HLS player sound is muffled when playbackRate is larger than 1.0

HLS player sound is muffled when playbackRate is larger than 1.0


I don't know if this problem was occured before OS 13 version up of MacOS & Safari


Implementation is here...

```

<!DOCTYPE html>


<html>

<body>

<button onclick="getPlaySpeed()" type="button">What is the playback speed?</button>

<button onclick="setPlaySpeed()" type="button">Set video to be play in lapid motion</button><br>

<video id="myVideo" width="320" height="176" controls>

<source src="https://mnmedias.api.telequebec.tv/m3u8/29880.m3u8">

</video>

<script>

var vid = document.getElementById("myVideo");

function getPlaySpeed() {

alert(vid.playbackRate);

}

function setPlaySpeed() {

vid.playbackRate = 2.0;

}

</script>

</body>

</html>

```


Source file : https://mnmedias.api.telequebec.tv/m3u8/29880.m3u8

Safari verion: 13.0.2