10.3b STFT labs

Source: Lab ideas from Computational Physics (Landau, Páez, Bordeianu), §10.3. Original drills. Continues 10.3.

Explorer

Pure Python. No NumPy.

Formula refresh

Warm up: pick the matching equation among lookalikes (same walk as the theory lesson).

Labs

Activity: Rectangular $w$

Define $w(u)=1$ if $|u|\le 0.5$ else $0$. Print $w(-0.2)+w(0.7)$ with 10 decimals.

No input.

Write-ups

0/1 solved

10.3b.W1

Using “window”, “spectrogram”, and “wavelet”, explain:

What is the main limitation of a fixed-width STFT compared to wavelets?

Minimum 3 words. Your answer must include: “window”, “spectrogram”, “wavelet”.

0 words/ 3 min

Meet the writing requirements, then you can open the model answer.

Next: 10.4 Wavelet transforms.