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First a couple of sound files are inspected. Particularly this  [http://www.daimi.au.dk/~jones/dsp/sounds/singlenote/Piano.ff.F3.wav single note piano sound] was used.
 
First a couple of sound files are inspected. Particularly this  [http://www.daimi.au.dk/~jones/dsp/sounds/singlenote/Piano.ff.F3.wav single note piano sound] was used.
 
Take the FFT in MATLAB, the frequency domain of the graph looks like this.
 
Take the FFT in MATLAB, the frequency domain of the graph looks like this.
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[[Image:Fft_piano.png|500px]]
 
[[Image:Fft_piano.png|500px]]

Revision as of 16:58, 28 September 2011


Audio Signal Generating and Processing Project

- Abstract -

This project is intent to analysis different musical instrument's sound, and try to create artificial musical instrument sounds to play a piece.

First, by looking at the Fourier domain, one can and measure the amplitude of each harmonics. The intention is trying to produce similar amplitude harmonic cosine functions, and mix all the waveform together to construct a simulated instrument voice.

- Procedure -

First a couple of sound files are inspected. Particularly this single note piano sound was used. Take the FFT in MATLAB, the frequency domain of the graph looks like this.


Fft piano.png

Then one can record all the amplitude of different harmonics.

Back to 2011 Fall ECE 438 Boutin

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang