of actual mechanism to compare the perception acoustical quality of two voice datas, but do not need directly larger voice data itself, but compare its corresponding usually less digital finger-print.Audio-frequency fingerprint instead of voice data itself is used to carry out retrieving the benefit that can have below:
Because finger print data amount is relatively little, the memory requirement to application and internal memory can be greatly reduced;
Fingerprint source and the most important part of the voice data sense of hearing, therefore still can carry out effective ratio pair when standing distorted signals;
Fingerprint database size compared with media database reduces a lot, can search for more efficiently.
Summary of the invention
Given this, present disclose provides a kind of application process based on audio fingerprint techniques, Apparatus and system, i.e. a kind of rollcall method, Apparatus and system, based on audio fingerprint techniques, extracting the audio-frequency fingerprint of compression domain, by excavating MDCT information during audio compression, extracting the fingerprint characterizing audio frequency characteristics when partial decoding of h, thus obtain the audio frequency that will mate, complete roll-call.
A kind of rollcall method:
Described method realizes calling the roll by following step:
S1, recording uploading: recording data is uploaded onto the server by one section of sound of roll-call person's real-time recording roll-call person;
S2, to take the fingerprint: after server side receives recording, from described recording, extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate; ;
S3, coupling: by described audio frequency be stored in the voice data of roll-call person in database in advance and compare and mate;
S4, storage: storing matching result, if matching result is for matching, then calling the roll successfully.
A kind of calling device:
Described device comprises client and service end, and described client and service end realize calling the roll by following flow process alternately:
P1, used one section of sound of client real-time recording roll-call person by roll-call person and recording data is uploaded to service end;
P2, service end receive recording from described recording, also extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate;
P3, service end by described audio frequency be stored in the voice data of roll-call person in database in advance and compare and mate;
P4, service end store matching result, if matching result is for matching, then call the roll successfully.
A kind of roll calling system:
Described system at least comprises client, is deployed in the receiver module of service end, the module that takes the fingerprint, matching module, database;
Described client is for recording one section of sound of roll-call person and recording data being uploaded to service end;
The module that takes the fingerprint described in described receiver module, for receiving after recording data at receiver module, extracts the fingerprint characterizing audio frequency characteristics in described recording data, thus obtains the audio frequency that will mate; ;
Described matching module is used for the described audio frequency that will mate to compare with the voice data of the roll-call person stored in a database in advance to mate, if the match is successful, calls the roll successfully.
The disclosure is convenient and swift, simplifies roll-call workload; Based on the device that described method realizes, facilitate gerentocratic management, and the application being embodied as device of corresponding system provides technical support, thus make traditional roll-call work intelligent, robotization.
Accompanying drawing explanation
A kind of method flow schematic diagram of rollcall method in Fig. 1 embodiment of the present disclosure;
A kind of roll calling system structural representation in Fig. 2 embodiment of the present disclosure;
Use with the acceleration transducer principle schematic in acceleration transducer mobile phone in Fig. 3 embodiment of the present disclosure.
Embodiment
In the basic embodiment of a method, provide a kind of rollcall method, described method realizes calling the roll by following step:
S1, recording uploading: recording data is uploaded onto the server by one section of sound of roll-call person's real-time recording roll-call person;
S2, to take the fingerprint: after server side receives recording, from described recording, extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate;
S3, coupling: by the described audio frequency that will mate be stored in the voice data of roll-call person in database in advance and compare and mate;
S4, storage: storing matching result, if matching result is for matching, then calling the roll successfully.
The method step flow process of above-described embodiment is see Fig. 1.
By this embodiment, by by the one section of recording having a talk about words about roll-call person of roll-call person's real-time recording, can be uploaded onto the server by wired or wireless mode.After receiving the recording of uploading at server side, extract from described recording and characterize the fingerprint of audio frequency characteristics, thus obtain the audio frequency that will mate; Then by by the described audio frequency that will mate be stored in the voice data of roll-call person in database and mate, if matched, be and call the roll successfully; Otherwise, do not arrived by roll-call person., if wired mode can not the limiting uploading time, but preferably adopting wireless mode here, can realize when there being network so wirelessly uploading in real time.
