CN110392301B - Method and system for automatically muting audio of multiple student terminals - Google Patents
Method and system for automatically muting audio of multiple student terminals Download PDFInfo
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- CN110392301B CN110392301B CN201910605196.XA CN201910605196A CN110392301B CN 110392301 B CN110392301 B CN 110392301B CN 201910605196 A CN201910605196 A CN 201910605196A CN 110392301 B CN110392301 B CN 110392301B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005236 sound signal Effects 0.000 claims abstract description 77
- 230000001360 synchronised effect Effects 0.000 claims abstract description 20
- 241001342895 Chorus Species 0.000 claims abstract description 14
- HAORKNGNJCEJBX-UHFFFAOYSA-N cyprodinil Chemical compound N=1C(C)=CC(C2CC2)=NC=1NC1=CC=CC=C1 HAORKNGNJCEJBX-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000000873 masking effect Effects 0.000 claims 1
- 230000033764 rhythmic process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/04—Electrically-operated educational appliances with audible presentation of the material to be studied
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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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/439—Processing of audio elementary streams
- H04N21/4396—Processing of audio elementary streams by muting the audio signal
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- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Educational Administration (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Electrically Operated Instructional Devices (AREA)
Abstract
A method and system for automatically muting audio of multiple student terminals comprises the steps of receiving sound signals transmitted by a teacher terminal and a student terminal in real time, and judging whether the current time is in the time of playing music and reading aloud according to the sound signals; if the music is in the chorus singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sound of other student terminals is subjected to automatic mute processing, namely, the student terminals can only hear the sound transmitted from the teacher terminal; and if the time is non-chorus singing and reading, transmitting the received sound to all terminals in real time for synchronous playing. According to the invention, all student terminals can only hear the sound transmitted from the teacher terminal when the music singing and reading are finished, and the system automatically recovers the function of mutual listening of the student terminals after the music singing and reading are finished. The problems that multiple student terminals are interfered with each other when singing and reading are conducted in a neat mode, and the singing and reading in the neat mode cannot be conducted with reference to the same rhythm are solved.
Description
Technical Field
The invention relates to the field of online teaching, in particular to a method and a system for automatically muting audio of multiple student terminals.
Background
With the popularization of the internet, the mode of network remote education is more and more accepted by the public, and the mode becomes one of the important supplementary forms of the conventional full-time education, and a large number of remote teaching platforms are appeared. After the long-distance teaching platform has been developed for over ten years, all the functions are relatively perfect at present, and the long-distance teaching platform plays a core role in schools, education institutions and training institutions. However, in the existing online teaching platform, a plurality of terminals listen to each other or a speaker is muted to shield other sounds, and the teaching requirement cannot be met in such a mode.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method for automatically muting audio of multiple student ends, wherein when the multiple student ends simultaneously sing songs in unison and read, all the student ends automatically mute the sounds transmitted from other student ends, only the sound transmitted from the teacher end can be heard at the moment, and the system automatically restores the function of mutual listening of the student ends after the singing in unison and the reading are finished. The problems that multiple student terminals are interfered with each other when singing and reading are conducted in a neat mode, and the singing and reading in the neat mode cannot be conducted with reference to the same rhythm are solved. The technical scheme of the invention is as follows:
as a first aspect of the present invention, a method for multi-student-side audio automatic muting, the method comprising:
receiving sound signals transmitted by a teacher terminal and a student terminal in real time, and judging whether the sound signals are in the time of playing music and reading aloud currently or not according to the sound signals;
if the music is in the same tone, singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sounds of other student terminals are subjected to automatic mute processing, namely the student terminals can only hear the sound transmitted from the teacher terminal;
and if the time is non-homogeneous singing and reading, transmitting the received sound to all terminals in real time for synchronous playing.
Further, the specific steps of judging whether the current music is in the simultaneous singing and reading time through the sound signal are as follows: when the sound waveforms of the plurality of sound signals received at the same time are the same or reach a certain similarity, the sound signals are considered to be in the time of simultaneous singing and reading; and when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, the current time is considered to be in the non-simultaneous singing and reading time.
