adamdea;578884 Wrote: > > If you reduced by 24 db would you get 8 8 8 9 8 8 8 8 8 7 8 8 8. (I > said 24 db because you said it was a 6 db reduction in your example > but I confess I don't understand the 6 db equivalence. I just mean > getting quieter to the point where the peak becomes 9 and the trough 7) > >
6dB is often used as as +6d dB is a double in signal level and a -6dB is a halving in signal level. The dB is derived from the logarithmic scaling of signal levels. Decibel scale is logarithmic (to understand logs you should have paid more attention at school::) A decibel is 10th of a bell, but is a measure of power which is proportional to voltage squared that comes out as 10 * it's square ie 10*2=20. (school stuff:) 20 log 2(twice the amplitude) = +6db 20 log 1/2 (half the amplitude) = -6dB. So the OP using 6db plus or minus is a good analogy. -- Waldo Pepper ------------------------------------------------------------------------ Waldo Pepper's Profile: http://forums.slimdevices.com/member.php?userid=39029 View this thread: http://forums.slimdevices.com/showthread.php?t=82050 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
