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What does 4,350 Hz sound like?
4,350 Hz is a presence frequency. It is a high, piercing whistle. The ear is still very sensitive here, so even quiet playback sounds loud.
A 4,350 Hz sound wave completes 4,350 cycles every second, so one cycle lasts 230 µs. In air at 20 °C, where sound travels at about 343 m/s, each wave is 7.9 cm (3.10 in) long; in water it stretches to 34.0 cm because sound moves about 4.3 times faster there.
Musically, 4,350 Hz is 33 cents below C♯8 (4.435 kHz) in standard A440 tuning. Doubling it to 8,700 Hz raises the pitch by one octave; halving it to 2,175 Hz lowers it by one.
Wavelength of 4,350 Hz in different materials
| Medium | Speed of sound | Wavelength |
|---|---|---|
| Air (20 °C) | 343 m/s | 7.9 cm |
| Fresh water | 1,481 m/s | 34.0 cm |
| Seawater | 1,500 m/s | 34.5 cm |
| Helium | 1,007 m/s | 23.1 cm |
| Steel | 5,960 m/s | 1.37 m |
| Glass | 5,640 m/s | 1.30 m |
Harmonics and octaves
Real instruments playing 4,350 Hz also produce harmonics at whole-number multiples of the fundamental. Their relative strength gives each instrument its timbre.
Which animals can hear 4,350 Hz?
Can hear it
Humans, Dogs, Cats, Horses, Cows, Sheep, Pigs, Goats, Rabbits, Rats, Mice, Gerbils, Guinea pigs, Hedgehogs, Raccoons, Ferrets, Opossums, Chinchillas, Bats, Elephants, Beluga whales, Bottlenose dolphins, Canaries, Budgerigars (parakeets), Cockatiels, Owls, Greater wax moths
Frequently asked questions
What does 4,350 Hz sound like?
It is a high, piercing whistle. The ear is still very sensitive here, so even quiet playback sounds loud.
Can humans hear 4,350 Hz?
Yes. 4,350 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.
What musical note is 4,350 Hz?
4,350 Hz is 33 cents below C♯8, which is 4.435 kHz in standard A440 tuning.
What is the wavelength of 4,350 Hz?
About 7.9 cm in air at 20 °C and 34.0 cm in water.
Can dogs hear 4,350 Hz?
Yes – dogs hear roughly 67 Hz to 45,000 Hz.