Converter
sound pressure level · Acoustics · Modern
sound pressure level
exact
- Record
- M565
- Definition quality
- Standardized
- Conversion mode
- formula
- Calculator
- Formula-based
Definition
Airborne sound pressure level is normally expressed in decibels relative to 20 micropascals.
Reference value
sound pressure level converts through a formula rather than a simple multiplier.
Modern use
Modern use is context-dependent and varies by region or measurement system.
Sources & evidence
Source tier — · confidence high