悪声[akusei] bad voice
雨声[usei] sound of rain
怨声[ensei] complaint
黄色い声[kiiroikoe] shrill voice
音声[onsei] voice

音声圧縮[onseiasshuku] voice compression
音声学[onseigaku] phonetics
仮声[kasei] falsetto
家声[kasei] honour of the family
蚊のささやくような声[kanosasayakuyounakoe] faint voice

訛る[namaru] to speak with an accent
訛声[damigoe] thick voice
転訛[tenka] corruption
国訛[kuninamari] dialect
訛伝[kaden] mistaken account

訛音[kaon] accent
訛語[kago] non-standard pronunciation
田舎訛り[inakanamari] provincial accent
訛言[kagen] non-standard pronunciation