How to use JavaScript for audio and video manipulation?

JavaScript provides the HTML5 Web APIs, which include functionalities for audio and video manipulations. Here is how you may use JavaScript for audio and video manipulation:

Using audio in JavaScript:

The HTML <audio> tag is often used to embed audio content in a web page. It comes with several methods, properties, and events. The controls attribute adds audio controls, like play, pause, and volume.

Step 1: Embedding an audio file using the <audio> tag:

<audio id="myAudio" controls>
  <source src="yourMusic.mp3" type="audio/mpeg">
  Your browser does not support the audio tag.
</audio>

Step 2: JavaScript can be used to control the <audio> element. Here is an example of how to start and stop an audio using JavaScript:

<button onclick="playAudio()" type="button">Play Audio</button>
<button onclick="pauseAudio()" type="button">Pause Audio</button>

<script>
var myAudio = document.getElementById("myAudio");

function playAudio() { 
  myAudio.play(); 
} 

function pauseAudio() { 
  myAudio.pause(); 
} 
</script>

Using video in JavaScript:

The HTML <video> tag is used to embed video content in a web page. It shares many functionalities with the <audio> tag, including several methods, properties, and events.

Step 1: Embedding a video file using the <video> tag:

<video id="myVideo" width="420">
  <source src="yourVideo.mp4" type="video/mp4">
  <source src="yourVideo.ogg" type="video/ogg">
  Your browser does not support the video tag.
</video>

Step 2: JavaScript can be used to control the <video> element. Here is an example of how to start and stop a video using JavaScript:

<button onclick="playVideo()" type="button">Play Video</button>
<button onclick="pauseVideo()" type="button">Pause Video</button>

<script>
var myVideo = document.getElementById("myVideo");

function playVideo() { 
  myVideo.play(); 
} 

function pauseVideo() { 
  myVideo.pause(); 
} 
</script>

This is a brief overview of how to manipulate audio and video using JavaScript. Note that the play() and pause() are pre-defined methods for HTML media elements. More advanced manipulations would involve using the Web Audio API, WebVR API, Media Source Extensions, etc.