( ( Loud sounds ) ( ( become ( ( garbled and ) uncomfortable ) ) . ) )
(ROOT (S (NP (JJ Loud) (NNS sounds)) (VP (VBP become) (ADJP (JJ garbled) (CC and) (JJ uncomfortable))) (. .)))
Loud sounds become garbled and uncomfortable.
(ROOT (S (S (VP (VBN Amplified))) (, ,) (NP (PRP it)) (VP (VBZ becomes) (SBAR (S (NP (NNP louder)) (VP (VBZ happens) (VP (VB do) (NP (DT the) (NN sound)) (PP (IN during) (NP (DT a) (NN resonance)))))))) (. .)))