From: phil_a@tpg.com.au   
      
   Hi,   
      
   my colleague Rod Elliot has designed a neat, tone burst gate that you can   
   build yourself quite cheaply.   
      
   It can produce bursts of 1 to 32 "on" cycles followed by 4 to 64 "off"   
   cycles at any audio frequency.   
      
   Perfect for amp testing, comp/limiter testing, VU meter testing and speaker   
   performance testing.   
      
   http://sound.westhost.com/project143.htm   
      
   For speaker testing, you will need an suitable omni electret or omni   
   condenser mic and preamp.   
      
   The Behringer ECM8000 is a possible candidate.   
      
      
   ...   Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)