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What does 705 Hz sound like?
705 Hz is a midrange frequency. It is a clear midrange tone, close to where the human ear does most of its work for speech and melody.
A 705 Hz sound wave completes 705 cycles every second, so one cycle lasts 1.42 ms. In air at 20 °C, where sound travels at about 343 m/s, each wave is 48.7 cm (1.60 ft) long; in water it stretches to 2.10 m because sound moves about 4.3 times faster there.
Musically, 705 Hz is 16 cents above F5 (698.46 Hz) in standard A440 tuning. Doubling it to 1,410 Hz raises the pitch by one octave; halving it to 352.5 Hz lowers it by one.
Wavelength of 705 Hz in different materials
| Medium | Speed of sound | Wavelength |
|---|---|---|
| Air (20 °C) | 343 m/s | 48.7 cm |
| Fresh water | 1,481 m/s | 2.10 m |
| Seawater | 1,500 m/s | 2.13 m |
| Helium | 1,007 m/s | 1.43 m |
| Steel | 5,960 m/s | 8.45 m |
| Glass | 5,640 m/s | 8.00 m |
Harmonics and octaves
Real instruments playing 705 Hz also produce harmonics at whole-number multiples of the fundamental. Their relative strength gives each instrument its timbre.
| Harmonic | Frequency | Nearest note |
|---|---|---|
| 1× (fundamental) | 705 Hz | F5 |
| 2× | 1.41 kHz | F6 |
| 3× | 2.115 kHz | C7 |
| 4× | 2.82 kHz | F7 |
| 5× | 3.525 kHz | A7 |
| 6× | 4.23 kHz | C8 |
| 7× | 4.935 kHz | D♯8 |
| 8× | 5.64 kHz | F8 |
Which animals can hear 705 Hz?
Can hear it
Humans, Dogs, Cats, Horses, Cows, Sheep, Pigs, Goats, Rabbits, Rats, Gerbils, Guinea pigs, Hedgehogs, Raccoons, Ferrets, Opossums, Chinchillas, Elephants, Bottlenose dolphins, Chickens, Canaries, Budgerigars (parakeets), Cockatiels, Owls, Bullfrogs, Tree frogs, Goldfish, Catfish, Tuna
Cannot hear it
Instruments and voices that can play 705 Hz
Frequently asked questions
What does 705 Hz sound like?
It is a clear midrange tone, close to where the human ear does most of its work for speech and melody.
Can humans hear 705 Hz?
Yes. 705 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.
What musical note is 705 Hz?
705 Hz is 16 cents above F5, which is 698.46 Hz in standard A440 tuning.
What is the wavelength of 705 Hz?
About 48.7 cm in air at 20 °C and 2.10 m in water.
Can dogs hear 705 Hz?
Yes – dogs hear roughly 67 Hz to 45,000 Hz.