Elenco Upgrade Kit SC500 to SC750 - Manual (Page 112)

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If continuing from the previous experiment then close the Winscope
program and run it again, to reset the settings. Then use the mouse
to set the scale to 1:1 mode. Click on the On-Line button to activate.
You should see a waveform similar to that shown here, but it will be
constantly changing as the music or talking you hear is changing.
Try tuning the adjustable capacitor (snap part CV) to different radio
stations and compare the waveforms.
This shows you what talking or music look like in electrical form.
Every word that every person says looks different, though there are
many patterns. The waveform will be fuzzier if there is lots of static
on the station. Here are some other examples of talking and music
using the same settings above:
On-Line button 1:1 mode
Click on the FFT button to look at the frequency spectrum. Set the
time scale (really frequency scale in FFT mode) and amplitude
scale to be as shown here.
You should see a spectrum similar to that shown here, but it will be
constantly changing as the music or talking you hear is changing.
Try tuning the adjustable capacitor (snap part CV) to different radio
stations and compare the waveforms.
This shows you the frequency spectrum of talking or music. Every
word that every person says looks different, though there are many
patterns. The spectrum will be fuzzier if there is lots of static on the
station. Here are some other examples of talking and music using
the same settings above:
FFT button Time scale Amplitude scale