diff --git a/matlab/tfgm/utils/wav_write.m b/matlab/tfgm/utils/wav_write.m
new file mode 100644
index 0000000000000000000000000000000000000000..da354e9595674152ce7e10d247687675aefe22f9
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+++ b/matlab/tfgm/utils/wav_write.m
@@ -0,0 +1,14 @@
+function  wav_write(filename, y, fs)
+%% WAV_WRITE
+% Function that writes an audio data file $y$ from a sampling frequency $fs$to a 
+% file called a $filename$.The filename entry also specifies the format 
+% of the output file.
+%
+% Author : A. Marina KREME
+% e-mail : ama-marina.kreme@lis-lab.fr/ama-marina.kreme@univ-amu.fr
+% Created: 2020-28-01
+%%
+
+x= y/max(abs(y));
+audiowrite(filename,x,fs);
+end 
\ No newline at end of file