Further, the method further comprises the step of sending the information of the current chorus singing and reading time to the student terminal if the judgment result shows that the music singing and reading time is in the chorus singing and reading time.
Furthermore, the touch screens of the student terminals and the teacher terminals display the terminal number lists of the teacher terminal and all the student terminals which are currently listening to each other, and the student terminals and the teacher terminals can actively select the terminals which need to be muted on the respective terminals through the terminal number lists, so that the sound of the terminals is shielded.
As a second aspect of the present invention, there is provided a system for multi-student side audio automatic muting, the system comprising a server, a teacher terminal, and a plurality of student terminals;
the server is used for receiving sound signals transmitted by the teacher terminal and the student terminals in real time and judging whether the sound signals are in the time of playing music and reading aloud currently or not;
if the music is in the chorus singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sound of other student terminals is subjected to automatic mute processing, namely, the student terminals can only hear the sound transmitted from the teacher terminal;
and if the time is non-homogeneous singing and reading, transmitting the received sound to all terminals in real time for synchronous playing.
Further, the server comprises a sound signal receiving module, a judging module and a sound output module;
the sound signal receiving module is used for receiving sound signals from a teacher terminal and a student terminal;
the judging module is used for judging whether the sound signals are in the singing at the same time and the reading time at present through the received sound signals, and when the sound waveforms of the sound signals received at the same time are the same or reach a certain similarity, the sound signals are judged to be in the singing at the same time and the reading time at present; and when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, determining that the sound signals are currently in the non-simultaneous singing and reading time.
The sound output module is used for outputting the received sound to other terminals, and when the judging module judges that the sound is in the time of simultaneous singing and reading, the sound output module only transmits the sound signal of the teacher terminal to the student terminal in real time for synchronous playing; and when the judging module judges that the current music singing is not performed and the current reading time is not equal to the singing reading time, transmitting the received sound to all terminals in real time for synchronous playing.
Further, the server further comprises a state prompting module, and the state prompting module is used for sending the information of the current jukebox and reading time to the student terminal when the server judges that the jukebox and reading time are currently set.
Further, student terminal and mr terminal all include shielding module, all show the terminal number list that is in the mr terminal that listens each other and all student terminals at present on the touch-sensitive screen of student terminal and mr terminal, pass through on student terminal and mr terminal on respective terminal the terminal number list initiative selection needs the terminal of silence when, shielding module shields the sound that corresponds the terminal transmission and come.
The invention has the following beneficial effects:
the invention provides a method and a system for automatically muting audio of multiple student terminals, which are characterized in that sound signals transmitted by a teacher terminal and the student terminals are received in real time, whether the sound signals are in the time of singing and reading is judged according to the received sound signals, when the multiple student terminals simultaneously sing and reading, all the student terminals automatically mute the sounds transmitted by other student terminals, only the sound transmitted by the teacher terminal can be heard at the moment, and the system automatically restores the function of mutual listening of the student terminals after the completion of singing and reading. The problems that multiple student terminals are interfered with each other when singing and reading are conducted in a neat mode, and the singing and reading in the neat mode cannot be conducted with reference to the same rhythm are solved.
Drawings
Fig. 1 is a flowchart of a method for automatically muting audio of multiple students according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, as a first embodiment of the present invention, there is provided a method for multi-student side audio automatic muting, the method including:
receiving sound signals transmitted by a teacher terminal and a student terminal in real time, and judging whether the sound signals are in the time of playing music and reading aloud currently or not according to the sound signals;
if the music is in the same tone, singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sound of other student terminals is subjected to automatic mute processing, namely, the student terminals can only hear the sound transmitted from the teacher terminal;
and if the time is non-homogeneous singing and reading, transmitting the received sound to all terminals in real time for synchronous playing.
The invention provides a method for automatically muting audio of multiple student ends, which is characterized in that sound signals transmitted by a teacher terminal and student terminals are received in real time, whether the sound signals are in the process of singing at the same time and reading at the same time is judged through the received sound signals, all the student ends automatically mute the sounds transmitted by other student ends, and only the sound transmitted by the teacher end can be heard at the moment, so that the problems that the singing at the multiple student ends and reading at the same rhythm are interfered with each other and the singing and reading at the same rhythm cannot be performed are solved, and the system automatically restores the function of mutually listening at the student ends after the singing at the same time and reading at the same time are finished.
