Initial release

Message audio stéganographié.py

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+import wave
+
+n = 4
+
+sound = wave.open("pikapikapika_res.wav")
+sound_secret = wave.open("pikapikapika_res_secret.wav", "wb")
+
+sound_secret.setnchannels(1)
+sound_secret.setsampwidth(sound.getsampwidth())
+sound_secret.setframerate(sound.getframerate())
+
+frames = sound.getnframes()
+
+for i in range(frames):
+    frame = sound.readframes(1)
+    left = int(frame[0])*256 + int(frame[1])
+    right = int(frame[2])*256 + int(frame[3])
+    pink = left ^ right
+    yellow = pink - 2**(15-n)
+    blue = yellow*(2**n)-1
+    try:
+        secret = blue.to_bytes(2, "big")
+        sound_secret.writeframes(secret)
+    except:
+        pass
+
+sound_secret.close()
+sound.close()