Go back to the dashboard of your website and decide where you want the voice file to be placed.

Hit the media icon in your tools at the top of the page. Its above the word paragraph on the left hand side.

Choose upload media.

Then upload files. Now it is just as if you were uploading an image.

Find the file you have saved and click on it.

Hit open and wait for it to load.

Once it is loaded and it appears alongside any other media files you may have, you hit

Insert into post. This is at the bottom right of your screen.

Then hey presto, you have done it! Congratulations!