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Who am I ?Hi, I’m Yves from Belgium
I’m going to give some info regarding sound frequency
Headphones recommended
Audio FrequencyPeriodic vibration
Pitch of sound
How often a wave repeats within a fixed amount of time
Measured in hertz (Hz)
Heinrich Rudolf Hertz
Human hearingHumans can hear frequencies between 20 and 20.000 Hz (20 kHz)
The older a person gets the less frequencies one can hear
Hear damage can also be caused by exposure to loud music/sound
Which ones can you hear ?
https://www.youtube.com/watch?v=H-iCZElJ8m0
Animal hearingAnimals can often hear other frequency levels and/or a wider range
Dogs: 40 Hz – 60 kHz
Cats: 55 Hz – 79 kHz
Bats: 1 kHz – 200 kHz
WavelengthSound propagates as longitudinal waves in air
But sound waves are most often represented as a transverse wave:
WavelengthThe wavelength of a sound with a 20 Hz frequency is 17 meters
This explains why you mostly hear bass (low frequency sounds) from a distance when a party/festival is going on
WavelengthA 1500 Hz frequency is more profound for humans as its wavelength fits between the ears
This is because of the interaural time difference (ITD), the difference in arrival time of a sound between two ears
Instrument frequenciesGuitar
1st string (E): 329,63 Hz
2nd string (B): 246,94 Hz
3rd string (G): 196,00 Hz
4th string (D): 146,83 Hz
5th string (A): 110,00 Hz
6th string (E): 82,41 Hz
Vocal frequency rangeSoprano: 262 Hz – 1047 Hz
Mezzo-soprano: 110 Hz – 880 Hz
Contralto: 175 Hz – 698 Hz
Tenor: 130 Hz – 523 Hz
Baritone: 87 Hz – 349 Hz
Bass: 87 Hz – 330 Hz