Listening to radio or watching tv: 70 dB. Background noise at a restaurant: 60 dB. So here are some examples of noises we are all deeply familiar with: The easiest way to get a feel for decibels is by measuring real life noises. Helpful Real Life Examples of Decibel Levels It is generally accepted as the lowest threshold of human hearing, and it is the reference point by which all other sounds are compared against. Since the decibel is only a ratio, 110dB is actually a comparison to a different number: 0 SPL.Ġ SPL is the standard air pressure level of the atmosphere (20 micropascals). When we say the speakers at a rock concert are playing at 110dB, what we really mean is that they’re playing at 110dB SPL. In music, decibels are a measurement of Sound Pressure Level (SPL). Now here’s why you need to know this stuff: How Decibels Apply to Music and Sound With logarithmic numbers, each additional unit multiplies the true value of the number exponentially. If you don’t remember logarithms from back in high school physics, here’s the super simple gist of it: Decibels are LOGARITHMIC units of measurement. If you plotted these numbers on a graph, they would form a straight line.īut that’s not how it works with decibels. 
For example, 2 inches are twice as long as 1 inch, and 4 inches are twice as long as 2 inches. NEXT FACT: The decibel is not a LINEAR measurement In music, decibels are also used to measure voltage and power in your gear.
It compares the value of one number to the value of another.Īnd while those numbers typically measure sound level, it’s not always the case. How Decibels are used in Recording EquipmentįACT: The decibel is NOT a unit of loudness.Helpful Real Life Examples of Decibel Levels.NEXT FACT: The decibel is not a LINEAR measurement.FACT: The decibel is NOT a unit of loudness.
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