When listening to sound our hearing system is carrying out a frequency analysis, which gives us information about the sound we hearing. This allows us to tune instruments, to play music, etc.

In acoustics we use a frequency analysis to describe the characteristics of sound. In the demonstrations different sounds are presented from the daily life:
    	- fridge
	- organ pipe
	- electric guitar
	- electric guitar with distortion

For each sound, the signal is presented in the time domain and in the frequency domain.
 
