Z - transfer function, Simulation in MATLAB

Assignment Help:

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.


Related Discussions:- Z - transfer function

Network simulations and inferring network connectivity, The objective of th...

The objective of this problem is to simulate reaction networks for different connectivity. Another objective is to guess the network connectivity from given experimental data. Matl

How to draw a equipotential surface about 3D, We have a set of 3D-points wh...

We have a set of 3D-points who have their value, how to draw a equipotential surface by the value?

Underwater acoustic localization, how to localize an event using hyperbolas...

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?

Pid tuning methods, The scope of work is to investigate and report PID tuni...

The scope of work is to investigate and report PID tuning methods and to confirm their suitability for 2nd and 3rd Order Servo Mechanisms on a simulated system model utilising Matl

Matlab codes, what are the Z-window in dsp matlab codes

what are the Z-window in dsp matlab codes

Find the expression for the waveform, Q. With the use of MATLAB, find the e...

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

Generating steady state, I would like to get a matlab code that shifts a gi...

I would like to get a matlab code that shifts a given signal by 12.5 ms (to get 80 Hz response) and take the last segment (12.5 ms) and put it in the gap that is made by the shift.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd