diff --git a/carrier22.wav b/carrier22.wav
new file mode 100644
index 0000000..8b2526c
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diff --git a/modulator22.wav b/modulator22.wav
new file mode 100644
index 0000000..a6ad482
Binary files /dev/null and b/modulator22.wav differ
diff --git a/speech_analysis.m b/speech_analysis.m
index bd7f4f5..bf5de5d 100644
--- a/speech_analysis.m
+++ b/speech_analysis.m
@@ -9,4 +9,12 @@
 #
 #################
 
-pkg load signal
\ No newline at end of file
+pkg load signal;
+
+[y fs] = audioread("modulator22.wav");
+
+t=[1:1:size(y)];
+
+figure
+plot(t,y);
+
diff --git a/white.wav b/white.wav
new file mode 100644
index 0000000..98c77ea
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diff --git a/white_periodic.wav b/white_periodic.wav
new file mode 100644
index 0000000..f24def4
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