Translation of "Tone" in Chinese

He doesn't realise that he's tone deaf.

他不知道他自己五音不全。

There was a sudden change in her tone.

她声调突然变了。

Did you pick up on that strange tone in his voice?

你有沒有發現他說話的語氣有點古怪？

His stern tone and loud voice belied his inner sensitivity and caring nature.

他严肃的口气和他的大声掩盖了他内心的敏感和他亲切的本质。

I'm actually relatively good at written language, but with spoken language I often can't remember the tone on some word.

其实，书面语我搞得相当好，但是口语中，我经常会记不起来某个字的音调。