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From: | Doug Stewart |
Subject: | Re: ubuntu soundsc and fourier transform |
Date: | Fri, 31 Jul 2015 10:12:28 -0400 |
Hi,I was trying to use the function soundsc or sounds in octave, but I recives this message:octave:5> y=randn(1,1000);octave:6> soundsc (y)error: portaudio not found on your system and thus audio functionality is not presenterror: called fromaudioplayer at line 105 column 19soundsc at line 90 column 8Too I was trying to use the fourier function like this:
Symbolic Fourier transform.
Example:
>> syms x >> f = exp(-abs(x)); >> fourier(f) ⇒ (sym) 2 ────── 2 w + 1
Note fourier
and ifourier
implement the non-unitary, angular frequency convention.
*WARNING*: As of SymPy 0.7.6 (June 2015), there are many problems with fourier transforms, even very simple ones. Use at your own risk, or even better: help us fix SymPy.
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