[continued from previous message]   
      
   > what? What additional usefulness do I get by measuring   
   > bandwidth in   
   > octaves?   
   >   
   >> They both linearise an axis that would otherwise   
   >>require a log scale to fit with perception, and therefore   
   >>with significance.   
   >   
   > I do plot it on a log scale, log10.   
   >   
   >>Ian   
   >>   
      
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