Logarithmically space a vector

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S
S on 28 Jan 2024
Commented: Walter Roberson on 28 Jan 2024
I am trying to logarithmically space out these center frequnecies. I am unsure how I would do that. At first I though to use logspace instead of linspace but logspace uses base 10. So if I switched it the range would actually be 10^50 to 10^8000 which I do not want. Should I just recaculate what log values are closest to these numbers or is there a better way? Thank you for your time!
numFilts=32;
CenterFreqs = linspace(50, 8000, numFilts);
CF1 = CenterFreqs - BW/2; %Lower cutoff frequency
CF2 = CenterFreqs + BW/2; %Upper cutoff frequency

Accepted Answer

Torsten
Torsten on 28 Jan 2024
Moved: Torsten on 28 Jan 2024
Maybe you mean
numFilts=32;
CenterFreqs = logspace(log10(50), log10(8000), numFilts)
CenterFreqs = 1×32
1.0e+03 * 0.0500 0.0589 0.0694 0.0817 0.0962 0.1134 0.1335 0.1573 0.1853 0.2182 0.2570 0.3027 0.3566 0.4200 0.4947 0.5827 0.6864 0.8085 0.9523 1.1217 1.3212 1.5563 1.8331 2.1592 2.5432 2.9956 3.5285 4.1561 4.8954 5.7662
plot(1:32,CenterFreqs)
  2 Comments
S
S on 28 Jan 2024
so y is freq in hz, and what is x?
Walter Roberson
Walter Roberson on 28 Jan 2024
x is point number in the above graph.

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