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Hi all,
in order to test various signals from different sound softwares, I am measuring parameters such as THD + N for the rendered files.
However I have come to a critical point of evaluating the results, and those are a bit confusing.
After applying the fft transformation, in linear scale...
Hey,
this is how I'm trying to do this :
[a,b]=max(Sig24) % In order to find where is the peak/fundamental.
i=find(fr<20000); % Find the audible frequency region
P=Sig24_nodB(i); % Find the power of each frequency component in audible region // Sig24_nodB is the abs(fft()) of my...
Re: how to calculate thd
Hello,
any ideas how to do the same in Matlab ??
From the frequency response of the FFT, write a script that identifies the harmonics and calculate the THD ....
Any ideas ?
Many thanks.
Stef
Hello, thanks for your answer.
However I have enough resolution in my fft for now.
The problem is that I want to find the highest harmonic not visually but with a script. Then I would calculate the THD ...
I have seen some functions do that but I want to do it from scratch.
Any ideas...
Hi,
can anyone help me to calculate the THD in a frequency response of a sine wave?
I know the theory behind it, but cannot find a way to write the Matlab code.
Many thanks,
Stef
Hi,
would it be possible for somebody to explain the best way to distinguish the n points of my signal and the points of my fft window ?
I have a simple sinusoidal (as analog as Matlab can give me). I want to see the fft response in different kind of fft points.
I use the following code...
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