The decibel unit was first used to measure the loss in telegraphic circuits, and was named by the engineers at Bell Laboratories, in honour of Alexander Graham Bell.
A 1dB loss was the smallest noticeable decrease in loudness of the signal.
There is no lowest decibel level. Since the dB is a ratio, arbitrarily small signals may still have attached numbers such as -40dB.
Have a crack at decibel in a good encyclopedia.
The decibel is not an SI unit, though it is given definition by the appropriate International Electrotechnical Commissions.
Historically, in audiometry, 0dB was defined as the quietest sound that the average young man could hear. (who had not had deleterious noise exposure) These surveys were commonly taken by military recruitment centres, fairgrounds and so on.
Obviously, one half of the cohort could hear quieter sounds and one half could not hear quite so well.
The logarithmic unit of measurement "decibel"" is abbreviated as "dB"
decibel and richter
The Decibel was named after Alexander Graham Bell who is the inventor of the telephone and the bell is a sound known as the Decibel. The Decibel ranges from 0 to 140, with 140 being the highest.
The Iranian Rial is currently the lowest-valued currency in the world.
Hz is a measure of frequency. Decibel is a measure of loudness/volume/amplitude. The two can not be equated.
The range. Highest value minus lowest value.
The range. Highest value minus lowest value.
The ranking criteria for low poker hands are based on the lowest possible combination of cards, with the best hand being the one with the lowest value cards. The lowest hand in poker is called a "lowball" hand, and the ranking is determined by the value of the cards, with the lowest value cards being the best hand.
The lowest decibel sound that can be recorded depends on the sensitivity of the recording equipment. Generally, human hearing can detect sounds as low as 0 decibels, but specialized equipment can record even quieter sounds below 0 decibels.
The Welsh word for 'decibel' is desibel.
december, decibel, decimate, decimal, dime
The white poker chip has the lowest value.
What are the uses of DECIBEL?
Does a heart make decibels? Never heard a heart.
How do you use the word decibel in a sentence?What is decibel used for?
The abbreviation for decibel is dB.
The bell is a large unit, so a subunit, a decibel, is usually used. There is no subunit of decibel.