CN111445742B - Vocal music teaching system based on distance education system - Google Patents
Vocal music teaching system based on distance education system Download PDFInfo
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- CN111445742B CN111445742B CN202010420149.0A CN202010420149A CN111445742B CN 111445742 B CN111445742 B CN 111445742B CN 202010420149 A CN202010420149 A CN 202010420149A CN 111445742 B CN111445742 B CN 111445742B
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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
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/0033—Recording/reproducing or transmission of music for electrophonic musical instruments
- G10H1/0041—Recording/reproducing or transmission of music for electrophonic musical instruments in coded form
- G10H1/0058—Transmission between separate instruments or between individual components of a musical system
- G10H1/0066—Transmission between separate instruments or between individual components of a musical system using a MIDI interface
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The invention relates to a vocal music teaching system based on a remote education system. The data of the teaching end is sent to the learning end through the midi format, so that the sound quality of the accompaniment can be improved to the maximum extent when the data volume of communication is greatly reduced and the sound source of the learning end is reused for playing; meanwhile, when students carry out the singing following exercise, the trained audio and midi are aligned and then transmitted to the teaching end, so that the time correspondence of teachers at the teaching end during listening is ensured, and the bidirectional zero delay of the teaching end and the learning end is realized; the volume of the teaching client and the volume of the learning client during different audio playing can be controlled independently, the problem that the audio volume is covered is solved, a teacher reduces midi sound even to listen to the dry tone of the students for singing independently, and the teaching effect which is more excellent than that of on-site teaching is achieved. In addition, the student end needs few equipment, and the learning threshold of the student is lowered.
Description
Technical Field
The invention relates to the field of music teaching, in particular to a vocal music teaching system based on a remote education system.
Background
Vocal music refers to a form of music sung by human voice. The vocal music is a melody, continuity and rhythm sound which is mainly given by the vocal cords of people and is matched with the oral cavity, the tongue and the nasal cavity to act on breath. The teaching of vocal music requires more time than other teaching. Especially when the student is required to follow the accompaniment of the teacher, if the remote teaching is performed, the delay of the network may cause the teaching to be impossible at all.
The network and information engineering discloses a remote teaching system architecture for vocal music, but the architecture only stays in the aspect of system architecture, the basic architecture is not much different from the current common teaching system, and particularly, professional contents for music are not much involved.
In the current remote teaching, some functions of demonstrating PPT or playing video files are basically added to the video communication function, and when the remote teaching is applied to vocal music teaching, on one hand, bidirectional zero delay cannot be realized, and on the other hand, the compression of audio file transmission can cause tone quality reduction and also greatly influence the teaching effect.
Disclosure of Invention
In view of the above, to solve the above problems, there is provided a vocal music teaching system based on a distance education system, including a server, a teaching client and a learning client:
the server is remotely connected with the teaching client and the learning client, so that real-time remote communication between the teaching client and the learning client is realized; the learning client stores an audio source file, midi data sent by the teaching client is transmitted to the learning client in real time to load an audio source, and the midi data is played through audio playing hardware of the learning client; and audio and video data acquired by audio and video acquisition hardware of the learning client side are sent to the teaching client side in real time and are played on audio and video playing hardware of the teaching client side.
The teaching client comprises a teaching client main control module, teaching input equipment, a teaching display, a teaching monitoring earphone, a teaching microphone, a teaching camera and a teaching memory, wherein the teaching input equipment, the teaching display, the teaching monitoring earphone, the teaching microphone, the teaching camera and the teaching memory are all connected to the teaching main control module; wherein the teaching input equipment comprises a midi keyboard, a computer keyboard and a mouse; the learning client comprises a learning display, a learning monitoring earphone, a learning microphone, a learning camera and a learning memory which are all connected to the learning client main control module;
when the teaching client-side master control module works, the teaching client-side master control module collects input signals of a midi keyboard in real time, so that a midi data stream is obtained, each group of midi data contains own time code, and all the time codes are relative; the method comprises the steps that a teaching client main control module stores a midi data stream into a teaching memory and stores the midi data stream into a midi format file; meanwhile, the master control module of the teaching client sends the midi data stream to the server, and the midi data stream is forwarded to the learning client by the server;
the learning storage of the learning client stores an audio source file, the learning client loads the audio source file to the received midi data stream after receiving the midi data stream to obtain audio data to be played, and the audio data is played through a learning monitoring earphone;
the learning client collects audio signals through the learning microphone while playing the midi data stream, then stores the learning microphone audio signals in a segmented manner, and adds the segmented audio signals to the time code of the midi data stream being played during storage, wherein the audio processing speed is high enough, so that the time dislocation of the co-shooting of the learning microphone audio signals and the midi data stream being played is less than 10 ms; the midi data streams can be synchronously loaded when the learning microphone audio signals are played, and the time delay is less than 10 ms;
the learning client sends the learning microphone audio signals stored in segments to the server, and the server sends the learning microphone audio signals to the teaching client;
the teaching client synchronously loads the midi file in the teaching memory after receiving the audio signal of the learning microphone and loads the sound source to the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and the midi data can be directly and correspondingly played when being played on the teaching client, and the time delay is less than 10 ms.
