CN116863555A - Conference sign-in method based on audio watermark - Google Patents
Conference sign-in method based on audio watermark Download PDFInfo
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- CN116863555A CN116863555A CN202311132393.7A CN202311132393A CN116863555A CN 116863555 A CN116863555 A CN 116863555A CN 202311132393 A CN202311132393 A CN 202311132393A CN 116863555 A CN116863555 A CN 116863555A
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- 230000001960 triggered effect Effects 0.000 claims description 8
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
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- Audiology, Speech & Language Pathology (AREA)
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Abstract
The invention belongs to the technical field of audio processing, in particular to a conference sign-in method based on audio watermarking, which comprises the following steps: the first user sets conference information at the client through a checked-in applet, and transmits conference background audio as original audio and GPS information of a conference place to a server; the server stores the GPS information for comparison when the conference signs in, allocates an idle audio watermark code, uses the code to be inserted into the original audio through an audio watermark algorithm to form encrypted audio, and downloads the encrypted audio through a link provided by a small program after the encryption is completed by a first user. Playing the encrypted audio at the meeting place, and collecting check-in encrypted audio and GPS data by a second user; the method has the advantages that compared with the traditional image recognition method used by the two-dimensional code, the method for watermarking the audio is simple and efficient, and the requirement on signal acquisition equipment is lower.
Description
Technical Field
The invention belongs to the technical field of audio processing, and particularly relates to a conference sign-in method based on audio watermarking.
Background
With the development of smartphones and applications, meeting check-in through app and applet code scanning has become a popular choice for hosting large meetings. But there are also some problems in this,
for example, the number of two-dimension codes placed at a meeting place is too small or the size is too small, and people gather due to the size sweeping to generate a meeting place confusion.
Check-in is carried out by scanning the image two-dimensional code, and three conditions that the environment is bright, no blocking exists between the scanning equipment and the two-dimensional code and the scanning equipment and the two-dimensional code are at proper distances must be met in the scanning process. In a meeting place scene, the position where the image two-dimensional code is placed is too far away from a participant, so that scanning identification cannot be performed. During the meeting, the participant is not suitable to walk to go to the two-dimension code to sweep the code and sign in.
In a meeting scene with epidemic prevention requirements, participants should keep reasonable social safety distance as much as possible, and are not suitable to concentrate near the image two-dimensional code to perform sign-in operation.
The image two-dimensional code sign-in does not generally require GPS data, so that non-participating persons can sign in by scanning the two-dimensional code shot by the participating persons, and the reality of sign-in cannot be ensured.
Disclosure of Invention
The invention aims to solve the technical problem of providing a conference place check-in method based on audio watermarking, which solves the problem existing in check-in by scanning an image two-dimensional code.
The present invention has been achieved in such a way that,
a conference sign-in method based on audio watermarking, the method comprising:
the first user sets conference information through a checked-in applet at the client;
selecting a conference place background audio as an original audio and GPS information of a place where the conference is located to be transmitted to a server, storing the GPS information by the server for comparison when the conference is signed in, distributing an idle audio watermark code, inserting the audio watermark code into the original audio through an audio watermark algorithm to form an encrypted audio, and downloading the encrypted audio through a link provided by a small program after the encryption is completed by a first user;
playing the encrypted audio through a meeting place to serve as encrypted background audio;
a second user starts microphone recording through a check-in applet at a client, a first object is triggered, and when the first object is triggered, a part of segment encrypted background audio is recorded as check-in audio, and GPS data of equipment where the applet is operated is obtained;
transmitting the check-in audio and GPS data recording the check-in audio equipment to a server;
decrypting the check-in audio to obtain an audio watermark code, comparing the audio watermark code and corresponding GPS data with conference information registered in a server, finding conference information corresponding to the audio watermark code, and returning the conference information to a client of a second user to confirm completion of the check-in
Further, the check-in applet is provided with a conference information registration unit, the conference information registration unit corresponds to the second object, registers conference information and uploads a section of original audio after triggering the second object, allocates an unoccupied audio watermark code, encrypts the original audio into an encrypted audio with the audio watermark code through an audio watermark algorithm, and stores the encrypted audio and conference information in a server.
