怒声 is read as どせい (dosei) and means angry voice.
どせい
dosei
いかる
to be angular
いかり
anger
いからせる
to square (one's shoulders)
どなる
to shout (in anger)
どごう
angry roar
どき
どなりこむ
to storm in with a yell
おんせい
sound (e.g. of a TV)
かせい
singing voice
こえ
sound
おおごえ
loud voice
はっせい
leading a group of people (in cheering, singing, etc.)