too long

I have used a audio autoplay system in php echo. It works. But repeating it again and again. I want to make it that it will repeat only one time. How can I solve it.

if ($rowcount >= '1'){
    echo '
    <audio autoplay>
    <source src="notification_sound.mp3">
    </audio>';
}

var sound = document.getElementById('id_given_audio_tag');
setTimeout(function(){
    sound.play();

    setTimeout(function(){
        sound.pause();
        sound.currentTime = 0;
    }, time_in_sec_it_takes_sound_to_play+1000);
}, time_in_sec_it_takes_the_sound_to_play);

hope it works