Listen to each of the signals again by clicking on the waveform.

Click on the names below to display a larger version of the spectrograms. Scale, Piano (Fur Elise) , Whistle, Bat , Beethoven's 5th.

Can you point to features in the spectrograms that correspond to the changing tones (or pitch) in the sounds your hear?

Do you see any harmonics? Did you hear any?

Listen very carefully to the sound and try to identify as many features of the spectrogram as possible.

Compare the synthesized notes in Beethoven's Fifth to the real sounds made by the piano in Fur Elise.

MATLAB

These were generated with MATLAB. Click here to see the code that computes and displays the spectrograms.

Go back up to continue.


McClellan, Schafer, and Yoder, Signal Processing First, ISBN 0-13-065562-7.
Prentice Hall, Upper Saddle River, NJ 07458. © 2003 Pearson Education, Inc.