Open the document to be annotated.
Choose Edit > Annotations > Audio, or right-click the document within the Watch window and choose Audio from the context menu.
Select a location in the document where you want the audio annotation icon to appear.
If necessary, change the audio properties
In the Audio recorder dialog, choose File > Properties and change the audio annotation properties as necessary.
Select OK.
In the Audio recorder dialog, click the Record button and speak into the microphone.
Select the Stop button when finished.