Finds Morse code inside of WAV file and prints it.
NOTE: If no Morse code like sounds are found, empty string is returned.
This Node.js command line script takes WAV file as input and tries to find Morse code from inside of it. It outputs the finding as a string to console (blurred in the above picture).
- Node.js
- TypeScript
- Unit testing with Jest
- ESLint static linter
This has been mostly tested with MacOS and Node.js 14.17.0.
Install node modules by running command npm install
Just build TypeScript files into dist folder by command npm run build
Build and execute by running npm start. This will decode the secret inside the input/message.wav file.
After building, script can be run in dist folder by command node index.js ../input/message.wav
Critical parts of code have been unit tested with Jest. To run the unit tests, run command npm test. In VSCode, it is also possible to debug unit tests by using Jest current file debug command. To run tests in watch mode, use command npm run test:watch.
Lint errors can be checked by running command npm run lint.
Following diagram explains the process how Morse code is decoded from WAV file.
