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Decibel - Wikipedia In electronics, the gains of amplifiers, attenuation of signals, and signal-to-noise ratios are often expressed in decibels The decibel originates from methods used to quantify signal loss in telegraph and telephone circuits
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What is a decibel (dB)? - RapidTables. com Decibel (Symbol: dB) is a logarithmic unit that indicates ratio or gain Decibel is used to indicate the level of acoustic waves and electronic signals The logarithmic scale can describe very big or very small numbers with shorter notation
dB: What is a decibel? - UNSW Sites dB (G) measurements use a narrow band filter that gives high weighting to frequencies between 1 and 20 Hz, and low weighting to others It thus gives large values for sounds and infrasounds that cannot readily be heard
What Are Decibels (dB)? - How-To Geek Amplitude is what we think of as the volume of a given sound, and this is expressed in decibels (dB) The frequency and amplitude of a sound are completely separate, though they both affect when a sound seems uncomfortably loud
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Decibels (dB): The Only 5 Things You (Probably) Need to Know Decibels Can Represent Large Ratios With Simple Numbers Decibels are used in several applications within the audio production industry In this section, you’ll learn how the decibel simplifies calculations and communication in audio