Audio Note
Xmind for desktop supports voice recording and inserting an Audio Note, and you can avoid missing any information in scenarios like classes, meetings, lectures, and more. Audio Note will be displayed as a subtopic, and the topic containing an Audio Note does not support inserting links.
Insert Audio Note
Select a topic, click the icon of Insert and then Audio Note in the toolbar.

Or you can do it in the menu bar.

Click the record button to start (notice that the microphone of the computer should be turned on).

Play the Audio
Select the audio note and click the button to play.

Delet Audio Note
Right-click the audio note and click Delete.

Save Audio Note
Right-click the Audio Note icon and select Save As, and you can save the note locally.