Sound Wavelength and Loudness
  • Aug 12, 2020

Sound Wavelength and Loudness

Loudness is purely the strength of the sound wave - known as its amplitude.

Amplitude

The loudness you perceive is a mix of perception and psychology.

Decibels (dB) are a measure of the level of sound. Decibels operate on a logarithmic scale (not linear).

Hence an increase in 10 db will roughly sound twice as loud.

A high pitch sound will vibrate at a higher level eg 8000hz will vibrate at 8000 times per second.

Sounds are what we hear when something causes air to vibrate. The human ear can hear air vibrations as sound if they vibrate at frequencies between 20 and 20,000 hertz.

Is there such a thing as a super hearer?

Sound moves in waves which never get stronger - so when you are closer to the sound source it is louder.

The environment can interfere with sound waves - which is why the accustics of a room can help you hear better.

You may view the Audiogram below and notice it uses the same measurements as sound.

However what is particularly alarming is a small drop of say 10 dB has quite an effect on our hearing.

Understanding your audiogram

Our ears can be damaged by prolonged exposure to loud sounds.

Sound-Levels-Decibels

"But the bad news is that the physiology mechanisms that give us this amazing ability are very fragile, so loud noise exposure, or certain types of brief loud sounds, like explosions, can irreversibly damage those inner hair cells of the ear."

"Once they're damaged they don't regenerate and that's why you have general decay of hearing as you get older."

Is there such a thing as a super hearer?

Tags

Other Articles

20/10/2020 Deep Listening »
08/10/2020 Over-the-Counter hearing aids »
08/09/2020 Hear Better than Anyone in the Room »
03/03/2020 Localisation - identifying where sound comes from »
10/02/2020 Sudden Deafness »
17/12/2019 Hearing Better in Meetings »
09/12/2019 Can meditation improve hearing? »
18/11/2019 Over 50s »
30/10/2019 Wireless Hearing Aids »
07/10/2019 Cleaning and Maintaining Hearing Aids »
15/05/2019 Changing Attitudes to Hearing Aids »
09/04/2019 What is the process for buying a hearing aid? »
06/02/2019 One Hearing Aid or Two? »
31/01/2019 Hearing Aid Cost Breakthrough 2019 »
29/08/2017 Hearing Aid Future is Here »
09/06/2017 ABC Checkout Warns on Hearing Aid Purchases »
13/04/2017 Listening better in a noisy world »
21/02/2017 Hearing augmentation devices - IQBuds »
08/12/2016 Childrens Hearing Linked to Social Disadvantage »
24/10/2016 Hearing with Less Effort »
25/01/2016 Seven Thousand Ways to Listen »
01/10/2015 Hearing Loss and Dementia »
06/03/2015 Myth: Hearing Aids do not work »
03/12/2014 ABC Background Briefing Hearing Aids »
20/11/2014 Buying a hearing aid for your parents »
11/09/2014 Tinnitus who has it and why? »
17/01/2014 Is Bluetooth making costly Hearing Aids redundant? »
13/01/2014 Research Online and Save »
08/10/2013 Phonak Q10 Hearing Aid Review »
13/05/2013 Is anyone listening to you »
12/04/2013 Hearing Aid Repairs »
05/04/2013 Will I benefit from a hearing aid? »
18/03/2013 Compare Hearing Aids »
13/03/2013 Audiologists are now mobile »
08/03/2013 Hearing and your work prospects »
18/12/2012 Hearing and your baby »
13/12/2012 Occlusion effect when wearing hearing aids »
24/10/2012 Hearing Aid Brands in Australia »
18/10/2012 ReSound Verso »
03/10/2012 Waterproof Hearing Aids »
28/05/2012 Music to your ears »
19/02/2012 Donate hearing aids that are no longer needed »
31/01/2012 An Invisible Hearing Aid »
26/11/2011 Who to see for sudden hearing loss »
03/11/2011 Restore your hearing or use aids »
13/09/2011 Not wearing your hearing aids »
29/08/2011 Audiologists Career Path »
26/08/2011 Bluetooth Hearing Devices »

Hearing Aid Referral

Get the best price and care from our network of professionals

FREE/no obligation

  • Great Care
  • Major Brands
Continue
Recent Facebook Posts

Hearing Aid Brands in Australia

Phonak Hearing Aids
Oticon Hearing Aids
Resound Hearing Aids
Siemens Hearing Aids
Sonic Innovations Hearing Aids
Starkey Hearing Aids
Widex Hearing Aids
Unitron Hearing Aids