Category #1
a sound, especially one that is loud and unpleasent or that causes disturbance
Noise
the analysis of oneself, in particular one's motives and character
self-analysis
a loud, unpleasent, and prolonged noise.
Din
the examination or observation of one's own mental and emotional processes.
Introspection
a harsh discordant mixture of sounds
Cacophony
A lack of will to move, exert, or change
Omphaloskepsis
(of a person's voice) loud and powerful.
Stentorian
a deep or considered thought about something.
rumination
prolongation of a sound; resonance.
reverberation