3. Have a listen to the signal by sending it out through the sound card and headphone by the
command “sound(f,Fs)” (Adjust the mixer output volume to have loudness as desired)
>> sound(fkr16,16e3);
>> sound(fkr4,4e3);
Then take note what you have heard and answer the question below. Also, use the
oscilloscope to display the signal output from Line Out jack, then record the waveform,
frequency, and amplitude in both cases.