KR20020034418A - A Computer-Executable Method for Speaking Education and System for the same - Google Patents

Abstract

PURPOSE: A computer-executable method for speaking education and system for the same are provided to make a user repeatedly practice speaking education regardless of cost, time and space by using a computer connected to a web server through a network and objectively test the amount of practice in real time by an expert. CONSTITUTION: The system is executed by a web server(20) connected to many client computers through a network. The client computers include teacher computers(10) and student computers(30). The client computers include an audio data processing unit for encoding and decoding audio data. The web server includes a member authentication unit for processing member authentication using member authentication data(40), a model audio database(50) for storing model audio data of teachers, and an audio testing unit for testing the audio data received from the student computers by comparing the audio data to the model audio data.

Description

A Computer-Executable Method for Speaking Education and System for the same}

The present invention relates to a ment teaching method, and more particularly, to a ment teaching method executable by a computer using a web server connected to a plurality of member computers and a network.

Those who wish to have a career in broadcasting, for example, announcers, reporters, voice actors, MCs, performers, etc., will practice their pronunciation or ment practice, or they will be trained and tested in broadcasting-related educational institutions to get a job. In the present application, the term 'ment' is interpreted to encompass the voice announcement of the announcer, the voice read of the voice actor, the voice of the MC's program, and the acting speech of the actor. In such a practice of practice, it is usually known to imitate according to actual announcements of professional and well-known announcers, MC and the like.

However, personally practicing the practice is a matter of following the news of the media or training alone through the recording media, so there is a lot of concern for their subjective judgment and the objective evaluation is difficult because they do not receive expert advice. In addition, there is a problem that it takes a lot of time and a lot of money in order to receive training in a broadcasting-related educational institution, and there was an inconvenience of having to practice personally outside of a predetermined training period.

In addition, since broadcasting-related department education in universities and the like is biased in a theoretical direction, a practical and professional education method is required.

On the other hand, it is important for people who want to correct dialects or people who have incorrect pronunciations. It is important to repeat the practice of correct pronunciations. There was a problem that it was inconvenient to use educational institutions.

In addition, those who want to learn the correct pronunciation of the standard language based on Hangul spelling, foreigners who are not familiar with Hangul pronunciation, and those who have language disorders such as stuttering have difficulty in correcting because of the absolute lack of professional correctional institutions. There was a problem.

In order to solve the above problems, the present invention is not burdened with cost, and can practice the repetition as much as he / she wants, and can be trained anywhere without the limitation of time and space by connecting to a network using a computer. In addition, the purpose of the present invention is to provide a method and system for teaching education that can be executed on a computer connected through a network that can objectively check the amount of practice of the subject.

1 is a schematic block diagram of a preferred embodiment of the present invention.

2 is a schematic block diagram of another embodiment of the present invention;

3 is a schematic flowchart of a preferred embodiment of the present invention.

4 is a schematic flowchart of another embodiment of the present invention;

5 is a schematic flowchart of another embodiment of the present invention.

10: Instructor member computer 20: Web server

30: Student Member Computers 40: Member Database

50: Paragon Voice Database 60: Test Database

70: portable terminal 80: authentication server

According to a preferred aspect of the present invention for achieving the above object, the present invention is a system for teaching education that can be executed in a web server networked with a plurality of client computers, at least one of the plurality of client computers and the instructor member Related, at least one associated with a student member; Voice data processing means for compressing and restoring voice data by the plurality of member computers;

Member authentication means for receiving, by the web server, member authentication data requesting member authentication and processing member authentication; An exemplary voice database for storing exemplary voice data received from a client computer associated with the instructor member for each instructor member; Test voice evaluation means for transmitting selected exemplary voice data according to a selection signal from a client computer associated with the student member, and comparing the test voice data received in response with the exemplary voice data corresponding thereto in real time. You can practice as many times as you want, at any time, without any cost and duration constraints, and you can objectively evaluate your voice in real time.

