Linked from
The 14 pages that link to Psychoacoustics, each with the reason it gives.
TimbreNarrower topic: Timbre is a perceptual judgment shaped by both acoustic cues and hearing.
SoundNarrower topic: Physical sound becomes an auditory experience through perception.
MP3Narrower topic: MP3 estimates which sound components listeners are least likely to notice.
MusicRelated: Perception helps explain why musical patterns and timbres affect listeners.