Frequency modulation audio demo

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Instruction Manual (German)

fm-audio-demo
Explore how frequency modulation varies the frequency depending on the source signal.

Start

Vary the DC signal value and listen how the frequency of the modulated signal changes.

Change waveform

Change the waveform of the signal generator and produce different siren sounds.

Modulate speech and music

Now select speech and music source signals. Can you understand the frequency modulated speech?

Vary the modulating signal's amplitude and thus also the frequency deviation. What is the impact on the speech intelligibility?