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# Hang on, 'SOB' in quotes?
Is this sarcastic bawling?
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 13:46, archived)
# OMG
she's working for THEM!

it's all going to go wrong for Art and Pip... the cunning twats!
(I helped save b3ta! Prof UnderCover evitable, Mon 8 Sep 2008, 13:48, archived)
# re: your sig
Just 'pillaging'? That's no fun. What about the other part?
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 13:52, archived)
# rape never went away
(I helped save b3ta! Prof UnderCover evitable, Mon 8 Sep 2008, 13:53, archived)
# Sorry, being overly critical. Love SA really.
Anyway, I'll threadjack instead. Anyone know anywhere I can see a bit of code or method for generating white noise spectra? Gotta clip the bandwidth, then inv-FFT back to a trace.
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 13:49, archived)
# I was with you until just after noise
... now I think you might be rehearsing for a Sandra Bullock film about computers...
(I helped save b3ta! Prof UnderCover evitable, Mon 8 Sep 2008, 13:51, archived)
# Yes, I do indeed know nothing.
But I need noise within a specific bandwidth, and the only way I know of is to start with the spectrum, cut a chunk out of it, then turn that back into a signal. But to start with I either need a long white noise signal or a spectrum of one. And I don't know how easy/hard it is to make one up.
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 13:56, archived)
# white noise specta as in a gaussian distn?
bunch of pseudorandom uniforms and sum them.

what are you working in?
(k3b/-\b Peace man., Mon 8 Sep 2008, 13:56, archived)
# C++. Not specifically Gaussian as far as I know.
So, just a string of random numbers will make for a noise sample?

Then I could FFT that, clip the bandwidth, and inv-FFT it to get the band-limited noise I need?

I just wondered if there was a shortcut to making a spectrum. Could it just be uniform amplitudes with random phase, or will that go 'orribly wrong?
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 14:00, archived)
# this is tending out of my area.
think that you could generate a uniform random vector, mean zero. and then transform such that the autocorrelation is the identity...

/tending to talk out of my arse now, becuase I'm a bit uncertain about how to do what you want to do.
(k3b/-\b Peace man., Mon 8 Sep 2008, 14:20, archived)
# OK ta.
At least I know I can start with just random numbers to get a noise signal, and manipulate that as I need to.
(I helped save b3ta! joefish It's hard for thee to kick against the pricks, Mon 8 Sep 2008, 15:20, archived)