Losing one's voice

лишќться [no Impf.] гћлосаg;
терїть/потерїть гћлосa
to lose one's voice
пропђсть [no Impf.]: у Ng гћлосn пропђл N lost his voice
У негћ гћрло болќт и гћлос пропђл. His throat hurts and he has lost his voice.
садќться/сљсть: у Ng гћлосn сљл N's voice is hoarse
NB The phrase у N гћлос сљл, above, describes a voice hoarse from exertion, overuse, a cold, etc.
Сегћдня у менї бІло трќ лљкции; тепљрь ї љле говорє, гћлос сљл. I gave three lectures today; now I can barely talk — my voice has gone hoarse.
срывђть/сорвђть гћлосa to strain one's voice