LastWave Package Stft 2.0 Authors Description Examples



Package allowing the computation of Short Time Fourier Transforms and some derived time-frequency representations.


Let's run the Demo DemoStft

Let's run the Demo DemoStft
First it displays the (in the same window) a sound signal (a male voice saying the french word bonjour) above its short time fourier transform:

If you zoom either the signal or the short time fourier transform (using the mouse or the command line), both zoom at the same time (inthe following example we zoomed a part of the short time fourier transform)

If you hold down the shift key while pressing the middle button on the short time Fourier transform, it displays (in a different window) a vertical cut of the short time Fourier transform (in dB). If you move the mouse, the cut is updated in real time