finished exercise except for some parts of number 1

Assignment2_211/assignment2_5.m

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+% Read and play original audio
+[audio, fs] = audioread('./audio.wav');
+%sound(audio, fs);
+
+% Read and play room impulse response (RIR)
+[rir, fs_rir] = audioread('./rir.wav');
+%sound(rir, fs_rir);
+
+% Apply convolution (reverb effect)
+audio_reverb = conv(audio, rir);
+
+%sound(audio_reverb, fs);
+
+% Plot the waveforms
+figure;
+
+% Original audio
+subplot(2,1,1);
+plot(audio);
+title('Original Audio');
+xlabel('Sample Number');
+ylabel('Amplitude');
+
+% Reverberated audio
+subplot(2,1,2);
+plot(audio_reverb);
+title('Audio with Reverb');
+xlabel('Sample Number');
+ylabel('Amplitude');
+
+% Calculate signal energy
+function [ W ] = energy( x )
+    W = sum(abs(x).^2);
+end
+
+energy_rir = energy(rir)
+energy_original = energy(audio)
+energy_reverb = energy(audio_reverb)
+
+% Display energy values
+fprintf('Original Audio Energy: %.4f\n', energy_original);
+fprintf('Reverberated Audio Energy: %.4f\n', energy_reverb);