Tasks done
 Read a wave file in matlab and plot it in time domain and frequency domain

Write a matlab script to draw a PWM [Pulse Width Modulation] waveform. Your code should take input the frequency and duty cycle of the wave.
Your Lab report should include
 Read a wave file in matlab and plot it in time domain and frequency domain
a. Code and Output graphs
b. Plot the output graphs for the following wave files listed in the page. 
Write a matlab script to draw a PWM [Pulse Width Modulation] waveform. Your code should take input the frequency and duty cycle of the wave.
a. Code and output waveform.
b. Plot the waveforms for the following f and discussion
i. f=100, d=10
ii. f=100, d=70
iii. f=100, d=35
iv. f=100000, d=40
v. f=1000, d=95 
Your lab report should include a discussion outlining the learnings from this lab.
Homework
1. PCM [Pulse coded modulation]
Lab test
19 november 2018
Syllabus Everything upto lab 6