3 ms·
I studied physics when I was young and my first reaction was 'sure you can!' and 'I have done that kind of stuff some 20 years ago or so'. What looks to be the
by cjfd 5y ago
I studied physics when I was young and my first reaction was 'sure you can!' and 'I have done that kind of stuff some 20 years ago or so'. What looks to be the problem is that he wants a rather non-physical kind of noise. The noise is supposed to be between 0 and 1 distributed uniformly. Now, that really is not the kind of noise one expects or wants in physics in most cases. The values that are distributed in a gaussian way would seem to be much more sensible. O well, I suppose the thing he calls 'blue noise texture' really cannot be generated very well in frequency space....
- whatshisface 5y agoIf you do the phases wrong you will get pulses instead of noise. Obviously if you do the phases right you can do anything, because the Fourier transform is one to one.
- deleted 5y ago[deleted]
- ssfrr 5y agoSure for any specific signal x you can craft the corresponding signal X so that ifft(X)==x, but the idea here is to generate a random signal with certain properties (blue spectrum and uniformly-distributed time-domain values). This is the tricky bit.
- a9h74j 5y agoEven physical noise? I don't imagine you could create a random walk in frequency space, say if the steps taken had to be integer-valued.