Psychoacoustics

The Psychoacoustics module allows you to evaluate the human perception of sound on the basis of indicators calculated directly on the sound signal.

These indicators reflect elementary dimensions of sound perception, and, as a whole, provide a quantitative summary of the sound quality of any acoustic signal.

The Psychoacoustics module offers two tools:

  • The calculation of psychoacoustic indicators. The indicators are based on international standards and/or mainstream models from the scientific literature and they allow you to evaluate sound levels, loudness, sharpness, roughness, fluctuation strength, tonality, and intelligibility.

  • The loudness equalization is based either on sound levels or loudness models and it allows you to neutralize the effect of loudness. This is useful when you are interested in subtler effects that can often be easily masked by relatively small loudness variations.

Note: The psychoacoustics indicators are sound perception indicators and are therefore only relevant for acoustics signals. Consequently, the signals available from the psychoacoustics indicators window are only the ones whose unit is Pascal (Pa). If you want to calculate levels for signals in unit other than Pa, refer to Calculating Levels.