In one embodiment, providing the specific implementation obtaining the described audio frequency that will mate is based on audio fingerprint techniques, extract the audio-frequency fingerprint of compression domain, by excavating MDCT information during audio compression, extract from described recording when partial decoding of h and characterize the fingerprint of audio frequency characteristics, thus obtain the audio frequency that will mate.
Preferably, in order to accelerate the described audio frequency that will mate and be stored in the voice data of roll-call person in database in advance and to compare the speed of mating, the recording data uploaded comprises the audio frequency of recording and the time of recording, then also comprised before S3:
Confirm the time of described recording, and mate with the working time section of roll-call person, and then determine the voice data of described prior storage roll-call person in a database.
In this case, if working in some time period of roll-call person's rule, require to be shown up by roll-call person, the recording time of the recording data so uploaded is within the scope of these, so will reduce search and be stored in advance the record number of the voice data of roll-call person in database, and then accelerate matching speed.Such application scenarios the most typical teacher of being exactly attended class in certain time period, calls the roll to the student shown up.
In one embodiment, described recording has been come by the sound-recording function of mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.As long as mobile phone can be recorded and can carry out recording data and be transmitted here.
In another embodiment, described sound-recording function is called by rocking mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.What apply in this embodiment is current common intelligent machine, a kind of mobile phone that can facilitate cellie according to the adaptive adjustment screen of mobile phone change anyhow.Like this by exploitation roll-call APP, namely by when roll-call person rocks mobile phone, call sound-recording function by APP, then complete recording and data upload.For such roll-call mode be applied to teacher call the roll time, teacher can be simplified and to call the roll workload, also science and technology and conventional teaching be connected, to student with feeling of freshness, supervise student's active learning.
Thisly calling in the smart mobile phone of sound-recording function by rocking mobile phone, usually having a kind of acceleration transducer.Described acceleration transducer principle schematic as shown in Figure 3, acceleration transducer uses silicon materials to make, shake the effect of mobile phone at gravity and people under, the Seismic Mass meeting double swerve of the inside, in figure, dash area is charged sheet metal, and they can generate an electromagnetic field, the double swerve of Seismic Mass, electromagnetic field can be caused to change, thus can detect that mobile phone receives the direction of rocking and rocking.
In one embodiment based on described method, provide a kind of roll calling system, described system comprises client and service end, and described client and service end realize calling the roll by following flow process alternately:
P1, in the working time section of roll-call person, used one section of sound of client real-time recording roll-call person by roll-call person and recording data is uploaded to service end;
P2, service end receive recording from described recording, also extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate;
P3, service end by the described audio frequency that will mate be stored in the voice data of roll-call person in database in advance and compare and mate;
P4, service end store matching result, if matching result is for matching, then call the roll successfully.
Under this embodiment, described system comprises client and server, and client can be mobile phone, also can be that other has the equipment of recording and data upload function.By being carried out one section of sound of real-time recording roll-call person by roll-call person's operated client, and be uploaded to service end.Service end, after reception recording, extracts the fingerprint of sign audio frequency characteristics of recording, thus obtains the audio frequency that will mate.Again service end by the described audio frequency that will mate be stored in the voice data of roll-call person in database in advance and compare and mate, if matched, then call the roll successfully, otherwise, absent by roll-call person.
In one embodiment, providing the specific implementation obtaining the audio frequency that will mate is based on audio fingerprint techniques, extract the audio-frequency fingerprint of compression domain, by excavating MDCT information during audio compression, extract from described recording when partial decoding of h and characterize the fingerprint of audio frequency characteristics, thus obtain the audio frequency that will mate.
Preferably, in order to accelerate the described audio frequency that will mate and be stored in the voice data of roll-call person in database in advance and to compare the speed of mating, described recording data comprises the audio frequency of recording and the time of recording, then also comprised before P3:
Service end is by mating the time of recording according to the working time of roll-call person and then finding the audio data recording of storage roll-call person in a database.
By the time of recording being mated according to the working time of roll-call person and then finding the audio data recording of storage roll-call person in a database.
In this case, if working in some time period of roll-call person's rule, require to be shown up by roll-call person, the recording time of the recording data so uploaded is within the scope of these, so will reduce search and be stored in advance the record number of the voice data of roll-call person in database, and then accelerate matching speed.Such application scenarios the most typical teacher of being exactly attended class in certain time period, calls the roll to the student shown up.
