How to stop a sound in Codea?

I’m currently on remaking the classic galgame “Air”.However, when player trying to skip a conversation that plays via sound(), I can’t stop character’s voice. btw there is bgm playing via music() so I have to play the voice via sound(). Anyone have a idea?

Sound.paused = true or sound.volume = 0 sound = nil

@Luatee wow, It works. thx~