Room Acoustics

Energy density measurements

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Energy density can be used in the calculation of most room acoustics parameters like decay time, clarity, definition, and center time. Using only p^2 as an estimation parameter often leads to errors and variation between measurement positions, as sound pressure is a place dependent quantity. Acoustic energy is a place independent quantity, thus more uniformity can be achieved by including the kinetic energy term of velocity as well. The pressure-velocity probes can be used in diffuse fields, as they are not affected by a high pressure-intensity index. This is a significant advantage over p-p intensity probes.