I need help by adding an echo in to a 8kHz, 1 channel, 8 bit voice signal. I need to use this equation to add the signal
r1=.6,r2=.3, k1=5 seconds, and
[y,fs]=audioread('voice.wav'); t=[1/fs:1/fs:length(y)/fs]; sound(y,fs); figure plot(t,y) y1=y+.6*y*(40000)+y*.3*(96000); sound(y1) plot(y1)
when I play it back it does not have an echo. any help on this would be appreciated.