Computation Profiles Overview

Several preset computation profiles, each one including a set of indicators, help to explore different aspects of sound perception and sound quality.

Note: Some computation profiles require the computation of other unselected indicators according to functional dependency.


Computation profile	Description	Application
Standard Levels	L_eq in dB SPL, dB A, dB B, dB C and equivalent RMS level. L_eq refers to equivalent level (the mean signal power over time on a decibel scale).	Estimating the overall sound level
Max Values	Maximum levels over time in dB SPL, dB A, dB B, and dB C. Maximum Loudness and Sharpness indicators.	Estimating the maximum sound level of time-varying sounds
Value vs Time	Levels over time in dB SPL, dB A, dB B, dB C. Loudness, Sharpness, Roughness and Tonality indicators over time.	Estimating the sound level over time of time-varying sounds
Indicators for Stationary Sounds	Loudness, Sharpness, Roughness and Tonality indicators for stationary sounds.	Studying the loudness perception of stationary sounds Studying the perception of stationary sounds
Indicators for Impulsive Sounds	Loudness of impulse sounds LMIS (sone, phon).	Studying the perception of impulse sounds
Indicators for Non-Stationary Sounds	Loudness, Sharpness, Roughness and Tonality indicators for non-stationary sounds.	Studying the perception of non-stationary sounds
Tonality	Various Tonality indicators.	Studying the perception of tones in complex sounds
Intelligibility	Articulation indicators.	Studying the Perception of Human Speech
Comfort Equations	Loudness, Sharpness, Roughness, Customizable polynomial Comfort Equation and Psychoacoustic Annoyance.	Studying annoyance perception
Aeronautic Indicators	Levels in dB G, dB PSIL, dB SIL3, dB SIL4.	Studying cabin noise
EPNL Helicopter	Perceived Noise Level indicators.	Studying the perception of exterior aircraft sounds
EPNL Aeroplane	Perceived Noise Level indicators.	Studying the perception of exterior aircraft sounds