# Mandatory Tasks

## 2 

Basic: 

![image0.png](image0.png)

Scaled by divison max() for every individual frequency band:

![image1.png](image1.png)

## 3

without preparing the data via /= std: 

![image2.png](image2.png)

with equalizing the power via /= std (obviously not the best idea in this case):

![image3.png](image3.png)

## 4

![image4.png](image4.png)


![image5.png](image5.png)