Preferably, the judging whether the current jukebox singing and reading time is performed through the sound signal specifically includes: when the sound waveforms of the plurality of sound signals received at the same time are the same or reach a certain similarity, the sound signals are considered to be in the time of simultaneous singing and reading; and when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, the current time is considered to be in the non-simultaneous singing and reading time.
The certain similarity may be set manually, for example, may be set to 80%, and whether the similarity of the sound waveforms of the plurality of sound signals received simultaneously reaches or is higher than 80% is calculated through an existing sound similarity matching algorithm, if the similarity reaches or is higher than 80%, it is considered that the multiple sound signals are currently in the chorus singing and reading time, and if the similarity is lower than 80%, it is considered that the multiple sound signals are currently in the non-chorus singing and reading time.
Preferably, the method further comprises sending prompting information of the current singing at the chorus and reading time to the student terminal if the judgment result shows that the singing at the chorus and the reading time exists.
Preferably, the touch screens of the student terminal and the teacher terminal both display the terminal number lists of the teacher terminal and all the student terminals which are currently listening to each other, and the student terminal and the teacher terminal can actively select the terminal which needs to be muted on the respective terminals through the terminal number lists, so that the sound of the terminal is shielded.
The terminal displays a terminal number list of the teacher terminal and all the student terminals, such as the teacher terminal 1, the student terminals 2, the student terminals 3 and the like, if the sound of the student terminals 2 is not needed to be received, the student terminals 2 can be selected, and the sound of the student terminals 2 can be shielded.
As a second embodiment of the present invention, there is also provided a system for multi-student-end audio automatic muting, the system including a server, a teacher terminal, and a plurality of student terminals;
the server is used for receiving sound signals transmitted by the teacher terminal and the student terminals in real time and judging whether the sound signals are in the time of playing music and reading aloud currently or not; if the music is in the same tone, singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sounds of other student terminals are subjected to automatic mute processing, namely the student terminals can only hear the sound transmitted from the teacher terminal; and if the time is non-chorus singing and reading, transmitting the received sound to all terminals in real time for synchronous playing.
The server comprises a sound signal receiving module, a judging module and a sound output module;
the sound signal receiving module is used for receiving sound signals from a teacher terminal and a student terminal;
the judging module is used for judging whether the sound signals are in the time of singing at the same time and reading aloud currently or not through the received sound signals, and when the sound waveforms of the plurality of sound signals received at the same time are the same or reach a certain similarity, the sound signals are considered to be in the time of singing at the same time and reading aloud currently; and when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, determining that the sound signals are currently in the non-simultaneous singing and reading time.
The sound output module is used for outputting the received sound to other terminals, and when the judging module judges that the sound is in the time of chorus singing and reading, the sound output module only transmits the sound signal of the teacher terminal to the student terminal in real time for synchronous playing; and when the judging module judges that the current time is in the non-simultaneous singing and reading time, transmitting the received sound to all terminals in real time for synchronous playing.
The invention provides a multi-student-end audio automatic muting system, wherein a server receives sound signals transmitted by a teacher terminal and student terminals in real time, judges whether the sound signals are in the time of simultaneous singing and reading through the received sound signals, when the student terminals simultaneously perform the singing and reading at the same time, all the student terminals automatically mute the sounds transmitted by other student terminals, only the sound transmitted by the teacher terminal can be heard at the moment, so that the problems that the simultaneous singing and reading at the student terminals cause mutual interference and cannot be performed at the same rhythm are solved, the system automatically restores the function of mutual listening of the student terminals after the completion of the simultaneous singing and reading, wherein certain similarity can be set manually, for example, to 80%, whether the similarity of sound waveforms of the sound signals received simultaneously reaches or is higher than 80% is calculated based on the existing sound similarity matching algorithm, if the similarity is lower than 80%, the current singing and reading time is considered to be in the juke-singing and reading time, and if the similarity is lower than 80%, the current singing and reading time is considered to be in the non-juke-singing and reading time
Preferably, the server further comprises a state prompting module, and the state prompting module is used for sending the information of the current chorus singing and reading time to the student terminal when the server judges that the server is currently in chorus singing and reading time.
