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Re: SNR calculations (was Re: setup.exe missing from FTP site)


Brian Dessent wrote:
But when you just want to use dB to represent a unitless ratio, then I
agree with you it's simply 10*log(ratio).

Yes, bytes are more closely analogous to volts (6 dB per doubling) than watts (3 dB per doubling).


This page explains why there are apparently two ways to calculate decibels:

http://arts.ucsc.edu/EMS/Music/tech_background/TE-06/teces_06.html

In actual fact, they're the same calculation, but it's easier to understand that in a volts vs. watts (power) context than in the tongue in cheek context we have here.


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