#### panda1234

##### Full Member level 2

I want an audio signal that's equation is:

y[n]=x[n]+kx[n-3200]+k^2x[n-6400]+k^3x[n-9600]

now i want to filter this and obtain y_new=x

i know it's function is:H=(1+kR+k^2R^2+k^3R^3)

so invert function is:H'=1/(1+kR+k^2R^2+k^3R^3)

Q1:should i put 3200 instead R?

Q2:how to use this filter in matlab?

is this correct?(y_new=filter(1,[1 k*3200 (3200)^2*k^2 (3200)^3*k^3],y))