Neural Network-based Vocal Play Evaluation System And Its Applications In Piano Teaching

As the emerging of piano education recent years,a number of people start to learn how to play the piano.While because of the special one-teacher-one-student mode of piano teaching,which makes piano teachers a very inadequate resource and the high tuition fee,learning this instrument becomes a luxury activity.Then teaching through multimedia software on computers turns up to be a solution.The following article is about a method how to apply software to piano teaching and solve educational difficulties(which mean traditional education through computers is just a one-way knowledge transmission that is lacking for communication) through a NN model to estimate a piano playing and guiding students in practicing.It has different factors which affect a music play,and the standard for estimating could differ from the skills of handling rhythm,expressive force, sense of music,style and etc.The process of simulating the estimation through a computer is actually to find out the symbolic logic relations between the factors which have influences on music play and the index of estimation.It has advantages on not being strict on the distribution of data,non-linear processing, and dynamic,which is quite suitable for being a math model of estimation. Moreover,the NN has got a very hard theory base.It's widely used in many other fields and has become basically advanced.And the article will try to introduce the NN math model into a piano playing estimation system.Aims of the essay:1.It states the principle of an NN,and then finds out those elements that affect playing including musical notes,rhyme,time,tune,melody and so on. Then quantize every single element to be the reference we need to input.2.Afterwards,has designed the NN model according to the estimation index which we can get with assistance from a piano teacher and his students to complete the practice of an NN.3.Introduces briefly a actuality of the piano teaching software nowadays to design a framework for this educational program.Then carries out a practice function with the song "song of joy",which is based on the NN model.And estimates the music play practice of a teacher and a student in order to test how does the model work.At the very beginning of learning playing the piano,it makes no difference for the player to practice on a function completed MIDI keyboard or a real piano keyboard.The program is written with VC++ which will be run on a win32 platform. A piano teacher and two of his students who are from YinYun Musical Instruments Shop of LiuPanShui City are invited to test the program.After comparing the result of the playing by different players,the design of the system has been proved qualified as per the entire per index.