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In the Signal Processing Toolbox, there's a function called specgram()
that does STFT. It has an option to output a 2D matrix which can be plotted using a 3d plot like mesh(). By default, it produces a nice color contour-plot of the Time-Frequency plane. > -----Original Message----- > From: Sid [mailto:] > Sent: Wed, February 06, 2002 2:47 PM > To: vinu jyothi; > Subject: Re: [matlab] short time fast fourier transform and waterfall > model > Hi, > You can check Lab9 on www.dspexperts.com . They have a lab on > STFT. Hope that helps > vinu jyothi <> wrote: HI Everybody > > how to plot short fast fourier transform of a signal.Is there > any other command other than fft.also how to plot waterfall > model(3d plot)for a speech spectrum,the 3 parameters r > amplitude,time and frequency. > > thank u > > _____________________________________ > Note: If you do a simple "reply" with your email client, only > the author of this message will receive your answer. You > need to do a "reply all" if you want your answer to be > distributed to the entire group. > > _____________________________________ > About this discussion group: > > To Join: > > To Post: > > To Leave: > > Archives: http://www.yahoogroups.com/group/matlab > > More DSP-Related Groups: http://www.dsprelated.com/groups.php3 > > ">http://docs.yahoo.com/info/terms/ |
RE: short time fast fourier transform and waterfall mode l
Started by ●February 7, 2002
