How do I get the audio to stop after x number of time

// 
    let audio = new Audio("bell.mp3")

// 

    if (minutes == 5 && seconds == 0) {
        document.querySelector("#hiddenmessage")?.classList.add("show")
        playmusic()

        setTimeout(
            () =>

                document.querySelector("#hiddenmessage")?.classList.remove("show"),
            7000
        )

    let audio = new Audio("bell.mp3")
 const playAudio = () =>{
    audio.play;
 }
// 

    if (minutes == 5 && seconds == 0) {
        document.querySelector("#hiddenmessage")?.classList.add("show")
        playAudio()

        setTimeout(
            () =>
       
                document.querySelector("#hiddenmessage")?.classList.remove("show"),
            7000
        )
       
    }

setTimeout(() => {
  audio.pause();
  document.querySelector("#hiddenmessage")?.classList.remove("show")
}, 7000);