In one embodiment, described recording has been come by the sound-recording function of mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.As long as mobile phone can be recorded and can carry out recording data and be transmitted here.
In another embodiment, described sound-recording function is called by rocking mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.What apply in this embodiment is current common intelligent machine, a kind of mobile phone that can facilitate cellie according to the adaptive adjustment screen of mobile phone change anyhow.Like this by exploitation roll-call APP, namely by when roll-call person rocks mobile phone, call sound-recording function by APP, then complete recording and data upload.For such roll-call mode be applied to teacher call the roll time, teacher can be simplified and to call the roll workload, also science and technology and conventional teaching be connected, to student with feeling of freshness, supervise student's active learning.
Thisly calling in the smart mobile phone of sound-recording function by rocking mobile phone, usually having a kind of acceleration transducer.Described acceleration transducer principle schematic as shown in Figure 3, acceleration transducer uses silicon materials to make, shake the effect of mobile phone at gravity and people under, the Seismic Mass meeting double swerve of the inside, in figure, dash area is charged sheet metal, and they can generate an electromagnetic field, the double swerve of Seismic Mass, electromagnetic field can be caused to change, thus can detect that mobile phone receives the direction of rocking and rocking.
In another embodiment, provide a kind of roll calling system, described system at least comprise client, be deployed in the receiver module of service end, the module that takes the fingerprint, matching module, database;
Described client, in the working time section of roll-call person, records one section of sound of roll-call person and recording is uploaded to the receiver module of service end;
The described module that takes the fingerprint, for receiving recording from receiver module, and extracts and characterizes the fingerprint of audio frequency characteristics from described recording, thus obtains the audio frequency that will mate;
Described matching module, to compare with the voice data of the roll-call person stored in a database in advance for the audio frequency that will mate and mate, if matched, then expression is called the roll successfully.
The system architecture schematic diagram of this embodiment as shown in Figure 2.
By this embodiment, by by the one section recording about roll-call person having a talk about words of roll-call person at client real-time recording, can be uploaded onto the server by wired or wireless mode.After being received the recording of uploading by receiver module at server side, the fingerprint characterizing audio frequency characteristics is extracted from described recording, thus obtain the audio frequency that will mate, then by matching module by the described audio frequency that will mate be stored in the voice data of roll-call person in database and mate, if matched, be and call the roll successfully; Otherwise, do not arrived by roll-call person., if wired mode can not the limiting uploading time, but preferably adopting wireless mode here, can realize when there being network so wirelessly uploading in real time.
In one embodiment, providing the specific implementation obtaining the described audio frequency that will mate is based on audio fingerprint techniques, extract the audio-frequency fingerprint of compression domain, by excavating MDCT information during audio compression, extract when partial decoding of h and characterize the fingerprint of audio frequency characteristics, thus obtain the audio frequency that will mate.
Preferably, in order to accelerate the described audio frequency that will mate and be stored in the voice data of roll-call person in database in advance and to compare the speed of mating, described recording data comprises the audio frequency of recording and the time of recording, then matching module also comprised before coupling audio frequency: the audio data recording carrying out the time of recording to mate and then find according to the working time of roll-call person storage roll-call person in a database.
In this case, if working in some time period of roll-call person's rule, require to be shown up by roll-call person, the recording time of the recording data so uploaded is within the scope of these, so will reduce search and be stored in advance the record number of the voice data of roll-call person in database, and then accelerate matching speed.Such application scenarios the most typical teacher of being exactly attended class in certain time period, calls the roll to the student shown up.
In one embodiment, described recording has been come by the sound-recording function of mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.As long as mobile phone can be recorded and can carry out recording data and be transmitted here.
In another embodiment, described sound-recording function is called by rocking mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.What apply in this embodiment is current common intelligent machine, a kind of mobile phone that can facilitate cellie according to the adaptive adjustment screen of mobile phone change anyhow.Like this by exploitation roll-call APP, namely by when roll-call person rocks mobile phone, call sound-recording function by APP, then complete recording and data upload.For such roll-call mode be applied to teacher call the roll time, teacher can be simplified and to call the roll workload, also science and technology and conventional teaching be connected, to student with feeling of freshness, supervise student's active learning.
