Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » Software » comp.soft-sys.matlab

Topic: query about function output
Replies: 4   Last Post: Dec 26, 2013 7:45 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Loren Shure

Posts: 1,015
Registered: 12/7/04
Re: query about function output
Posted: Dec 24, 2013 10:21 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Dhanashree " <dhanurane17@gmail.com> wrote in message
> y=abs(x_fft(1:M/2,:));
> imagesc(t,f,dB(y))
> imagesc gives me the spectrogram.that is i have used that function to plot
> the spectrogram.y is giving the magnitude of the fft calculated.In the
> above function what does dB(y) do? when i use only y i get complete ble
> coloured spectrogram.plz help.

dB is either a function that you have or a variable you haven't shown us
yet. It looks like it's meant to be a decibel calculation, but without the
code, hard to say...



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum 1994-2015. All Rights Reserved.