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Unformatted text preview: AMATH 582 Winter Quarter 2012 Homework 2: G´ abor transforms DUE: Friday, Feb. 3, 2012 Part I In this homework, you will analyze a portion of Handel’s Messiah with time-frequency analysis. To get started, you can use the following commands (note that Handel is so highly regarded, that MATLAB has a portion of his music already in MATLAB! I can’t wait until they put in some Snoop Dog and Dre.... and for you guys, Justin Bieber): load handel v = y’/2; plot((1:length(v))/Fs,v); xlabel(’Time [sec]’); ylabel(’Amplitude’); title(’Signal of Interest, v(n)’); This code gives you plots the portion of music you will analyze. To play this back in MATLAB, you can use the following commands: p8 = audioplayer(v,Fs); playblocking(p8); This homework is rather open ended in the sense that I want you to explore the time- frequency signature of this 9 second piece of classic work. Things you should think about doing: 1. Through use of the G´ abor filtering we used in class, produce spectrograms of the piece of work.abor filtering we used in class, produce spectrograms of the piece of work....
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