According to still another aspect of the present invention, the present invention provides a voice pitch comparison unit for determining whether or not the test voice evaluating unit compares the voice heights of the respective phonemes with respect to the exemplary voice data and the test voice data. Wow; A pronunciation speed comparison unit which compares the pronunciation speeds of the phonemes with respect to the exemplary voice data and the test voice data and determines whether they match with each other; It can be evaluated more objectively to the details including his own voice, including; pronunciation accuracy comparison unit for comparing the accuracy of the pronunciation of each phoneme with respect to the exemplary voice data and the test voice data; It features.

According to another aspect of the present invention, the present invention provides a member authentication means,

And a secret code generation unit for generating a voice code copy protection secret code based on the member authentication data and adding the secret code to the exemplary voice data, thereby preventing illegal copying of the exemplary voice data provided to the student member. do.

According to still another aspect of the present invention, there is provided a teaching education system including a web server networked with a plurality of client computers, wherein at least one of the plurality of client computers is associated with an instructor member and at least one student. Associated with the member; Voice data processing means for compressing and restoring voice data by the plurality of member computers;

Member authentication means for receiving, by the web server, member authentication data requesting member authentication and processing member authentication; An exemplary voice database for storing exemplary voice data received from a client computer associated with the instructor member for each instructor member; Transmitting the selected exemplary voice data according to the selection signal from the computer associated with the student member and transmitting the test voice data received in response to the client computer associated with the instructor member to recall the evaluation data for the test voice data received in response. Test voice evaluation means for transmitting to the client computer associated with the student member; including any cost and duration constraints can be repeated at any time and any place you want and can be objectively evaluated by the expert It is characterized by being.

According to still another aspect of the present invention, the present invention provides a computer-implemented teaching method using a web server networked with a plurality of instructor member computers and a plurality of student member computers, wherein the member authentication from the student member computer is performed. Processing (A) member authentication in response to the request signal; (B) extracting and transmitting the selected exemplary voice data from the exemplary voice database in response to the exemplary voice data request signal from the student member computer; (C) receiving test voice data from the student member computer and storing it in a test database; (D) extracting and transmitting the selected test voice data from the test database in response to a test voice data request signal from the instructor member computer; Receiving the evaluation data for the test voice data from the instructor member computer and transmitting to the student member (E); including the limitation of cost and duration can be repeated as many times as desired at the desired place It is characterized by being able to objectively evaluate the voice of the expert.

According to still another aspect of the present invention, the present invention provides a computer-implemented teaching method using a web server connected to a plurality of student member computers, the member corresponding to a member authentication request signal from the student member computer. Processing (A) authentication; (B) extracting and transmitting the selected exemplary voice data from the exemplary voice database in response to the exemplary voice data request signal from the student member computer; Receiving the test voice data from the student member computer and compares in real time with the corresponding model voice data corresponding to the real-time and transmits the result; and including the cost and duration constraints at the desired place at any time You can practice as many times as you like, and you can objectively evaluate the details of your voice in real time.

According to still another aspect of the present invention, the present invention provides a computer-implemented teaching method using a web server networked with a plurality of instructor member computers and a plurality of student member computers, wherein the member authentication from the student member computer is performed. (A ') inquiring a member certificate from an authentication server connected to a network in response to the signal; (G) receiving a member authentication result and a secret code from the authentication server and transmitting an access permission signal to the student member computer; Extracting selected exemplary voice data from the exemplary voice database in response to the exemplary voice data request signal from the student member computer and adding and transmitting the secret code (B '); (C) receiving test voice data from the student member computer and storing it in a test database; (D) extracting and transmitting the selected test voice data from the test database in response to a test voice data request signal from the instructor member computer; Receiving the evaluation data for the test voice data from the instructor member computer and transmits it to the student member (E); and can be repeated as many times as you want at any time, without limitation of cost and duration. It is possible to prevent illegal copying of exemplary voice data provided to student members.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail to enable those skilled in the art to easily understand and reproduce the above-described aspects and additional aspects.

