lab1_time_freq_analysis

# lab1_time_freq_analysis - Massachusetts Institute of...

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6.02 Spring 2008 1 of 26 Lab #1 Massachusetts Institute of Technology Dept. of Electrical Engineering and Computer Science Spring Semester, 2008 6.02 Introduction to EECS 2 Lab #1: Time-Frequency Analysis Goal:. ................................................................................................................................... 2 Instructions:. ........................................................................................................................ 2 Prelab: . ................................................................................................................................ 3 Understanding Sample Period, Exponential Damping, and the FFT function . .............. 3 Lab Exercises (9am - noon and 2pm – 5pm, Wed., February 13, 2008):. ........................ 10 Background on Piano Music. ........................................................................................ 10 Starting Matlab and creating a Lab1 Directory. ............................................................ 12 Time-Domain Analysis of Piano Notes. ....................................................................... 12 Frequency-Domain Analysis of Piano Notes. ............................................................... 15 Signal Modeling and Synthesis of Piano Notes. ........................................................... 16 An Even Simpler Model for our Synthesized Piano Notes. .......................................... 19 A Composition Script for Matlab . ................................................................................ 21 Exercises . ...................................................................................................................... 22 Check-off for Lab 1 . ......................................................................................................... 25 PostLab Exit Interview Questions . ................................................................................... 26

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2 of 26 Lab #1 Goal: Examination of signals in both the time and frequency domains, and observation of the benefits that each domain provides toward understanding the structure of a given signal. We will also briefly touch upon signal modeling concepts which are used to approximate certain signals through knowledge of their underlying structure. The context of our exercises will be examination of a recorded song from a piece of piano music, and an attempt to synthesize that music. Instructions: 1. Complete the Prelab exercises BEFORE Wednesday’s lab (2/13). Print all the plots that you generate in Prelab and bring them to the Lab to get checked off by one of the TAs before starting the Lab. 2. Complete the activities for Wednesday’s lab (see below) and get checked off by one of the TAs before leaving. Be sure to work in pairs with one computer per pair. 3.
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lab1_time_freq_analysis - Massachusetts Institute of...

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