Musicaholics Journey end at Jakarta
As you all know, Aksara Team is the Indonesian winner of Imagine Cup 2007 Software Design Competition. But, for now I want to talk about my team application. Four of us the member of musicaholics team created an interesting software named Musicologous. Musicologous is a mobile application that enable us to learn music instrument easily and effectively without any guide from music trainer or teacher. so with musicologous you just need a PDA and also music instrument to learn music.
Our application has a special features where user can record his training session. and after records his performance, our application can analyze the sound and give the result that consists of performance accuracy and which parts are misplayed. We are using Fast Fourier Algorithm to do this. And the interesting part is we managed to do that in PDA. the analyzing diagram you can see it below :
as you can see the recording data is split into some amount of chunk and each chunk is individually processed through band bass filter (this is where the noise is being attenuated) and then the data is transformed into frequency domain with FFT algorithm. After that the data is compared against the sound that the music expert has produce. We use an expert system to do the comparison part so that our application can give the correct advice regarding the practice result.
Okay that is the simple explanation about our application. Musicaholics journey maybe end at jakarta as second place, but our application is not going to end here. We are still thinking to sell this application or to make it open as an open source application at codeplex.
ps: you can read my team journey in indonesia at my blog, krisantus blog and also retta blog