The teaching monitoring earphone of the teaching client is divided into a left sound channel and a right sound channel, wherein the left sound channel is used for playing sound sources corresponding to input signals of a midi keyboard in real time, and the right sound channel is used for playing learning microphone audio signals received by the teaching client and sound sources loaded by midi files in a teaching memory synchronously loaded; therefore, the user can be ensured to immediately hear the voice response when the midi keyboard is played, and meanwhile, the recording of the student sent back from the learning client can be loaded with the accompaniment for synchronous playing.
The teaching client can directly send the midi file pre-stored in the teaching memory to the learning client for playing without setting a midi keyboard; after the teaching client receives the audio data sent by the learning client, the midi file in the teaching memory is directly and synchronously loaded, and the sound source is loaded on the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and because the time code is added when the audio of the learning microphone is stored, the midi data can be directly and correspondingly played when played on the teaching client, and the time delay is less than 10 ms; at the moment, the left channel of the teaching monitoring earphone of the teaching client is used for playing and playing the learning microphone audio received by the teaching client, and the right channel is used for playing the sound of the midi file in the synchronously loaded teaching memory after the sound source is loaded; therefore, the recording of the student sent back from the learning client can be loaded with the midi accompaniment for synchronous playing.
The teaching camera and the teaching microphone synchronously collect audio and video signals and send the audio and video signals to the server, the audio and video signals are forwarded to the learning client by the server and are played on the learning client; the learning camera of the learning client collects video signals while collecting audio signals through the learning microphone, synchronously packages the video signals and the audio signals, sends the video signals and the audio signals to the server, and then sends the video signals and the audio signals to the teaching client through the server, so that video images of students can be synchronously seen when the teaching client plays audio of the students.
The number of the teaching client sides and the number of the learning client sides are multiple, and one teaching client side can be connected to multiple learning client sides in real time; when the teaching client receives data from different learning clients, one learning client can be selected to play, and all learning clients can be played synchronously.
The learning client has a recording function, all data during real-time communication are stored, the midi data stream and the audio collected by the learning microphone are separately stored into two files, and after the real-time communication is disconnected, the whole real-time communication process can be played back at the learning client; besides, the content of the midi data stream can be played by loading a sound source independently, and the learning microphone is used for collecting audio data again for recording.
The invention has the beneficial effects that:
the data of the teaching end is sent to the learning end through the midi format, so that the sound quality of the accompaniment can be improved to the maximum extent when the data volume of the communication is greatly reduced and the sound source of the learning end is utilized for playing; meanwhile, when students carry out the singing following exercise, the trained audio and midi are aligned and then transmitted to the teaching end, so that the time correspondence of teachers at the teaching end during listening is ensured, and the bidirectional zero delay of the teaching end and the learning end is realized; the volume of the teaching client and the volume of the learning client during different audio playing can be controlled independently, the problem that the audio volume is covered is solved, a teacher reduces midi sound even to listen to the dry tone of the students for singing independently, and the teaching effect which is more excellent than that of on-site teaching is achieved. In addition, the student end of the invention needs few devices, thereby reducing the learning threshold of students.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosed subject matter, are incorporated in and constitute a part of this specification. The drawings illustrate the implementations of the disclosed subject matter and, together with the detailed description, serve to explain the principles of implementations of the disclosed subject matter. No attempt is made to show structural details of the disclosed subject matter in more detail than is necessary for a fundamental understanding of the disclosed subject matter and various modes of practicing the same.
