WordPress lets users add audio in .mp3, .m4a, .ogg, and .wav formats.
  1. Open the post you want to edit
  2. Click the Visual tab
  3. In the textbox, place your cursor where you want your audio clip to appear
  4. Click Add Media
  5. Click the Upload Files tab
  6. Choose an audio clip
  7. Click on Select Files to upload an audio clip from your computer
  8. Give your audio clip a title, caption, description, and choose display settings
  9. Click Insert into post
  10. Click Update to save these changes