Further, the registered meeting information includes a meeting number, a meeting name corresponding to the meeting number, and a geographic location of the meeting.
Further, when the first object is triggered, a maximum recording duration limited by the first object is set.
Further, a database is established in the server for storing conference information, the server stores the GPS information for comparison during conference check-in, and allocates an idle audio watermark code, comprising: and comparing the number of the unexpired conferences registered by the GPS data in the database, and if the number of unexpired conferences exists in the place corresponding to the GPS data and the upper limit is not reached, assigning an unoccupied audio watermark code.
Furthermore, before decrypting the check-in audio to obtain the audio watermark code, the suffix name, the capacity and the frequency of the file formed by the check-in audio are also required to be compared.
Further, a first user sets an administrator account on the client, a server acquires meeting information associated with the administrator account and gives management authority of the associated meeting information corresponding to the administrator account, an encrypted audio file with the management authority stored in the server is downloaded through the administrator account, local equipment set in a meeting place and sound connected with the local equipment are connected, and the encrypted audio file is played through sound.
Further, the checked-in applet is developed through a WeChat applet.
Further, the first user is a conference host and the second user is a participant.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the information of the conference place check-in is added into the audio by using the audio watermark, and a participant can record the conference place audio by using a corresponding applet or app to finish the check-in. In order to ensure the authenticity of check-in, the method uses GPS data for comparison, and correct check-in information can be identified only in the correct meeting place range. Compared with the traditional image recognition method used by the two-dimensional code, the method for watermarking the audio is simple and efficient, and has lower requirements on signal acquisition equipment.
The environmental interference is small: compared with the traditional image two-dimensional code, the audio watermark is not interfered by factors such as sight shielding and the like, and is more suitable for large indoor spaces such as meeting places.
Immersive experience: the participant does not need to walk to a fixed check-in place, and check-in can be completed by recording audio at any place in the meeting place.
Region restriction: because of the introduction of GPS data, only the audio recorded by the person actually in the meeting place can complete the check-in.
Maintaining social distance: because the participant does not need to go to a specific position to sign in, the contact with other participants can be reduced, and the safe social distance is kept.
Detailed Description
The present invention will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The first user sets conference information through a checked-in applet at the client;
transmitting conference background audio as original audio and GPS information of a conference place to a server, wherein the GPS information of the conference place is obtained through GPS information acquisition of equipment of a client used by a first user, the server stores the GPS information for comparison when the conference signs in, and distributes an idle audio watermark code, the code is used for being inserted into the original audio through an audio watermark algorithm to form encrypted audio, and the first user downloads the encrypted audio through a link provided by a small program after encryption is completed;
the invention provides a conference place sign-in method based on audio watermarking, which is used for conference sign-in and is used for participants and conference sponsors, and for clients used by the participants, sign-in is carried out by the method within the time specified by the conference, and the users comprise a first user with management authority and a second user carrying out sign-in actions.
Firstly, a first user, namely a conference sponsor, sets conference information by logging in a signing-in applet at a client, selects audio to be played at a conference site, encrypts the audio as original audio and GPS information of the conference site to form encrypted audio, and transmits the encrypted audio to a server to generate the encrypted audio, wherein the encrypted audio is associated with the set conference information.
The conference information registration unit is used for registering conference information and uploading a section of original audio after triggering the second object, and distributing an unoccupied audio watermark code, encrypting the original audio into an encrypted audio with the audio watermark code through an audio watermark algorithm, and storing the encrypted audio and the conference information in a server.
The registered meeting information includes a meeting number, a meeting name corresponding to the meeting number, and a geographic location of the meeting.
The server stores the encrypted audio, downloads the encrypted audio to the local playing device of the conference through the conference host at the time before the conference is held, and plays the encrypted audio in a circulating way as the encrypted background audio.
The participant is used as a second user, logs in the signing-in applet through the mobile phone client, the initial login needs to fill in identity information and mobile phone number, after the initial login, the first object is triggered, when the first object is triggered, the microphone is started to record, the signing-in audio is collected, and GPS data of equipment where the signing-in applet is located is obtained.
