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   rec.audio.tech      Theoretical, factual, and DIY topics in      41,683 messages   

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   Message 40,133 of 41,683   
   Scott Dorsey to yates@ieee.org   
   Re: Questions on Levels   
   20 Nov 10 19:59:53   
   
   XPost: rec.audio.pro, comp.dsp   
   From: kludge@panix.com   
      
   In article , 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.   
      
   dB is a ratio.   
      
   dBft and dBlb to talk about decibels with respect to a foot or a pound   
   are perfectly reasonable.   
      
   Probably the most common measurement, dBSPL, is actually referenced to a   
   pressure.   
   --scott   
      
      
   --   
   "C'est un Nagra. C'est suisse, et tres, tres precis."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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