(New page: %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, bi...) |
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| + | <pre> | ||
%Sourabh Ranka | %Sourabh Ranka | ||
| − | |||
%email== sranka@purdue.edu | %email== sranka@purdue.edu | ||
| − | |||
%ece 301 | %ece 301 | ||
%to clear data | %to clear data | ||
| − | |||
clear; | clear; | ||
| − | |||
clc; | clc; | ||
%using the waveread command to convert the .wav file to the digital signal 'song' | %using the waveread command to convert the .wav file to the digital signal 'song' | ||
| − | |||
[song, samplerate, bitspersample] = wavread('H:\pu.data\Desktop\Jpforward.wav'); | [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 | %using the waveplay command to listen the digital signal we have just converted at 44100 hz sampling rate | ||
| − | |||
wavplay(song, samplerate); | wavplay(song, samplerate); | ||
songback = flipud(song); | 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 | %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); | wavplay(songback, samplerate); | ||
%to play the song at half the sample rate | %to play the song at half the sample rate | ||
| − | |||
wavplay (songback,samplerate*0.5); | wavplay (songback,samplerate*0.5); | ||
% to write the program on wave file | % to write the program on wave file | ||
| − | |||
wavwrite(song,samplerate,bitspersample,'H:\pu.data\Desktop\songforward.wav'); | wavwrite(song,samplerate,bitspersample,'H:\pu.data\Desktop\songforward.wav'); | ||
| − | |||
wavwrite(songback,samplerate,bitspersample,'H:\pu.data\Desktop\songbackward.wav'); | wavwrite(songback,samplerate,bitspersample,'H:\pu.data\Desktop\songbackward.wav'); | ||
| − | |||
wavwrite(songback,samplerate*0.5,bitspersample,'H:\pu.data\Desktop\songslow.wav'); | wavwrite(songback,samplerate*0.5,bitspersample,'H:\pu.data\Desktop\songslow.wav'); | ||
| + | </pre> | ||
Revision as of 14:10, 5 September 2008
%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');
