Readings & Meanings:
A courageous voice was raised.
Everyone feels more courage when they're being cheered.
Obviously we've got a man's kanji here. Not to say that women can't be brave. I'm just saying that 勇 has 男. Also, if you use it to describe a woman, please note that your reader/listener will think of her as a little masculine.
Take care to remember the マ up top. Don't know if it has a meaning.