Sound frequency is measured in hertz (Hz) and refers to the tone or pitch of the sound. Low frequency sounds are the bass sounds like a tuba where high frequency sounds are the treble sounds like a bird or cricket chirping.
Generally speaking, the lower the number, the lower the pitch of that sound. Most everyday sounds we hear fall within 250 to 6,000 Hz, though the full range of sounds a person without hearing loss can detect ranges from 20 to 20,000 Hz.
Common low frequency sounds, 500 Hz and lower, include:
- Dogs barking
- Lawn mowers
- The sound of thunder
- In speech, consonants like “j,” “u,” and “z”
Common high frequency, above 2000 Hz, sounds include:
- Birds chirping
- A child’s squeal
- Women's voices
- In speech, consonants like “f,” “s” and “th”