All Questions
4
questions
0
votes
0
answers
66
views
In square wave modulation: should the low frequency part of the graph not take place in the low amplitude part of the pulse?
I try to get my sound program right, and hoped to find some help here with the understanding of frequency modulation by a square wave.
My modulation looks like this: (please excuse if my formula ...
1
vote
0
answers
1k
views
Fraunhofer diffraction problem in Python: How to interpret discrete Fourier transform (DFT) spectrum?
I have a periodic phase grating consisting of lenslets along the x-direction, invariant in y. I want to use python to calculate the far-field (Fraunhofer) diffraction pattern that one gets when ...
1
vote
0
answers
431
views
How to convert a wave from Amplitude time to Amplitude Frequency domain? Regarding Gravitational waves strain data
I have read that on applying FFT on gravitational wave strain we can bring Amplitude time domain to Amplitude-frequency domain. But when I apply this conversion on the data I had I get this curve
I'...
1
vote
1
answer
737
views
Is there any way to find difference between two same sounds of different people? [closed]
I am trying to understand and find a way to distinguish two same sounds of different people by some physics formula, so could you guys help me?
OK I'll try to explain my question in this way that, ...