1 is a schematic block diagram of a cement education system according to an embodiment of the present invention. Referring to Figure 1 describes the use of the teaching education system as follows. The person who wants to use the announcement system connects to the web server 30 implementing the teaching method according to the present invention through a network using his personal computer. After that, as a student member to the web server 30 to register the ID and password and payment account or credit card information, and go to the service menu screen through the member authentication. Afterwards, select the exemplary voice data presented by instructor members and download them to their computers. A certain amount is paid for each download of exemplary voice data, and a payment method may be a credit card or electronic money, or a prepaid card may be used.

The exemplary voice data may include comments and pronunciation demonstrations of former and incumbent broadcasters, voice actors, and announcers who are registered as instructor members, and are input to the web server 30 in advance and stored in the exemplary voice database 50. In addition, the instructor members may transmit exemplary voice data including their voices to the web server 30 through a computer connected to the web server 30.

Student members rehearse, repeat, and practice pronunciation using exemplary voice data received from their computers. Mentor pronunciation training takes place naturally, trying to pronounce as closely as possible the model's voice data. In addition, the exemplary voice data is stored in the portable terminal 70 so that learning can be performed anywhere without being limited by space. Such a portable terminal can repeatedly play voice files of various formats such as MP3 and WAV, and can transmit and receive data through a computer and an interface such as IR, USB, and parallel port. 'S product is commercially available. Only the present invention is characterized in that the copy protection algorithm described later is added to such a known terminal, but the terminal to which such a copy protection algorithm itself is added is also commercialized in many forms.

The student member records his / her pronunciation corresponding to the exemplary voice data and transmits it to the web server 30. Instructor members have a contract with the operator who operates the ment education system according to the present invention in advance, and can upload their new ment files by accessing the instructor's web page of the web server after authentication with their ID and password. have. Test files sent by student members may be sent to instructor members via e-mail or presented to the instructor in the form of a list containing student IDs on the instructor's web page. The instructor receives the test voice data including the pronunciation of the student member, evaluates it, and transmits the evaluation data to the web server 30. This evaluation data may generally include the evaluation of the comments, and may include, for example, personal guidance of pronunciation accuracy, dialect correction, pronunciation speed, and the like. In this way, the student member can be evaluated by the expert the degree of his learning by the evaluation data notified from the web server (30).

The evaluation of the test voice data may be performed by using the test voice evaluation means existing in the web server 30 without directly evaluating the test voice data as described above. Student members can use test voice assessment tools to objectively assess their pronunciation in real time. This means of evaluation can be batch or real-time, and the batch format can be compared to the exemplary voice data for the student's entire test voice file. In addition, the evaluation information on the short and long term is presented. In the real-time progress method, when a member listens to the best comments using a headset or the like and pronounces it accordingly, information on the degree of coincidence of pronunciation, pitch of high and low, short and short, and the like is presented based on perfect match in the form of a graph. For example, negative pitches, shorts, and speeds can be displayed numerically or graphically, with the example comment '0' and an excessive '+', and a negative '-' value.

2 is a schematic block diagram of a cement education system according to another embodiment of the present invention. As shown in FIG. 1, an authentication server 80 having a configuration similar to that of FIG. 1 and processing authentication of members is connected through a network. Member authentication processing of the members may use a member authentication processing means in the web server 30, it may be processed using a separate authentication server (80). The authentication server 80 may be used to perform member authentication, payment authentication of a fee, password authentication related to security processing, and the like. Member computers 10 and 30 include hardware and software for compressing and playing back voice data. Such a system is known prior to the filing date, but briefly described, a personal computer includes, for example, an input / output device capable of outputting and inputting a voice signal such as a headset, and a voice processing card for processing a voice signal therefrom, usually a sound. Hardware known as a card. In addition, a program for compressing a voice signal input from a user using a known voice compression algorithm should be connected to a browser. Such a program may be programmed by a service provider in the form of an active-x control, and the present invention may be used. By inserting a download tag (execution tag) and a download tag on the web page according to the can be downloaded and executed to the member computer.

