Web Results

Decibel - Wikipedia


The decibel (dB) is a logarithmic unit used to express the ratio of two values of a physical .... Two signals whose levels differ by one decibel have a power ratio of 10<sup>1/10</sup>, ...

Decibel (Loudness) Comparison Chart - Galen Carol Audio


Decibel (Loudness) Comparison Chart. Here are some interesting numbers, collected from a variety of sources, that help one to understand the volume levels of ...

Dangerous Decibels » How Loud is Too Loud?


Decibel Exposure Time Guidelines ... see the tabs at the bottom of the page to find sound levels for settings occupational, non-occupational, military, aircraft, etc .

Noise Level Chart: dB Levels of Common Sounds - Noise Help


A noise level chart showing examples of sounds that have dB levels ranging from 0 to 180 decibels.

Harmful Noise Levels-Topic Overview - WebMD


Following is a table of the decibel level of a number of sounds.Noise levels Noise Average decibels (dB)Leaves rustling, soft music, whisper30Average home ...

dB: What is a decibel? - School of Physics


("absolute" sound level). dB scale with some rough examples We said above that the decibel is a ratio. So, when it is ...

What is a decibel, and how is it measured? | HowStuffWorks


The decibel (abbreviated dB) is the unit used to measure the intensity of a sound. The decibel scale is a little odd because the human ear is incredibly sensitive.

Noise Comparisons - Department of Chemistry - - Purdue University


Level, comment ... Military jet aircraft take-off from aircraft carrier with afterburner at 50 ft (130 dB). 130 ... Turbo-fan aircraft at takeoff power at 200 ft (118 dB).

Decibel 10th: Professional Noise Meter on the App Store


Sep 21, 2016 ... Decibel 10th turns your iPhone, iPad and iPod touch into a professional sound meter, precisely measures the sound pressure level all around ...

Noise - American Speech-Language-Hearing Association


Noise levels are measured in decibels, or dB for short. The higher the decibel level, the louder the noise. Sounds that are louder than 85 dB can cause ...

More Info

Comparitive Examples of Noise Levels | Industrial Noise Control


Noise Source. Decibel Level. Decibel Effect. Jet take-off (at 25 meters) Recommended product: Outdoor Noise Barriers. 150. Eardrum rupture. Aircraft carrier ...

Common environmental noise levels | CHC


The following decibel levels of common noise sources are typical, but will vary. Noise levels above 140dBA can cause damage to hearing after just one ...

5 Sound levels in decibels: What is a decibel? - Alpine


A decibel dB(A) is a unit of measurement that indicates how loud a sound is. Humans can hear sounds between 0 and 140 decibels.