The platform supports the AAC audio format for use on our web and mobile applications. Not all cameras support this standard so audio support is dependent on the hardware you are using. 
 
Here is a quick summary of sound support for premium cameras:
 
 
* Business plans only
** Only applies to Hanwha cameras that are port forwarded
 
Other camera types depend on the encoding. In general it's common to get audio in the live view but it varies when it comes to the motion video clips.