Browse Learn
Back to encyclopedia

Live entertainment

Sound pressure level

A logarithmic measure of acoustic pressure, normally expressed in decibels relative to a reference pressure.

Also known as: SPL

Reviewed

Setup

  • SPL readings depend on weighting, response speed, averaging, position, calibration, and duration; event teams use appropriate metrics for system tuning and hearing-risk management.

Venue contexts

  • Theatre, concerts, festivals, broadcast, and corporate events, as applicable

Signal flow

  • Confirm the source, patch, transport, control, and destination for the system involved.

In practice

SPL readings depend on weighting, response speed, averaging, position, calibration, and duration; event teams use appropriate metrics for system tuning and hearing-risk management.

Explore related entries

Related entries

Sources