Sound pressure level at 1/3 octave frequency

Definition

An indicator that describes the sound pressure level in a narrower 1/3 octave frequency range. It is calculated in decibels (dB) and allows for a more precise determination of the noise distribution by frequency.

Importance and Essence

Important for detailed noise analysis, especially when it is necessary to identify specific noise sources or effects on hearing.

Where Used

In occupational health and safety assessments

In acoustic examinations

In environmental studies