Preferably, the student terminal and the teacher terminal both include a shielding module, the touch screens of the student terminal and the teacher terminal both display a terminal number list of the teacher terminal and all student terminals that are currently listening to each other, and when the student terminal and the teacher terminal actively select a terminal that needs muting on their respective terminals through the terminal number list, the shielding module shields the sound transmitted from the corresponding terminal.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the subject matter of the invention is to be construed in all aspects and as broadly as possible, and all changes, equivalents and modifications that fall within the true spirit and scope of the invention are therefore intended to be embraced therein.
Claims (6)
1. A method for multi-student-side audio automatic muting, the method comprising:
receiving sound signals transmitted by a teacher terminal and a student terminal in real time, and judging whether the current time is in the time of chorus singing and reading;
if the music is in the same tone, singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sound of other student terminals is subjected to automatic mute processing, namely, the student terminals can only hear the sound transmitted from the teacher terminal;
if the time is non-homogeneous singing and reading, transmitting the received sound to all terminals in real time for synchronous playing;
wherein, judging whether the current singing is performed at the same time and the reading time through the sound signal specifically comprises the following steps: when the sound waveforms of the plurality of sound signals received at the same time are the same or reach a certain similarity, the sound signals are considered to be in the time of simultaneous singing and reading; and when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, the current time is considered to be in the non-simultaneous singing and reading time.
2. The method for multi-student audio auto-mute according to claim 1, further comprising sending information of the current time of singing at the jukebox and reading to the student terminal if the jukebox and reading time is determined.
3. The method of claim 1, wherein the touch screens of the student terminal and the teacher terminal display a list of terminal numbers of the teacher terminal and all student terminals currently listening to each other, and the student terminal and the teacher terminal can actively select a terminal to be muted from the terminal number list on their respective terminals, thereby masking the sound of the terminal.
4. The system for automatically muting the audio of the multiple student terminals is characterized by comprising a server, a teacher terminal and the multiple student terminals;
the server is used for receiving sound signals transmitted by the teacher terminal and the student terminals in real time and judging whether the sound signals are in the time of playing music and reading aloud currently or not;
if the music is in the same tone, singing and reading time; only the sound signal of the teacher terminal is transmitted to the student terminals in real time for synchronous playing, and the sound of other student terminals is subjected to automatic mute processing, namely, the student terminals can only hear the sound transmitted from the teacher terminal;
if the time is non-homogeneous singing and reading, transmitting the received sound to all terminals in real time for synchronous playing;
the server comprises a sound signal receiving module, a judging module and a sound output module;
the sound signal receiving module is used for receiving sound signals from a teacher terminal and a student terminal;
the judging module is used for judging whether the sound signals are in the singing at the same time and the reading time at present through the received sound signals, and when the sound waveforms of the sound signals received at the same time are the same or reach a certain similarity, the sound signals are judged to be in the singing at the same time and the reading time at present; when the sound waveforms of the plurality of sound signals received simultaneously are lower than a certain similarity, the sound signals are considered to be in non-simultaneous singing and reading time at present;
the sound output module is used for outputting the received sound to other terminals, and when the judging module judges that the sound is in the time of simultaneous singing and reading, the sound output module only transmits the sound signal of the teacher terminal to the student terminal in real time for synchronous playing; and when the judging module judges that the current music singing is not performed and the current reading time is not equal to the singing reading time, transmitting the received sound to all terminals in real time for synchronous playing.
5. The system for multi-student audio auto-mute according to claim 4, wherein the server further comprises a status prompt module, and the status prompt module is configured to send information of the current jukebox and reading time to the student terminal when the server determines that the current jukebox and reading time is available.
6. The system according to claim 4, wherein the student terminals and the teacher terminal each include a shielding module, the touch screens of the student terminals and the teacher terminal each display a list of terminal numbers of the teacher terminal and all student terminals currently listening to each other, and when the student terminals and the teacher terminal actively select a terminal requiring muting through the list of terminal numbers on their respective terminals, the shielding module shields sounds transmitted from the corresponding terminal.
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