My vocal range is G2-C5, which corresponds to 97.99 Hz – 523.2 Hz.
Which common objects have a natural frequency that is within my voice frequencies?
Answer
The natural frequency is determined by the speed of sound in the material: the harder the material, the higher the speed of sound. But the size, shape and clamping also determine the natural frequency.
You can ‘measure’ the natural frequency yourself by briefly tapping the object and listening to the frequency of the radiated sound: if it is within your vocal range, you can make it vibrate acoustically.
If you want spectacular effects, the damping in the material must also be small enough, otherwise it can too easily convert the absorbed acoustic energy into heat. So it should last for a long time.
A wine glass has a small damping and can make you vibrate spectacularly, but you will have to look for a very large glass to get a frequency below 500 Hz.
Answered by
Prof Walter Lauriks
Physics Acoustics
Old Market 13 3000 Leuven
https://www.kuleuven.be/
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