3 is a schematic flowchart of a preferred embodiment of the present invention. 1 and 3, the present embodiment will be described in detail with reference to the functions of the web server 30.

The web server 30 receives exemplary voice data including the comments of the instructors from the instructor member computer 10 and stores the exemplary voice data for each instructor member in the exemplary voice database 50. It is not necessary to receive via a network, but it is also possible to use a separate recording medium. When receiving a member authentication request signal for access from the student member computer 30 and inquiring it to the member database 40 to process the member authentication, the student member computer 30 is allowed to access (S1). ).

As shown in FIG. 2, it is also possible to perform member authentication using the authentication server 80. In the case of using the authentication server 80, the member authentication request signal received from the student member computer 30 is inquired by the authentication server 80, and the inquiry result is received in response to determine whether to permit access.

The student member selects the desired voice data from the instructor-specific voice data presented by the web server 30. When the exemplary voice data request signal is received from the student member computer 30, the exemplary voice data corresponding to the request signal is extracted from the exemplary voice database 50 and compressed and transmitted to the student member computer 30 (S2). . As the compression method of voice data, for example, existing MP3, AAC, WMA, etc. may be used, and any technology may be used as long as the voice data is compressed. Compressing the voice data may be omitted because it is for efficient data transmission.

The student member may decompress the exemplary voice data received by being compressed by his computer through the voice data processing means and perform repetitive learning. In addition, the exemplary voice data is stored in the portable terminal 70 so that learning can be performed anywhere without being limited by space. The student member generates test voice data in which his / her voice corresponding to the exemplary voice data is recorded, compressed, and transmitted to the web server 30 to receive the evaluation of his / her learning. Each student member is stored in the test database 60 (S3). According to a preferred aspect of the present invention, the test voice data may not be stored in the test database 60 when the test voice data is evaluated in real time by using the test voice evaluation means.

The instructor member checks whether the test voice data corresponding to his exemplary voice data exists in the web server 30 and requests the test voice data from the web server 30. When the test voice data request signal is received from the instructor member computer 10, the test voice data is compressed and transmitted to the instructor member computer 10 and waits for the response of the evaluation data (S4).

The instructor member decompresses the test voice data of the student member, listens to the evaluation data, and writes the evaluation data to the web server 30. When the web server 30 receives the evaluation data and transmits it to the student member (S5). Evaluation data may be transmitted via other means, such as the student member's email address. Evaluation data transmitted to student members may be prepared and transmitted in graphs or video images using various methods.

4 is a schematic flowchart of another embodiment of the present invention. The present embodiment is characterized in that the test voice data of the student member is evaluated by the web server 30 in a batch format and transmitted. The member authentication processing step S6, the exemplary voice data transmission step S7 and the test voice data reception step S8 are similar to the steps S1, S2 and S3 of the accompanying drawings. In the evaluation of the real-time format rather than the batch format, it is noted that the voice data transmission step and the test voice data reception step are performed by the stream transmission and reproduction method, and the web server processes them in a predetermined unit, for example, a predetermined number of voice frame units. Except for the speech processing algorithms described later, they are almost similar. Here, various forms are known in the real-time transmission technology of the voice stream through the Internet, and UDP / RTP protocols adopted by Internet phones such as H.232 are used according to the characteristics of the voice data itself rather than the data transmission protocol such as TCP / IP. It is common to transmit a voice packet by using.

The web server 30 extracts exemplary voice data corresponding to the received test voice data from the exemplary voice database 50. The test voice evaluation means of the web server 30 compares the extracted exemplary voice data with the test voice data, evaluates the result according to the match, and transmits the result to the student member (S9). The test speech evaluation means includes a speech height comparison section, a pronunciation speed comparison section and a pronunciation accuracy comparison section.

In this comparison process, it is preferable that the pronunciation speed comparison unit operates first. In the comparison of the exemplary voice data and the test voice data, the pronunciation speed comparison unit compares the pronunciation speeds of the phonemes to determine whether they match. For example, by extracting feature points from a sample block of exemplary speech data every certain time unit, e.g. every 100ms, compare the location of the feature points on the time axis with the feature points extracted from the test speech data to see if the pronunciation is faster. You can check if it is slow.

