loudness
131hearing aid — a compact electronic amplifier worn to improve one s hearing, usually placed in or behind the ear. [1920 25] * * * Device that increases the loudness of sounds in the user s ear. Its principal components are a microphone, an amplifier, and an… …
132Music and emotion — Many scientific disciplines deal with the topic of music and emotion, including philosophy, musicology and psychology. The perspective presented here is mainly a psychological one, yet some theoretical and philosophical considerations will be… …
