XPost: rec.audio.pro, comp.dsp   
   From: spam@spam.com   
      
   On Sat, 20 Nov 2010 15:57:15 -0500, Randy Yates    
   wrote:   
      
   >spam@spam.com (Don Pearce) writes:   
   >> [...]   
   >> FFS. The dB is NOT a unit of anything. It is a ratio expressed in log   
   >> form for convenience (to avoid huge numbers). Nothing more and nothing   
   >> less.   
   >   
   >"dB" is a ratio of powers.   
   >   
      
   Quite, but provided you don't change the impedances in the meantime it   
   is also a ratio of voltages or currents.   
      
   >  http://www.digitalsignallabs.com/db.pdf   
   >   
   >"dBm", "dBV", etc., are units.   
      
   The "m" and the "V" are the units, not the "dB" part.   
      
   d   
      
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