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![]() ![]() ![]() Improved wav2txt to better analyze input WAV files in absence of WPM parm.Improved txt2wav with optional WPM parm.Simplified the directory structure for easier understanding.Updated to use GNU Ada rather than defunct AdaCore.You may read the full text of the GNU General Public License GNU General Public License for more details. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. This program is distributed in the hope that it will be useful,īut WITHOUT ANY WARRANTY without even the implied warranty of The Free Software Foundation, either version 3 of the License, or It under the terms of the GNU General Public License as published by Make sure your script is executable, then simply type its name to rebuild.Ĭovered by the GNU GPL v3 as indicated in the sources:Ĭopyright (C) 2023 program is free software: you can redistribute it and/or modify I suggest going to the following website to find an appropriate version of gnat: To rebuild, you must first install GNU Ada. ![]() Prebuilt executables for 3 platforms are delivered. Open source Ada developers are welcome to help improve or extend this app.ĭeveloper or not, send comments, suggestions or questions Build Instructions (for developers who wish to modify this code) (the beeps in the WAV file need to be loud enough for wav2txt to "hear" it!) Sox 24bit44k.wav -b 16 16bit8k.wav channels 1 rate 8k Soxi file.wav (gives properties of wav file) One simple one is included (txt2wav) merely for the sake of completeness. Wav2txt is not perfect, but computer-generated sound files can be reliably decoded.įinal note: many good apps can easily be found to generate morse code sound files from text. The (ideal) international morse code relative timings are defined as: The simple approach used here seeks to detect those changes in peak amplitude that signal dots, dashes, and spaces. After normalization, the sound wave peak amplitude is one, while the periods of silence have near zero peaks. = How wav2txt Works:Ī clean morse code sound file contains tonal beeps separated by periods of silence. ![]() This lowers the tone (from 500 to 250 Hz) so to restore the tone try: This output file can be renamed and manipulated using "sox", as follows. The inverse function txt2wav takes a commandline string, which must be quoted, optionally followed by an integer from the set, and creates an output WAV file, named "xxwpm.wav", with the morse code equivalent. There are 3 executables, 1 for each system in the morse directory: Then cd to the "base" directory named "morse".
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