 Loudness compensation

Loudness compensation is a feature used in audio processing and playback systems to adjust the equalization of sound based on the perceived loudness at different volume levels. Human hearing does not respond equally across all frequencies at low and high loudness levels; we tend to hear bass and treble frequencies less prominently when listening at lower volumes. To counteract this, loudness compensation boosts certain frequency ranges to ensure that the audio remains balanced and pleasant to listen to, even at lower sound levels.