Steps for testing:
1-Enable Xuggler from Control Panel (a restart may be required).
2-Add some audio files to Documents & Media.
3-Go to Site content -> Web Content. Click in "Add basic web content".
4-Ensure there is a button in CKEditor toolbar with an audio image on it.
5-Click the button. From dialog, select an audio file previously uploaded.
6-Ensure in web content now appears a placeholder with an audio image where the audio player will be. To check the correct behaviour of the component, click in CKEditor's "Source" button, and check that there is HTML created. Click again an check that placeholder appears again. Double click in the placeholder and check that Audio Properties dialog shows again.
7-Publish that web content and add in any page. Assert that you can reproduce the audio in that page(s).