Difference between revisions of "HW1.2 Sourabh Ranka ECE301Fall2008mboutin" - Rhea

Latest revision as of 13:47, 5 September 2008

sound files

File Media:songfoward_ECE301Fall2008mboutin.wav

File Media:songrevrese_ECE301Fall2008mboutin.wav

File Media:songslow_ECE301Fall2008mboutin.wav

matlab command

%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');

%dont know what exactly it says but sounds like "I will face the death" in foward direction
% in the backward direction sounds like "it is the fire night" or somthing i cant understand it clearly.