Z - transfer function, Simulation in MATLAB

This question examines the addition of a (synthetic) echo to the voice recording, such as would be found in a reverberant room. To do this, use a difference equation of the form

y(n)   =  x(n) + αy(n - D)

where x(n) is the input audio, y(n) is the output (echoed) audio, D is the echo delay (in samples), and α governs the amount of echo fed back.

Explain how to convert the above equation into a form suitable for passing to MATLAB's filter() command. Use α = 0.8 and D = 2 samples to explain your reasoning.

A delay of 2 samples (as in the previous part) would not be audible. Select an echo delay of 0.2 seconds, and α = 0.4. Using your reasoning above, implement the reverberation equation, and listen to the result.

Experiment with different values of the parameters α and D.  In your report, include a plot of the waveform, and explain in your own words the physical significance of these parameters.

Convert the difference equation to a z transfer function. Where are the poles located?

Suppose the equation governing the reverberation is

y(n)   =  x(n) + αx(n - D)

What would be the physical significance of this form, as opposed to that used in equation 4? Implement an audio echo system based on equation 5, and listen to the results.

Posted Date: 2/28/2013 12:17:15 AM | Location : United States







Related Discussions:- Z - transfer function, Assignment Help, Ask Question on Z - transfer function, Get Answer, Expert's Help, Z - transfer function Discussions

Write discussion on Z - transfer function
Your posts are moderated
Related Questions
Hi, I was wondering if you are able to provide me with simulations showing the optical double slit diffraction dependant on some variables such as distance to screen, slit width,

he basic equation of modeling radioactive decay is where the amount of the radioactive substance is at time and is the decay rate. Some radioactive substances decay into other radi

Q. With the use of MATLAB, find the expression for the waveform f(t) corresponding to a transform F(s) with a zero at s = - 400, a simple zero at s = -1000, a double pole at s = j4

1-1/3+1/5-1/7+1/9-...-1/1003

how to do clipper and clamper in simulink

I want to use a camera to detect objects by interfacing it with matlab ,i need any sourses to help me

Let f(x) = 2x^3-4 x+1 . Match output left number time output occurs input values x -3 3. Graph calculator windows county times.

i want a matlab code for uniform quantization of a jpeg image

I need to develop models to vary aileron, rudder characteristics to generate good lift and not very low speeds so the aim is wing modification of an aircraft

how to localize an event using hyperbolas and how to plot the hyperbola having equation (((x-x1)^2+(y-y1)^2)/a^2)-(((x-x2)^2+(y-y2)^2)/b^2)=1?