HW1.2 Aishwar Sabesan ECE301Fall2008mboutin - Rhea

Audio Files

• Original Speed Backwards
• Backwards at 3/4 speed

Subliminal Message

I TAKE MY OWN LIFE

M-File

delta = 0.000022;

jp = wavread('jpforward.wav');

jp_f = flipud(jp);

%song played backwards at normal speed
sound(jp_f,1/delta);
wavwrite(jp_f,1/delta,'JPBackwards.wav');

pause(15)
%song played at 3/4 speed 
%you can clearly hear the "subliminal message" at this speed

sound(jp_f,(1/delta)*0.75);
wavwrite(jp_f,(1/delta)*0.75,'JPBackwardsSlow.wav');