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What does 240 Hz sound like?
240 Hz is a bass frequency. It is a low bass tone – a warm hum similar to the low strings of a cello or bass guitar. Phone speakers reproduce it weakly; headphones work much better.
A 240 Hz sound wave completes 240 cycles every second, so one cycle lasts 4.17 ms. In air at 20 °C, where sound travels at about 343 m/s, each wave is 1.43 m (4.69 ft) long; in water it stretches to 6.17 m because sound moves about 4.3 times faster there.
Musically, 240 Hz is 49 cents below B3 (246.94 Hz) in standard A440 tuning. Doubling it to 480 Hz raises the pitch by one octave; halving it to 120 Hz lowers it by one.
Wavelength of 240 Hz in different materials
| Medium | Speed of sound | Wavelength |
|---|---|---|
| Air (20 °C) | 343 m/s | 1.43 m |
| Fresh water | 1,481 m/s | 6.17 m |
| Seawater | 1,500 m/s | 6.25 m |
| Helium | 1,007 m/s | 4.20 m |
| Steel | 5,960 m/s | 24.83 m |
| Glass | 5,640 m/s | 23.50 m |
Harmonics and octaves
Real instruments playing 240 Hz also produce harmonics at whole-number multiples of the fundamental. Their relative strength gives each instrument its timbre.
Which animals can hear 240 Hz?
Can hear it
Humans, Dogs, Cats, Horses, Cows, Sheep, Pigs, Goats, Rats, Gerbils, Guinea pigs, Raccoons, Ferrets, Chinchillas, Elephants, Bottlenose dolphins, Chickens, Budgerigars (parakeets), Owls, Bullfrogs, Tree frogs, Goldfish, Catfish, Tuna
Cannot hear it
Rabbits, Mice, Hedgehogs, Opossums, Bats, Beluga whales, Canaries, Cockatiels, Greater wax moths
Instruments and voices that can play 240 Hz
- Piano (88 keys)
- Guitar (standard tuning)
- Bass guitar (4-string)
- Violin
- Viola
- Cello
- Double bass
- Harp
- Clarinet (B♭, sounding)
- Oboe
- Bassoon
- Alto saxophone (sounding)
- Tenor saxophone (sounding)
- Trumpet (B♭, sounding)
- French horn (sounding)
- Trombone
- Tuba
- Bass voice
- Baritone voice
- Tenor voice
- Alto voice
- Mezzo-soprano voice
Frequently asked questions
What does 240 Hz sound like?
It is a low bass tone – a warm hum similar to the low strings of a cello or bass guitar. Phone speakers reproduce it weakly; headphones work much better.
Can humans hear 240 Hz?
Yes. 240 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.
What musical note is 240 Hz?
240 Hz is 49 cents below B3, which is 246.94 Hz in standard A440 tuning.
What is the wavelength of 240 Hz?
About 1.43 m in air at 20 °C and 6.17 m in water.
Can dogs hear 240 Hz?
Yes – dogs hear roughly 67 Hz to 45,000 Hz.