You received an intercepted audio recording that seems ordinary at first listen. However, suspicious activity is suspected, and hidden messages may be embedded in the sound itself. Your task is to uncover any hidden information using audio analysis techniques.
Flag Example: BUBT-CTF{secret_data}
Hint:
-Visual patterns in spectrogram view may reveal the secret.
-Morse
Learning Point: Understanding how data can be covertly embedded in audio signals and revealed through spectrogram analysis.
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Flags are checked regardless of capitalisation: IWin is the same as iwin.