Experimental Data Analysis Lab

Lab Goals

The goals of this lab are to explore some of the experimental issues of the Fourier Transform.

Lab Manifest

• LoggerPro with microphone and voltage sensors
• Pasco Function Generator
• Lab Handout
• Response Template
• Reading WAV File Jupyter notebook
• Sampled WAV files
• Lab 5 data taking videos on Canvas
• Lab 5 data taking videos on website

General Instructions

The lab handout, linked above, gives detailed instructions for this lab. This lab is much more qualitative than those you have done recently. In general, you don't have to measure anything, or worry about uncertainties, but rather the idea is to give you some experience with the FFT algorithm in real life. Your lab writeup needs to answer the questions posed in the lab handout. To make this easier for you, a Response Template has been provided with all the questions listed. You do not need to use this if you don't want to, but it will help you find all the the questions being asked.

Code Assignment

The required code assignment is to apply the Fourier transform Amplitude vs. Frequency plotting you developed in Homework 5 to real data files recorded from some musical instruments. A Jupyter notebook has been provided to show how to read in the data files. Complete this notebook by making plots showing Amplitude vs. Frequency.

There is also an optional code assignment to create a sonogram from these data. This is not required, but I will give students a few extra credit points for doing aa good job on this. You can either write your own code, or learn how to use the specgram function in matplotlib