This range of hearing loss would make it hard for individuals to hear s, h or f sounds as well as the voices of women and children.
How is Sound Measured?
Sound travels in waves and is measured in frequency and amplitude.
Amplitude is the measurement of how forceful a wave is.
Measured in decibels (dB), the louder the sound is, the higher the decibel number will be. Normal conversations are measured at 65 dB.
Exposure to sound over 85 dB (busy Manchester traffic) can cause damage within 8 hours
Exposure to sound over 100 dB (a motorcycle) can cause damage within 15 minutes
Exposure to sound over 120 dB (a chain saw) can cause damage instantly
Frequency is the measurement of the number of sound vibrations in one second. Measured in hertz (Hz), a healthy ear can hear a wide range of frequencies, from very low (20 Hz) to very high (20,000 Hz).
What Sounds Should You Be Able to Hear?
8,000 Hz should be easily heard by everyone with normal hearing
12,000 Hz is hard for anyone over 50 years of age to hear
15,000 Hz is difficult for anyone over the age of 40 to hear
17,400 Hz is a frequency that only teenagers can hear. Most people over the age of 18 cannot hear this tone
Now, I’m guess most of you out there in internet land probably could not hear a majority of those above links, but that’s ok. Listening to a tone online is far from an actual hearing tests. If you are concerned about your hearing health, contact your Manchester audiologist to schedule a real hearing test today.