Need the matlab code for this

Please upload a picture of the code in matlab, if its typed it will be confusing and unclearPart $3$: Threshold the data & filter it$.$

Sometimes, you will wish to say that any measured data below a certain value is "garbage". This value is called the "threshold". Conversely, you can say that any value above the threshold is meaningful.

For instance, here I realized that anything below $1\mathrm{.}1$ was "noise" and didn't represent peaks in my sound data:

Figure $10$ The original graphs on on the left. It looks like the threshold should be set to $1\mathrm{.}1,$ which results in thresholded graphs on the right, where anything above $1\mathrm{.}1$ volts is given a new value of $1$ and anything below it is given a value of $0.$

Create a new graph. This time, write a conditional statement that contains a threshold value $($for example, $1\mathrm{.}5)$:

Converts any voltage below a threshold of $1\mathrm{.}5$ volts to a value of $0.$

Coverts any above $1\mathrm{.}5$ volts and make it a $1.$

Graph the result, making sure to use the axis function in MATLAB to adjust your vertical axis so that you can see values that remain at $0$ or $1.$

Figure $11$ Yo $$ it by applying another moving average filter.

Demonstrate to the TA that you can capture the piano sound, again, but this time, with a thresholded graph that shows between two and four peaks for the four piano key sounds, where the presence of the piano sound is shown as a $1$ and no sound is a $0.$