Function: demo_framemul
DEMO_FRAMEMUL  Time-frequency localization by a Gabor multiplier

  This script creates several different time-frequency symbols
  and demonstrate their effect on a random, real input signal.

  Figure 1: Cut a circle in the TF-plane

     This figure shows the symbol (top plot, only the positive frequencies are displayed),
     the input random signal (bottom) and the output signal (middle).

  Figure 2: Keep low frequencies (low-pass)

     This figure shows the symbol (top plot, only the positive frequencies are displayed),
     the input random signal (bottom) and the output signal (middle).

  Figure 3: Keep middle frequencies (band-pass)

     This figure shows the symbol (top plot, only the positive frequencies are displayed),
     the input random signal (bottom) and the output signal (middle).

Url: http://ltfat.github.io/doc/demos/demo_framemul.html

Package: ltfat