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

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   Message 40,165 of 41,683   
   Don Pearce to dpierce@cartchunk.org   
   Re: dBFS   
   22 Nov 10 16:07:29   
   
   XPost: rec.audio.pro, comp.dsp   
   From: spam@spam.com   
      
   On Mon, 22 Nov 2010 10:58:30 -0500, Dick Pierce   
    wrote:   
      
   >Since energy is power integrated over an interval of time,   
   >we have all the information we need. The power is whatever   
   >the scaled sample value is. The interval is 1 sample period.   
   >Thus the energy is knowable.   
      
   The sample period is the interval between samples, not the duration   
   over which a sample is integrated. As far as I know, all ADCs sample   
   an instant as the edge goes low. Energy at an instant is always zero,   
   whereas power at an instant is whatever it is.   
      
   d   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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