FIG. 1 is a schematic diagram of the overall architecture of the present invention;
FIG. 2 is a schematic diagram of a teaching client according to the present invention;
FIG. 3 is a schematic diagram of a learning client according to the present invention.
Detailed Description
The advantages, features and methods of accomplishing the same will become apparent from the drawings and the detailed description that follows.
Example 1:
with reference to fig. 1-3, a vocal music teaching system based on a distance education system includes a server, a teaching client and a learning client:
the server is remotely connected with the teaching client and the learning client, so that real-time remote communication between the teaching client and the learning client is realized; the learning client stores an audio source file, midi data sent by the teaching client is transmitted to the learning client in real time to load an audio source, and the midi data is played through audio playing hardware of the learning client; and audio and video data acquired by audio and video acquisition hardware of the learning client side are sent to the teaching client side in real time and are played on audio and video playing hardware of the teaching client side.
The teaching client comprises a teaching client main control module, teaching input equipment, a teaching display, a teaching monitoring earphone, a teaching microphone, a teaching camera and a teaching memory, wherein the teaching input equipment, the teaching display, the teaching monitoring earphone, the teaching microphone, the teaching camera and the teaching memory are all connected to the teaching main control module; wherein the teaching input equipment comprises a midi keyboard, a computer keyboard and a mouse; the learning client comprises a learning display, a learning monitoring earphone, a learning microphone, a learning camera and a learning memory which are all connected to the learning client main control module;
when the teaching client-side master control module works, the teaching client-side master control module collects input signals of a midi keyboard in real time, so that a midi data stream is obtained, each group of midi data contains own time code, and all the time codes are relative; the method comprises the steps that a teaching client main control module stores a midi data stream into a teaching memory and stores the midi data stream into a midi format file; meanwhile, the master control module of the teaching client sends the midi data stream to the server, and the midi data stream is forwarded to the learning client by the server;
the learning storage of the learning client stores an audio source file, the learning client loads the audio source file to the received midi data stream after receiving the midi data stream to obtain audio data to be played, and the audio data is played through a learning monitoring earphone;
the learning client collects audio signals through the learning microphone while playing the midi data stream, then stores the learning microphone audio signals in a segmented manner, and adds the segmented audio signals to the time code of the midi data stream being played during storage, wherein the audio processing speed is high enough, so that the time dislocation of the co-shooting of the learning microphone audio signals and the midi data stream being played is less than 10 ms; the midi data streams can be synchronously loaded when the learning microphone audio signals are played, and the time delay is less than 10 ms;
the learning client sends the learning microphone audio signals stored in segments to the server, and the server sends the learning microphone audio signals to the teaching client;
the teaching client synchronously loads the midi file in the teaching memory after receiving the audio signal of the learning microphone and loads the sound source to the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and the midi data can be directly and correspondingly played when being played on the teaching client, and the time delay is less than 10 ms.
The teaching monitoring earphone of the teaching client is divided into a left sound channel and a right sound channel, wherein the left sound channel is used for playing sound sources corresponding to input signals of a midi keyboard in real time, and the right sound channel is used for playing learning microphone audio signals received by the teaching client and sound sources loaded by midi files in a teaching memory synchronously loaded; therefore, the user can be ensured to immediately hear the voice response when the midi keyboard is played, and meanwhile, the recording of the student sent back from the learning client can be loaded with the accompaniment for synchronous playing.
The teaching client can directly send the midi file pre-stored in the teaching memory to the learning client for playing without setting a midi keyboard; after the teaching client receives the audio data sent by the learning client, the midi file in the teaching memory is directly and synchronously loaded, and the sound source is loaded on the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and because the time code is added when the audio of the learning microphone is stored, the midi data can be directly and correspondingly played when played on the teaching client, and the time delay is less than 10 ms; at the moment, the left channel of the teaching monitoring earphone of the teaching client is used for playing and playing the learning microphone audio received by the teaching client, and the right channel is used for playing the sound of the midi file in the synchronously loaded teaching memory after the sound source is loaded; therefore, the recording of the student sent back from the learning client can be loaded with the midi accompaniment for synchronous playing.