The first object refers to an object which can be used for triggering on an interface, such as a virtual key, and controls the length of a recording through a long-press or start and stop setting mode, and meanwhile, the first object is provided with the longest duration.
Acquiring GPS data of equipment where the running applet is located through the applet while recording;
transmitting the recorded encrypted audio and GPS data recording the encrypted audio device to a server when the encrypted audio and the corresponding GPS data serving as background music are obtained;
for each collected encrypted audio, the server decrypts the encrypted audio to obtain an audio watermark code, compares the audio watermark code and corresponding GPS data with conference data registered in the server, finds conference information corresponding to the audio watermark, and returns the information to the client to confirm completion of sign-in.
The signing applet is provided with a conference information registration unit, the conference information registration unit is provided with permission, a host logs in through an administrator account, then opens the permission of the host, the conference information registration unit corresponds to a second object, registers conference information and uploads a section of original audio after triggering the second object, distributes an unoccupied audio watermark code, encrypts the original audio into encrypted audio with the audio watermark code through an audio watermark algorithm, and stores the encrypted audio and the conference information in a server. The registered meeting information includes a meeting number, a meeting name corresponding to the meeting number, and a geographic location of the meeting. Therefore, the server stores the latest registered conference information, and after the conference is finished, the recorded audio corresponding to the conference code is kept to the set destruction time.
A database is established in the server for storing conference information, and after the encrypted audio recorded by the second user and the corresponding GPS information are acquired, the processing is carried out in the server, wherein the specific process is as follows: the server decrypts the encrypted audio through a decryption program, obtains an audio watermark code after decryption, compares the audio watermark code and corresponding GPS data with conference data registered in the server, finds conference information corresponding to the audio watermark code, returns the information to the client to confirm completion of sign-in, and the returned conference information comprises the geographical position of the conference and the conference name corresponding to the conference number.
The method comprises the steps that an administrator account is set at a client side to be used by a first user and used for registering conference information, a server obtains conference information associated with the administrator account and gives management authority of the associated conference information corresponding to the administrator account, an audio file with the management authority and stored in the server is obtained through the administrator account, local equipment arranged in a conference place and sound connected with the local equipment are connected, and encrypted audio is played through sound.
The method is realized through the WeChat applet, and the WeChat applet for signing in is developed through the WeChat applet official SDK. In the signing-in function, microphone recording data are obtained by using a WeChat getReorderManager () interface method, parameter duration is configured to limit the maximum recording time, in the generating conference signing-in audio function, original audio needing encryption is selected by using wx.chooseMessageFile (), GPS data are obtained by using a qqmapsdk.reverseGeocoder () method, and the selected audio file and GPS data are uploaded to a server by using a wx.uploadFile () method.
The server develops an audio watermark encryption and decryption API by using a spring-boot framework, a MYSQL database, a JAVA8 running environment and a MATLAB 2020b running environment. After receiving the audio data sent by the client, the server firstly compares the suffix name, the capacity and the frequency to ensure that the audio data can be identified by an encryption and decryption algorithm, renames the audio file according to a rule and moves to a designated folder under the same directory for storage.
An encryption API for generating check-in audio is developed under the spring-boot framework. Comparing the registered geographic position with unexpired conference numbers in the database through GPS data, and if the unexpired conference number of the place does not reach the upper limit, assigning an unoccupied audio watermark code. The watermark is encoded and uploaded to an original audio file, MATLAB operation is called through an encodadioTag 2 () method provided by an audio watermark algorithm to generate an encrypted new audio file, wherein the audio watermark algorithm can be realized by adopting the existing audio watermarking data method. The new audio file is stored in the server, and the download link is stored in the database for the user to download.
And developing a decryption API for signing in a conference under a spring-boot framework, and calling MATLAB operation on a received original audio file through a decodeAudioTag2 () method provided by an audio watermarking algorithm to obtain watermark encoded data contained in the audio. Comparing the encoded data and GPS data with conference data registered in a database, finding conference information corresponding to the encoding, and returning the information to the WeChat client to confirm completion of sign-in.
