As a user, if the provided audio file does not contain any detectable Morse code signals, I want the utility to inform me of this, so that I understand why no decoded text was produced.
Acceptance Criteria: A clear message like "No recognizable Morse code signals found in the audio." is displayed.
As a user, if the provided audio file does not contain any detectable Morse code signals, I want the utility to inform me of this, so that I understand why no decoded text was produced.
Acceptance Criteria: A clear message like "No recognizable Morse code signals found in the audio." is displayed.