Question

Problem 3 you can use Matlab and also i give u the Problem 1 code its on Matlab

Using the same initial code fragment as in Problem 1, add code that calculates and plays y (n)=h(n)?x (n) where h(n) is the impulse response of an IIR bandpass filter with band edge frequencies 750 Hz and 850 Hz and based on a 4th order Butterworth prototype. Name your program p3.sce

this is the Problem 1 code and the solutin

clear; clc;

Fs = 8000;

Nbits = 16;

tMax = 10;

N = Fs*tMax+1;

f = linspace(0.0,0.2,N);

x = zeros(size(f));

plot(f,x)

phi = 0;

for n=0:N-1 x(n+1) = 0.8*sin(phi);

phi = phi+2*pi*f(n+1);

end

sound(x,Fs,Nbits);

pause % this will pause the programm after sounding the
first.

% sleep(10000);

%% Adding new codes

% creating the low pass butterwidth filter

Fn = 800; % cut off frequency

n = 4; % order of the filter

[b,a] = butter(n,Fn/(Fs/2))

% b = zeros, a = poles of the TF

TF = tf(b,a);

imp_res = impulse(TF);

y_n = conv(imp_res,x);

y_n = y_n(1:length(f));

% Ploting the Y(n) with frequency

plot(f,y_n);

grid on

xlabel('frequency')

ylabel('y(n)')

title('frequency responce')

% Playing Y(n)

sound(y_n,Fs,Nbits);

% the output from the input and filter coefficients

y = filter(b,a,x)

% end program

Answer #1

Problem 1....... you can use Matlab
The following Scilab code generates a 10-second “chirp” with
discrete frequencies ranging from 0 to 0.2 with a sampling
frequency of 8 kHz.
clear;
Fs = 8000;
Nbits = 16;
tMax = 10;
N = Fs*tMax+1;
f = linspace(0.0,0.2,N);
x = zeros(f);
phi = 0;
for n=0:N-1 x(n+1) = 0.8*sin(phi);
phi = phi+2*%pi*f(n+1);
end sound(x,Fs,Nbits);
sleep(10000); //allows full sound to play
Add code that calculates and plays y (n)=h(n)?x (n) where h(n)
is the...

Problem 1 ...... you can use Matlan i got one so all
what i need is 2, 3 and 4 one of them or all of them ..
thanks
The following Scilab code generates a 10-second “chirp” with
discrete frequencies ranging from 0 to 0.2 with a sampling
frequency of 8 kHz.
clear; Fs = 8000;
Nbits = 16;
tMax = 10;
N = Fs*tMax+1;
f = linspace(0.0,0.2,N);
x = zeros(f);
phi = 0;
for n=0:N-1 x(n+1) = 0.8*sin(phi);
phi...

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attenuate the noise so that the audio speech is intelligible.
(sorry but chegg doesn't allow me to attach the wav file)
Here is the design template:
clear, clc % clear all variables
%% Read in the noisy audio signal from the file 'CapnJ.wav' using audioread...

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Find the transfer function H(z). You will need to do this
manually.
Find the poles and zeros of H(z). You can do this manually or
use MATLAB.
Plot the poles and zeros in MATLAB
Is the system stable?
Plot the impulse response of the system using MATLAB
Plot the Step Response of the system using MATLAB
Plot the frequency response of the system...

1. Write a MATLAB function to determine the discrete-time
Fourier Transform (H(?)) of the following sequence. Plot its
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x(n) = {4, 3, 2, 1, 2, 3, 4}.
2. Analytically determine H(z) and plot its magnitude and phase
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In this problem you will use the cursor tracker code from the
previous homework assignment to measure frequency responses to
various sinusoidal inputs and then generate a Bode plot. Use the
Matlab file track cursor.m provided on Blackboard for a
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equilibrates, generate a sinusoidal input by moving the cursor back
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Please explain how so that I can get it
Both problems please and problem 1 only for part (e). Problem2
only part(c).
P1)The expression x = 7.70
cos(2.50πt + π/2) describes the position
of an object as a function of time, with x in centimeters
and t in seconds. What are the following?
(a) frequency
1.25Hz
(b) period
0.8 s
(c) amplitude
7.70 cm
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I. Solve the following problem:
For the following data:
1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 6 n = 12
b) Calculate
1) the average or average
2) quartile-1
3) quartile-2 or medium
4) quartile-3
5) Draw box diagram (Box & Wisker)
II. PROBABILITY
1. Answer the questions using the following
contingency table, which collects the results of a study to 400
customers of a store where you want to analyze the payment
method.
_______B__________BC_____
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