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Editorial Team
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Asked: 2026-05-25T06:18:31+00:00

I made test application in Delphi that beeps morse code using Windows API Beep

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I made test application in Delphi that beeps morse code using Windows API Beep function. Then made an application in Android that stores this morse code in WAV file. Now I want Android application to decode the morse code. Is there some tutorials for sound processing or can somebody post some simple code (think there’s no simplicity here) for an example? Or maybe steps that I need to do to get it work?

I also downloaded the JTransforms and jfttw libraries but don’t really know where to start.

Regards,
evilone

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1 Answer

  1. Editorial Team

    An FFT is overkill for this – you can just use a simple Goertzel filter to isolate the morse code from background noise, then decode the output of this.

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