%Sourabh Ranka
%email== sranka@purdue.edu
%ece 301
%to clear data
clear;
clc;
%using the waveread command to convert the .wav file to the digital signal 'song'
[song, samplerate, bitspersample] = wavread('H:\pu.data\Desktop\Jpforward.wav');
%using the waveplay command to listen the digital signal we have just converted at 44100 hz sampling rate
wavplay(song, samplerate);
songback = flipud(song);
%to play the file backwardwe use the waveplay command and it runs it at the same frequency as the original sample rate
wavplay(songback, samplerate);
%to play the song at half the sample rate
wavplay (songback,samplerate*0.5);
% to write the program on wave file
wavwrite(song,samplerate,bitspersample,'H:\pu.data\Desktop\songforward.wav');
wavwrite(songback,samplerate,bitspersample,'H:\pu.data\Desktop\songbackward.wav');
wavwrite(songback,samplerate*0.5,bitspersample,'H:\pu.data\Desktop\songslow.wav');
