From: bruce2bowser@gmail.com   
      
   "Has anyone ever heard of transmitting sound over power-line? The situation I   
   am running into is where someone is transmitting sound thru powerline and then   
   the device they are using for the output is an HVAC, an A/C device, or a fan."   
      
   Profile photo for Charles Foy   
   Charles Foy   
   B. S. in Electric Power, North Dakota (state) (Graduated 1971)Author has 1K   
   answers and 394.4K answer views3y   
   Using PLC for in-the-home controls is possible, but not simple, and it may not   
   have anything thing to do with transmitting sound, per se. Transmitting   
   signals that are below radio frequency (sound) without a carrier is   
   problematic to say the least.   
      
   Power Line Carrier (PLC) works like this. Some High Voltage (as in many   
   thousands of volts) power lines are also used for communications ...   
      
      
   Quora - 3 years ago   
   -- https://www.quora.com/Has-anyone-ever-heard-of-transmitting-s   
   und-over-power-line-The-situation-I-am-running-into-is-where-som   
   one-is-transmitting-sound-thru-powerline-and-then-the-device-the   
   -are-using-for-the-output-is-an-HVAC-an-A-C   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)