Audio files can be embedded into pages and be displayed as an inline audio player.
At present, only files in MP3 format can be used for this and need to be encoded with a sampling rate of 44KHz, to avoid possible playback speed issues.

Add the MP3 file as a downloadable file
Right click on the link that is created and choose 'Link properties'
Set the Subtype to 'MP3 player' (as shown below)
Click OK and save the changes in the text wizard.

Please note that when this is created, all link text relating to it will disappear. If text is required, a description can be added before or after the player.