JavaScript - Cambiar valor input automaticamente

<input hidden="" id="inp" type="text hidden" value="YES" />

<script type="text/javascript">

function checkInputValue(){

var files = { "YES": "audio/timbre.mp3", "NO": "audio/***.mp3" };

var sound = new Audio( files[ $('#inp').val() ] );

sound.play();

}

checkInputValue();

setTimeout(function(){

    document.getElementById("inp").value = "NO";

}, 2000)

</script>

<input id="inp" type="text" value="YES" hidden/>

    <script type="text/javascript">

        (function(){

            var input = document.getElementById('inp');

            var sound = null;

            function checkInputValue() {

                var files = { 'YES': 'audio.mp3' };

                sound = new Audio(files[input.value]);

                sound.play();

            }

            checkInputValue();

            setTimeout(function () {

                input.value = 'NO';

                sound.pause(); // pauso el audio

            }, 2000);

        })();

    </script>

<input id="inp" type="text" value="YES"/>

    <script type="text/javascript">

        (function(){

            var input = document.getElementById('inp');

            var sound = null;

            input.addEventListener('blur', e => {

                if (e.target.value === 'NO')

                    sound.pause();

            })

            function checkInputValue() {

                var files = { 'YES': 'audio.mp3' };

                sound = new Audio(files[input.value]);

                sound.play();

            }

            checkInputValue();

            setTimeout(function () {

                input.focus();

                input.value = 'NO';

                input.blur();

            }, 2000);

        })();

    </script>