Rich Kozick
Spring, 1997

EE 329: Homework 1

Date Assigned: Friday, January 24, 1997
Date Due: Week of January 27, 1997

  1. Please follow some DSP Links from the EE 329 Home Page.

  2. Please read Chapter 1 and Chapter 2, sections 2.1 and 2.2. We will discuss this material during the next several classes and during lab. We will begin Chapter 2 today (Friday) so that we can begin processing some signals with the discrete Fourier transform (DFT).

  3. Please answer problems 1.1, 1.2, 1.3, and 1.4. Submit your solution to 1.2 on Wednesday, January 29.

  4. Please download the sound file to your directory from the Web page for this homework assignment. Read the file into Matlab and play it with the commands:

    x = auread('');

    If you cannot download, try hw1data.dat and read the file into Matlab as follows:

    load hw1data.dat -ascii

    The sampling rate for this signal is 8192 samples per second. Analyze this signal with the FFT. Which frequency (in hertz) appears to be dominant? Do harmonics appear to be present? What do you think produced this sound? Submit your answer on Wednesday, January 29.

    NEW: For a shorter file that will run with the student version of Matlab, try hw1short.dat and read the file into Matlab as follows:

    load hw1short.dat -ascii

    The sampling rate for this file is 10 samples per second. What frequency components are dominant?

  5. We will have Lab 1 on Friday, January 24, at 11 AM.
Thank you.