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

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   Message 40,086 of 41,683   
   Mike Rivers to Randy Yates   
   Re: dBFS   
   19 Nov 10 17:20:09   
   
   XPost: rec.audio.pro   
   From: mrivers@d-and-d.com   
      
   On 11/19/2010 4:33 PM, Randy Yates wrote:   
      
   > If an RMS measurement needs to be made for a digital signal (i.e., on a   
   > digital mixing console or a ProTools plugin), what units are utilized? I   
   > thought they were dBFS, i.e., that dBFS was an RMS measurement.   
   > Apparently I am incorrect. Somebody please set me straight.   
      
   What, exactly, are you trying to do?   
      
   0 dBFS is a peak level. It can be only one sample long, and   
   you'll never come up with a useful RMS value for that. I   
   explained some instances where you'd know both the peak   
   level (full scale) and the RMS value of the waveform with   
   those peaks. But the two aren't really the same kind of   
   measurement.   
      
      
   --   
   "Today's production equipment is IT based and cannot be   
   operated without a passing knowledge of computing, although   
   it seems that it can be operated without a passing knowledge   
   of audio." - John Watkinson   
      
   http://mikeriversaudio.wordpress.com - useful and   
   interesting audio stuff   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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