Thisly calling in the smart mobile phone of sound-recording function by rocking mobile phone, usually having a kind of acceleration transducer.Described acceleration transducer principle schematic as shown in Figure 3, acceleration transducer uses silicon materials to make, shake the effect of mobile phone at gravity and people under, the Seismic Mass meeting double swerve of the inside, in figure, dash area is charged sheet metal, and they can generate an electromagnetic field, the double swerve of Seismic Mass, electromagnetic field can be caused to change, thus can detect that mobile phone receives the direction of rocking and rocking.
Above to invention has been detailed introduction, applying specific case herein and setting forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for those skilled in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a rollcall method, is characterized in that:
Described method realizes calling the roll by following step:
S1, recording uploading: in the working time section of roll-call person, uploaded onto the server recording by one section of sound of roll-call person's real-time recording roll-call person;
S2, to take the fingerprint: after server side receives recording, from described recording, extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate;
S3, coupling: the described audio frequency that will mate is compared with the voice data of the roll-call person stored in a database in advance and mates;
S4, storage: storing matching result, if matching result is for matching, then calling the roll successfully.
2. method according to claim 1, is characterized in that:
Preferably, described recording comprises the audio frequency of recording and the time of recording, then also comprised before S3:
Confirm the time of described recording, and mate with the working time section of roll-call person, and then determine the voice data of described prior storage roll-call person in a database.
3. method according to claim 1, is characterized in that:
Described recording has been come by the sound-recording function of mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.
4. method according to claim 1, is characterized in that:
Described recording has been come by the sound-recording function of mobile phone;
Described sound-recording function is called by rocking mobile phone, and described recording can be transferred to other equipment being not limited to server by described mobile phone.
5. a roll calling system, is characterized in that:
Described system comprises client and service end, and described client and service end realize calling the roll by following flow process alternately:
P1, in the working time section of roll-call person, used one section of sound of client real-time recording roll-call person by roll-call person and recording is uploaded to service end;
P2, service end receive recording from described recording, also extract the fingerprint characterizing audio frequency characteristics, thus obtain the audio frequency that will mate;
The described audio frequency that will mate is compared with the voice data of the roll-call person stored in a database in advance and is mated by P3, service end;
P4, service end store matching result, if matching result is for matching, then call the roll successfully.
6. system according to claim 5, is characterized in that:
Described recording comprises the audio frequency of recording and the time of recording, then also comprised before P3:
Service end confirms the time of described recording, and mates with the working time section of roll-call person, and then determines the voice data of described prior storage roll-call person in a database.
7. a roll calling system, is characterized in that:
Described system at least comprises client, is deployed in the receiver module of service end, the module that takes the fingerprint, matching module, database;
Described client, in the working time section of roll-call person, records one section of sound of roll-call person and recording is uploaded to the receiver module of service end;
The described module that takes the fingerprint, for receiving recording from receiver module, extracting and characterizing the fingerprint of audio frequency characteristics from described recording, thus obtains the audio frequency that will mate;
Described matching module, mating for being compared with the voice data of the roll-call person stored in a database in advance by the described audio frequency that will mate, if matched, then representing and calling the roll successfully.
8. system according to claim 7, is characterized in that:
Described recording comprises the audio frequency of recording and the time of recording, and described service end also comprises and determines audio data block:
Describedly determine audio data block, for: the time confirming described recording, and mate with the working time section of roll-call person, and then determine the voice data of described prior storage roll-call person in a database.
9. system according to claim 7, is characterized in that:
Described client is mobile phone, and described recording has been come by the sound-recording function of mobile phone, and described recording can be transferred to other equipment being not limited to service end by described mobile phone.
10. system according to claim 7, is characterized in that:
Described client is mobile phone, and described recording has been come by the sound-recording function of mobile phone, and described sound-recording function is called by rocking mobile phone, and described recording can be transferred to other equipment being not limited to service end by described mobile phone.
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| CN201510334098.9A CN104899313A (en) | 2015-06-16 | 2015-06-16 | Roll call method and system |
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| CN201510334098.9A CN104899313A (en) | 2015-06-16 | 2015-06-16 | Roll call method and system |
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