How to pronounce 開聲 in Cantonese (4 out of 5):

可以開聲嗎?
Can I hear you?

Cantonese Sentence Breakdown

可以 ho2 ji5
(adjective) so so
開聲 hoi1 seng1
to speak out; to request; the act of "opening" the voice before singing
maa5
morphine