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From: Joao Goncalves on 14 Dec 2006 12:37
this is an exemple of help:

T = 0:0.001:2;
X = chirp(T,100,1,200,'q');
spectrogram(X,128,120,128,1E3);
title('Quadratic Chirp');

and it gives me following error:

??? Undefined function or method 'welchparse' for input arguments of
type 'double'.

Error in ==> spectrogram at 116
[x,nx,xisreal,y,Ly,win,winName,winParam,noverlap,k,L,options,msg] =
....

i can't do any spectrogram analysis.
what seems to be the problem??

please reply to this message. this is for a school work..
thanks
From: us on 14 Dec 2006 13:16
Joao Goncalves:
<SNIP a tbx function does not find a @private routine...

are you sure you installed the <signal proc tbx> correctly?

(you cannot simply ...take... <spectrogram> from someones
computer and think it is going to work)

us
From: Joao Goncalves on 15 Dec 2006 17:10
i re-installed matlab.

it works..

thanks Paul ;)
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