Check out example codes for "audio html tag". It will help you in understanding the concepts better.

Code Example 1

<audio controls>
  <source src="name.mp3" type="audio/mp3" />
</audio>

Code Example 2

<video width="320" height="240" controls>

  <source src="movie.mp4" type="video/mp4">

  <source src="movie.ogg" type="video/ogg">

  Your browser does not support the video tag.

 </video>

Code Example 3

MIME Types for Audio Formats
Format	MIME-type
MP3		audio/mpeg
OGG		audio/ogg
WAV		audio/wav

If simply audio '<audio>' tag is written then audio controls will not appear on the web page.
and for showing audio controller we need to write controls attribute in audion tag '<audio controls>'.

Example
<audio controls>
  <source src="horse.mp3" type="audio/mpeg">
</audio>

Learn ReactJs, React Native from akashmittal.com