The teaching camera and the teaching microphone synchronously collect audio and video signals and send the audio and video signals to the server, the audio and video signals are forwarded to the learning client by the server and are played on the learning client; the learning camera of the learning client collects video signals while collecting audio signals through the learning microphone, synchronously packages the video signals and the audio signals, sends the video signals and the audio signals to the server, and then sends the video signals and the audio signals to the teaching client through the server, so that video images of students can be synchronously seen when the teaching client plays audio of the students.
The number of the teaching client sides and the number of the learning client sides are multiple, and one teaching client side can be connected to multiple learning client sides in real time; when the teaching client receives data from different learning clients, one learning client can be selected to play, and all learning clients can be played synchronously.
The learning client has a recording function, all data during real-time communication are stored, the midi data stream and the audio collected by the learning microphone are separately stored into two files, and after the real-time communication is disconnected, the whole real-time communication process can be played back at the learning client; besides, the content of the midi data stream can be played by loading a sound source independently, and the learning microphone is used for collecting audio data again for recording.
Example 2:
when the teacher learns, the teacher is in video connection with the students through the teaching client; at the moment, the equipment at the student end is very simple, and learning can be realized only by one mobile phone which can be connected with an earphone; the teacher end equipment can also be only a computer which can be connected with a midi keyboard; in addition, if the teacher is inconvenient to connect with the midi keyboard, teaching can be realized by directly using the midi file stored in the memory, and under the condition, the intelligent mobile phone can realize on-line high-level vocal music teaching.
The teacher plays the accompaniment through the teaching client, and the student sings along with the accompaniment at the learning client; the singing sound is sent to the teaching client, and a teacher can adjust the proportion of the accompaniment sound to the student singing sound; after singing, the teacher commenting and teaching the singing of the students according to the voice, and can also arrange homework to allow the students to repeatedly practice along with the accompaniment in the class; after the students finish the homework, the selected files are sent to the teaching client side, and the teachers can check the files.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (7)
1. The utility model provides a vocal music teaching system based on distance education system, includes server, teaching client and learning client, its characterized in that:
the server is remotely connected with the teaching client and the learning client, so that real-time remote communication between the teaching client and the learning client is realized; the learning client stores an audio source file, midi data sent by the teaching client is transmitted to the learning client in real time to load an audio source, and the midi data is played through audio playing hardware of the learning client; audio and video data acquired by audio and video acquisition hardware of the learning client side are sent to the teaching client side in real time and played on audio and video playing hardware of the teaching client side;
the teaching client comprises a teaching client main control module, teaching input equipment, a teaching display, a teaching monitoring earphone, a teaching microphone, a teaching camera and a teaching memory, wherein the teaching input equipment, the teaching display, the teaching monitoring earphone, the teaching microphone, the teaching camera and the teaching memory are all connected to the teaching main control module; wherein the teaching input equipment comprises a midi keyboard, a computer keyboard and a mouse; the learning client comprises a learning display, a learning monitoring earphone, a learning microphone, a learning camera and a learning memory which are all connected to the learning client main control module;
when the teaching client-side master control module works, the teaching client-side master control module collects input signals of a midi keyboard in real time, so that a midi data stream is obtained, each group of midi data contains own time code, and all the time codes are relative; the method comprises the steps that a teaching client main control module stores a midi data stream into a teaching memory and stores the midi data stream into a midi format file; meanwhile, the master control module of the teaching client sends the midi data stream to the server, and the midi data stream is forwarded to the learning client by the server;
the learning storage of the learning client stores an audio source file, the learning client loads the audio source file to the received midi data stream after receiving the midi data stream to obtain audio data to be played, and the audio data is played through a learning monitoring earphone;
the learning client collects audio signals through the learning microphone while playing the midi data stream, then stores the learning microphone audio signals in a segmented manner, and adds the segmented audio signals to the time code of the midi data stream being played during storage, wherein the audio processing speed is high enough, so that the time dislocation of the co-shooting of the learning microphone audio signals and the midi data stream being played is less than 10 ms; the midi data streams can be synchronously loaded when the learning microphone audio signals are played, and the time delay is less than 10 ms;
and the learning client sends the learning microphone audio signals stored in segments to the server, and the server sends the learning microphone audio signals to the teaching client.
2. A vocal music teaching system based on a distance education system according to claim 1 wherein:
the teaching client synchronously loads the midi file in the teaching memory after receiving the audio signal of the learning microphone and loads the sound source to the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and the midi data can be directly and correspondingly played when being played on the teaching client, and the time delay is less than 10 ms.