This speed of pronunciation is not only fast or slow when analyzed in detail, but also includes factors unique to each person and age, so that in reality, the entire signal in the sample block may be increased or decreased in the time axis. In this case, the comparison between the exemplary voice data and the test voice data itself is not possible, so it is necessary to first linearly match the two data between samples on the time axis. Such a technique is widely known as preprocessing for determining the degree of correspondence between standard data of a database and a phoneme to be recognized in speech recognition. For example, a dynamic time alignment method may be used in which both ends of two voices to be compared are aligned and linearly increased or decreased.

After this preprocessing, additional comparison processing is possible. In the comparison between the exemplary voice data and the test voice data, the voice height comparison unit compares the heights of the voices of the respective phonemes to determine whether they match. The high and low comparison of speech is obtained by, for example, obtaining a mean spectral distribution point of exemplary speech data for each sample block through spectral analysis using a Fourier series transform, such as FFT, on the speech data and comparing it between the exemplary speech data and the test speech data. It is possible.

The pronunciation accuracy comparator compares the accuracy of the pronunciation of each phoneme in the comparison between the exemplary speech data and the test speech data, and determines whether the phonetic speech matches. As described above, according to the development of the speech recognition technology, algorithms for various speech recognition, for example, dynamic time wrapping (DTW), hidden markov model (HMM), artificial neural network (ANN), and the like are applied to the present embodiment. It is possible. In addition, LPC filter parameters are calculated in advance for each exemplary speech sample block by applying the LPC model, LPC filter parameters are obtained from the test speech data received as input, and then the correlation is calculated by calculating the correlation between the two parameters. It is also possible.

5 is a schematic flowchart of another embodiment of the present invention. This embodiment prevents illegal duplication of exemplary voice data transmitted to student members by processing member authentication using member authentication server 80 and adding secret codes generated using member authentication data to exemplary voice data. It features. The present embodiment will be described in detail with reference to FIGS. 2 and 5 as follows.

When receiving the member authentication request signal from the student member computer 30, the member authentication is inquired to the network connected authentication server 80 (S10). Such member authentication information is generally encrypted and transmitted using a public key algorithm or a symmetric key algorithm. The authentication server 80 uses the member authentication data to generate a secret code to add to the exemplary voice data. In the case of receiving the member authentication result and the secret code from the authentication server 80 and authenticating as a member, the student member computer 30 requesting member authentication is allowed (S11). However, such a secret code may be generated in consideration of payment information, for example, credit card information, in addition to the member authentication data. The secret code is therefore changed when the member's ID or credit card number is changed, and at this time, the web server encrypts and transmits the corresponding secret code stored in the member computer 30 or the terminal 70 through a public key algorithm or the like. You should.

Extract the selected exemplary voice data from the exemplary voice database 50 according to the request signal from the student member computer 30, add the encrypted secret code to a predetermined position of the file, compress it, and transmit it to the student member computer 30. (S12). Model voice data with a secret code can be restored only by using a decryption code using the student member's authentication number. In other words, when the member computer or the terminal plays the received content file, it compares the secret code in the file with the secret code stored in its system to allow playback only if it matches and to display a copyright warning message if it does not match. do. Therefore, illegal copying of exemplary voice data can be prevented. As described above, when the web server 30 processes member authentication without using the authentication server 80, a secret code may be generated by the member authentication processing means in the web server 30.

Steps S13, S14 and S15 are the same as those of step S3, step S4 and step S5 of the accompanying drawings, which are referred to above.

The present invention can be learned by using the web server connected through the network to learn the ment without the constraints of time and space, and can significantly reduce the cost of learning the ment have.

In addition, the present invention can be repeated as many times as you want to learn, there is an effect that can be faithful to the learning of learning, by adding a secret key to the voice data provided to the member has the effect of preventing illegal copying have.