And packaging the developed program into jar files and deploying the jar files to a server. The written check-in applet is issued through a WeChat official platform.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. A conference sign-in method based on audio watermarking, the method comprising:
the first user sets conference information through a checked-in applet at the client;
selecting a conference place background audio as an original audio and GPS information of a place where the conference is located to be transmitted to a server, storing the GPS information by the server for comparison when the conference is signed in, distributing an idle audio watermark code, inserting the audio watermark code into the original audio through an audio watermark algorithm to form an encrypted audio, and downloading the encrypted audio through a link provided by a small program after the encryption is completed by a first user;
playing the encrypted audio through a meeting place to serve as encrypted background audio;
a second user starts microphone recording through a check-in applet at a client, a first object is triggered, and when the first object is triggered, a part of segment encrypted background audio is recorded as check-in audio, and GPS data of equipment where the applet is operated is obtained;
transmitting the check-in audio and GPS data recording the check-in audio equipment to a server;
decrypting the check-in audio to obtain an audio watermark code, comparing the audio watermark code and corresponding GPS data with conference information registered in a server, finding conference information corresponding to the audio watermark code, and returning the conference information to a client of a second user to confirm completion of the check-in.
2. The conference place check-in method based on audio watermark according to claim 1, wherein the check-in applet is provided with a conference information registration unit, the conference information registration unit registers conference information and uploads a piece of original audio after triggering the second object, and assigns an unoccupied audio watermark code, encrypts the original audio into an encrypted audio with the audio watermark code by an audio watermark algorithm, and stores the encrypted audio and conference information in a server.
3. The audio watermark-based conference place check-in method according to claim 1, wherein the registered conference information includes a conference number, a conference name corresponding to the conference number, and a geographical position of the conference.
4. The audio watermark based conference place check-in method according to claim 1, wherein the maximum recording duration of the first object limitation is set when the first object is triggered.
5. A conference place check-in method based on audio watermarking as claimed in claim 3, wherein a database is built in the server for storing conference information, the server stores the basis of the GPS information for comparison at the time of conference check-in, and allocates an idle audio watermarking code, comprising: and comparing the number of the unexpired conferences registered by the GPS data in the database, and if the number of unexpired conferences exists in the place corresponding to the GPS data and the upper limit is not reached, assigning an unoccupied audio watermark code.
6. The audio watermark-based conference place check-in method according to claim 5, wherein before decrypting check-in audio to obtain audio watermark codes, suffix names, capacities and frequencies of files formed by the check-in audio are also compared.
7. The conference sign-in method based on audio watermarking according to claim 5, wherein a first user sets an administrator account at the client, a server obtains conference information associated with the administrator account and gives management authority of associated conference information corresponding to the administrator account, an encrypted audio file with management authority stored in the server is obtained through the administrator account, and a local device set in the conference and a sound connected with the local device are connected, and played through the sound.
8. The audio watermark-based conference place check-in method according to claim 1, wherein the check-in applet is developed by a WeChat applet.
9. The audio watermark-based conference sign-in method of claim 1, wherein the first user is a conference host and the second user is a participant.
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| CN202311132393.7A CN116863555A (en) | 2023-09-05 | 2023-09-05 | Conference sign-in method based on audio watermark |
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| CN103136806A (en) * | 2012-12-28 | 2013-06-05 | 腾讯科技（深圳）有限公司 | Method, system, scanning terminal and display terminal for sign-in based on two-dimension code |
| CN111063050A (en) * | 2019-11-28 | 2020-04-24 | 深圳市思为软件技术有限公司 | Sign-in method, device, server and storage medium |
| US20210083786A1 (en) * | 2017-12-13 | 2021-03-18 | Sonobeacon Gmbh | Efficient near-field communication based on audio signals |
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2023
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005136524A (en) * | 2003-10-28 | 2005-05-26 | Ele Kk | Group / individual meeting system |
| CN102789584A (en) * | 2012-06-15 | 2012-11-21 | 深圳市方果网络科技有限公司 | System and method for barcode attendance |
| CN103136806A (en) * | 2012-12-28 | 2013-06-05 | 腾讯科技（深圳）有限公司 | Method, system, scanning terminal and display terminal for sign-in based on two-dimension code |
| US20210083786A1 (en) * | 2017-12-13 | 2021-03-18 | Sonobeacon Gmbh | Efficient near-field communication based on audio signals |
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