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What does 41.2 Hz sound like?
41.2 Hz is a sub-bass frequency. It is a very deep sub-bass tone that you feel in your chest as much as hear. Small speakers struggle to reproduce it; good headphones or a subwoofer will.
A 41.2 Hz sound wave completes 41.2 cycles every second, so one cycle lasts 24.3 ms. In air at 20 °C, where sound travels at about 343 m/s, each wave is 8.33 m (27.31 ft) long; in water it stretches to 35.95 m because sound moves about 4.3 times faster there.
Musically, 41.2 Hz is almost exactly E1 (41.2 Hz) in standard A440 tuning. Doubling it to 82.4 Hz raises the pitch by one octave; halving it to 20.6 Hz lowers it by one.
Wavelength of 41.2 Hz in different materials
| Medium | Speed of sound | Wavelength |
|---|---|---|
| Air (20 °C) | 343 m/s | 8.33 m |
| Fresh water | 1,481 m/s | 35.95 m |
| Seawater | 1,500 m/s | 36.41 m |
| Helium | 1,007 m/s | 24.44 m |
| Steel | 5,960 m/s | 144.66 m |
| Glass | 5,640 m/s | 136.89 m |
Harmonics and octaves
Real instruments playing 41.2 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) | 41.2 Hz | E1 |
| 2× | 82.4 Hz | E2 |
| 3× | 123.6 Hz | B2 |
| 4× | 164.8 Hz | E3 |
| 5× | 206 Hz | G♯3 |
| 6× | 247.2 Hz | B3 |
| 7× | 288.4 Hz | D4 |
| 8× | 329.6 Hz | E4 |
Which animals can hear 41.2 Hz?
Cannot hear it
Dogs, Cats, Horses, Sheep, Pigs, Goats, Rabbits, Rats, Mice, Gerbils, Guinea pigs, Hedgehogs, Raccoons, Opossums, Chinchillas, Bats, Beluga whales, Bottlenose dolphins, Chickens, Canaries, Budgerigars (parakeets), Cockatiels, Owls, Bullfrogs, Tree frogs, Catfish, Tuna, Greater wax moths
Instruments and voices that can play 41.2 Hz
Frequently asked questions
What does 41.2 Hz sound like?
It is a very deep sub-bass tone that you feel in your chest as much as hear. Small speakers struggle to reproduce it; good headphones or a subwoofer will.
Can humans hear 41.2 Hz?
Yes. 41.2 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.
What musical note is 41.2 Hz?
41.2 Hz is almost exactly E1, which is 41.2 Hz in standard A440 tuning.
What is the wavelength of 41.2 Hz?
About 8.33 m in air at 20 °C and 35.95 m in water.
Can dogs hear 41.2 Hz?
No – dogs hear roughly 67 Hz to 45,000 Hz.