In addition, since his or her voice can be evaluated by an expert or objectively assessed through a voice evaluation means, there is an advantage in that the efficiency of learning the comment can be improved.

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that many modifications and variations are possible without departing from the spirit and scope of the invention as set forth in the claims.

Claims (7)

In a teaching education system including a web server networked with a plurality of client computers, At least one of the plurality of client computers is associated with an instructor member At least one is associated with a student member; The plurality of member computers, Speech data processing means for compressing and restoring speech data; The web server, Receive membership verification data requesting membership verification, Member authentication means for processing; Exemplary voices received from client computers associated with the instructor member An exemplary voice database for storing data for each instructor member; To a selection signal from a client computer associated with the student member. Test to send selected voice data according to and receive in response Test voice evaluation means for comparing and processing voice data with corresponding exemplary voice data; Mention education system comprising a. The method according to claim 1, The test voice evaluation means, Each of the exemplary voice data and the test voice data Speech that compares the pitch of speech for a phoneme to determine match High and low comparator; Each of the exemplary voice data and the test voice data Pronunciation speed to determine the match by comparing the pronunciation speed for phonemes A comparator; Each of the exemplary voice data and the test voice data Pronunciation to determine the match by comparing the accuracy of the pronunciation of the phoneme An accuracy comparison unit; Comment education system comprising a. The method according to claim 1 or 2, The member authentication means, Based on the membership authentication data, A secret code generator for generating and adding the same to the exemplary voice data; Mention education system further comprises. In a teaching education system including a web server networked with a plurality of client computers, At least one of the plurality of client computers includes an instructor member and Related, at least one associated with a student member; The plurality of member computers, Speech data processing means for compressing and restoring speech data; The web server, Receive membership verification data requesting membership verification, Member authentication means for processing; Exemplary voices received from client computers associated with the instructor member An exemplary voice database for storing data for each instructor member; Selected according to a selection signal from a computer associated with the student member. Test voice day that transmits exemplary voice data and is received in response The client to the client computer associated with the member The evaluation data for the test voice data received by the student Test voice assessment sent to client computers associated with the member Way; Mention education system comprising a. In a computer-implemented teaching method using a web server networked with a plurality of instructor member computers and a plurality of student member computers, (A) in response to a member authentication request signal from the student member computer Processing member authentication; (B) respond to exemplary voice data request signals from the student member computer Extracts selected exemplary voice data from the exemplary voice database Transmitting by; (C) receive test voice data from the student member computer and Storing in a test database; (D) to the test voice data request signal from the instructor member computer Corresponding test voice data selected from the test database Extracting and transmitting from the; (E) evaluating test voice data from the instructor member computer; Receiving and transmitting data to the student member; Computer-implemented mentation teaching method comprising a. In the computer-implemented teaching method using a web server networked with a plurality of student member computers, (A) in response to a member authentication request signal from the student member computer Processing member authentication; (B) respond to exemplary voice data request signals from the student member computer Extracts selected exemplary voice data from the exemplary voice database Transmitting by; (F) receiving test voice data from the student member computer and Compare and compare the corresponding exemplary voice data in real time Transmitting; Computer-implemented mentation teaching method comprising a. In a computer-implemented teaching method using a web server networked with a plurality of instructor member computers and a plurality of student member computers, (A ') network in response to a member authentication signal from the student member computer; Querying a member certificate with an authentication server connected to the server; (G) receiving a member authentication result and secret code from the authentication server and Transmitting an access permission signal to the student member computer; (B ') respond to exemplary voice data request signals from the student member computer; Extracts selected exemplary voice data from the exemplary voice database Adding and transmitting the secret code; (C) receive test voice data from the student member computer and Storing in a test database; (D) to the test voice data request signal from the instructor member computer Corresponding test voice data selected from the test database Extracting and transmitting from the; (E) evaluating test voice data from the instructor member computer; Receiving and transmitting the data to the student member; Computer-implemented mentation teaching method comprising a.