blog:2019:0225_fft_scaling_factor
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blog:2019:0225_fft_scaling_factor [2019/02/26 17:04] – davek | blog:2019:0225_fft_scaling_factor [2019/03/08 04:47] – davek | ||
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- | The answer is yes, sort of. First off, remember what the first " | + | The answer is yes, sort of. First off, remember what the first " |
If you really do care about the absolute power in the frequency-domain bins, you might want to divide by N. Maybe you care about the total energy. Oh wait, you should sum the bins, then divide by N one time! Now it's faster for you, too. Maybe you only care about the energy of the strongest bin. Just divide that one bin by N and ignore the others! | If you really do care about the absolute power in the frequency-domain bins, you might want to divide by N. Maybe you care about the total energy. Oh wait, you should sum the bins, then divide by N one time! Now it's faster for you, too. Maybe you only care about the energy of the strongest bin. Just divide that one bin by N and ignore the others! |
blog/2019/0225_fft_scaling_factor.txt · Last modified: 2022/10/20 16:17 by davek