Sound energy is a very exiting starting point for exploring and observing natural phenomena around us. range of the humans hears are very limited range of audio spectrum, between 20Hz-15 KHz. in fact a whole range of audio exists both above and our range.
now we will explore the world of audiodible, ultrasonic, and infrasonic sound. we will investigate how to listen to high frequency sounds of animal and introduce how to sense, detect, and monitor sound.
here are planning of sound energy sensing element.
1. Amplifier sounds - the audio Amplifier.
2. electronic stetoscope.
3. underwater Hydrophone.
4. ultrasonic listener.
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