From 4828ae37891a955732fa94e9bb9e2e2725a6f4b4 Mon Sep 17 00:00:00 2001
From: c24leray <camille.lerays@imt-atlantique.net>
Date: Fri, 2 May 2025 08:12:15 +0200
Subject: [PATCH] coucou

---
 SAR.m | 25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/SAR.m b/SAR.m
index 35211ee..35b5d80 100644
--- a/SAR.m
+++ b/SAR.m
@@ -1,4 +1,23 @@
-[x,fe]=audioread("C:\Users\camil\Documents\IMT_A\semestre_6\electrical engineering\tp-audio-ee-etudiant-c24leray\src\wav\piano_chord.wav");
-soundsc(x,fe);
+[x1,fe1]=audioread("C:\Users\camil\Documents\IMT_A\semestre_6\electrical engineering\tp-audio-ee-etudiant-c24leray\src\wav\single_tone_piano1.wav");
+[x2,fe2]=audioread("C:\Users\camil\Documents\IMT_A\semestre_6\electrical engineering\tp-audio-ee-etudiant-c24leray\src\wav\single_tone_piano2.wav");
+soundsc(x1,fe1);
+soundsc(x2,fe2);
 
-X = fftshift(x)
+L1 = length(x1)
+L2 = length(x2)
+
+X1 = fftshift(fft(x1))
+X2 = fftshift(fft(x2))
+
+f1 = (-L1/2 : L1/2 - 1)*(fe1/L1)
+f2 = (-L2/2 : L2/2 - 1)*(fe2/L2)
+
+figure;
+plot(f1, log(abs(X1)),'r');
+hold on;
+plot(f2, log(abs(X2)),'b')
+
+title("spectre")
+xlabel("fréquence en Hz")
+ylabel("log|X(f)|")
+legend(piano1, piano2)
-- 
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