General acoustics

Sound waves develop in a compressible medium, such as air, when there are very short variations in pressure. A sound is what the ear perceives from this fluctuation. If the wave created by a [...]

Sound is a mechanical wave, which means that it needs support to propagate (air), unlike electromagnetic waves that can propagate in a vacuum. It also means that sound is subject to changes in [...]

First of all, a dB (decibel) is a ratio between two quantities that has been reported on a logarithmic scale. Moreover, dB allows a realistic modelling of human auditory perception, since the ear [...]

An acoustical engineer is an engineer who specializes in the science of sound and vibration (physics). Their primary function is the control of noise or vibration that can affect individuals, and [...]