What does db mean in sound?

decibels (dB) is a measure of sound pressure level, usually measured relative to a reference sound pressure level, which is the sound pressure level of a sound that is perceived to be equal to a mechanical “click” at the ear of an average person. The “reference sound pressure level” is 20 µPa (microbar), which is approximately the sound pressure level produced by a whisper at a distance of 10 cm from your ear.

What does db mean in audio?

decibels (dB) is a unit of sound pressure that is a logarithmic measure of sound energy. A sound wave is usually expressed in terms of the amplitude of pressure in a given medium. The amplitude of the sound wave is the absolute maximum and absolute minimum pressure (or sound energy) that the sound wave produces. The amplitude of a sound wave is typically measured in terms of pressure in a given unit of length, typically in N/m² (newtons per square meter).

What does db mean in sound level?

dB is the acronym for “decibels”, a unit used to describe sound levels. One way to express sound levels is the decibel (dB) rating. A lower dB rating means it is quieter, and a higher rating means it is louder. Because sound is subjective, it is most commonly used in reference to human perception.

What does dB mean in sound?

dB is an abbreviation for decibel. A measure of sound intensity. A sound level of 0 dB is equivalent to the sound produced by a whisper. A sound level of 20 dB is equivalent to a normal conversation. A sound level of 140 dB is the sound produced by a jet engine at a distance of 100 meters.

What does db mean in sound system?

dB is a measure of sound pressure. One dB is one tenth of a percentage of the sound pressure level that is one decibel above absolute silence. So, a sound level of 70 dB is ten times as loud as a sound level of 6 dB.