3. A vocal music teaching system based on remote education system according to claim 2 wherein:
the teaching monitoring earphone of the teaching client is divided into a left sound channel and a right sound channel, wherein the left sound channel is used for playing sound sources corresponding to input signals of a midi keyboard in real time, and the right sound channel is used for playing learning microphone audio signals received by the teaching client and sound sources loaded by midi files in a teaching memory synchronously loaded; therefore, the user can be ensured to immediately hear the voice response when the midi keyboard is played, and meanwhile, the recording of the student sent back from the learning client can be loaded with the accompaniment for synchronous playing.
4. A vocal music teaching system based on a distance education system according to claim 1 wherein:
the teaching client can directly send the midi file pre-stored in the teaching memory to the learning client for playing without setting a midi keyboard; after the teaching client receives the audio data sent by the learning client, the midi file in the teaching memory is directly and synchronously loaded, and the sound source is loaded on the midi file, so that the audio collected by the learning microphone and the midi data in the teaching memory are synchronously played on the teaching client, and because the time code is added when the audio of the learning microphone is stored, the midi data can be directly and correspondingly played when played on the teaching client, and the time delay is less than 10 ms; at the moment, the left channel of a teaching monitoring earphone of the teaching client is used for playing the audio frequency of a learning microphone received by the teaching client, and the right channel is used for playing the sound of a midi file loaded with a sound source in a teaching memory loaded synchronously; therefore, the recording of the student sent back from the learning client can be loaded with the midi accompaniment for synchronous playing.
5. A vocal music teaching system based on remote education system according to any one of claims 1-4 wherein:
the teaching camera and the teaching microphone synchronously collect audio and video signals and send the audio and video signals to the server, the audio and video signals are forwarded to the learning client by the server and are played on the learning client; the learning camera of the learning client collects video signals while the learning microphone collects audio signals, synchronously packages the video signals and the audio signals, sends the video signals and the audio signals to the server, and then sends the video signals and the audio signals to the teaching client through the server, so that video images of students can be synchronously seen when the teaching client plays audio of the students.
6. A vocal music teaching system based on remote education system according to any one of claims 1-4 wherein:
the number of the teaching client sides and the number of the learning client sides are multiple, and one teaching client side can be connected to multiple learning client sides in real time; when the teaching client receives data from different learning clients, one learning client can be selected to play, and all learning clients can be played synchronously.
7. A vocal music teaching system based on remote education system according to any one of claims 1-4 wherein:
the learning client has a recording function, all data during real-time communication are stored, the midi data stream and the audio collected by the learning microphone are separately stored into two files, and the whole real-time communication process can be played back at the learning client after the real-time communication is disconnected; besides, the content of the midi data stream can be played by a separately loaded sound source, and the learning microphone is used for collecting audio data again for recording.
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| JPH04199096A (en) * | 1990-11-29 | 1992-07-20 | Pioneer Electron Corp | Karaoke playing device |
| JPH05341793A (en) * | 1991-04-19 | 1993-12-24 | Pioneer Electron Corp | 'karaoke' playing device |
| KR0120588B1 (en) * | 1994-08-30 | 1997-10-27 | 김광호 | Disc media, and reproducing method and apparatus thereof, for karaoke system |
| CN1518730A (en) * | 2001-06-20 | 2004-08-04 | 跳蛙企业股份有限公司 | Interactive apparatus using print media |
| JP2003044043A (en) * | 2001-08-01 | 2003-02-14 | Megafusion Corp | Synchronizing controller for midi data |
| JP4677929B2 (en) * | 2006-02-28 | 2011-04-27 | ヤマハ株式会社 | Group music learning system |
| TWI410907B (en) * | 2009-12-31 | 2013-10-01 | Chunghwa Telecom Co Ltd | Video/audio teaching system |
| CN107204135A (en) * | 2017-07-20 | 2017-09-26 | 哈尔滨工业大学 | A kind of electronic organ long-distance intelligent tutoring system |
| CN108399804A (en) * | 2018-03-27 | 2018-08-14 | 河南科技学院 | A kind of intelligence music learning training device |
| CN110517554A (en) * | 2019-07-19 | 2019-11-29 | 森兰信息科技（上海）有限公司 | A kind of piano online teaching method and system, storage medium and instructional terminal |
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