Project #pc14 microphone – Elenco Upgrade Kit SC500 to SC750 User Manual
Page 114
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Click on the FFT button to look at the frequency spectrum for these
signals. For best viewing set the amplitude and time scales (really
amplitude and frequency scales in FFT mode) to be as shown here.
FFT button
Amplitude scale
Time scale
Press the press switch (snap part S2) several times to step through
the eight different sounds from the space war integrated circuit.
Hold it down for a few seconds each time so you can see the
frequency spectrum representing the sound you hear.
Here are sample spectrums from some of the other sounds using
the same settings as above:
Build the circuit shown and connect the PC-interface cable to the
microphone input on your computer.
Project #PC14
Microphone
OBJECTIVE: To see what your voice looks like in electrical
form.
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