XPost: rec.audio.pro   
   From: ruffrecords@yahoo.com   
      
   Mike Rivers wrote:   
   > On 11/20/2010 6:16 PM, Ian Bell wrote:   
   >   
   >> dBFS is NOT a measurement method (peak or rms) but a   
   >> specification for a signal level. Unlike dBm, dBu and dBV is   
   >> has NO SPECIFIC PHYSICAL VALUE - it is simply the largest   
   >> value that a digital system can represent.   
   >   
   > That's one way of looking at it. The other way of looking at it is that   
   > when you know the relationship between full scale and output level or   
   > input sensitivity, dBFS has a physical meaning. However, it's more   
   > useful to specify a voltage (dBu etc.) than dBFS when working with   
   > actual useful digital audio hardware.   
   >   
   > I've been trying to find out what the original poster's real question   
   > is, but he seems to either not be sure or just refuses to answer, rather   
   > enjoying saying "no, that's not it" rather than formulate a question   
   > that isn't abstract.   
   >   
   >   
      
      
   He is also getting confused between the definition of signal level (like dBu   
   for   
   example) and the means of measuring a signal level like RMS or peak.   
      
   Cheers   
      
   Ian   
      
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