This is a test project to determine which approach of capturing the audio from microphone can work on PC, Android and iOS.
It seems that the navigator.mediaDevices.getUserMedia works on Android 9, but on iOS 14 and 15 does not.
Other approaches (Cordova plugin audioInput or Cordova plugin media) might work for iOS, but I could not locate where the app could be saving the recordings.
Run monaca preview to preview the app.
There is a webpack bundler setup. It compiles and bundles all "front-end" resources. You should work only with files located in /src folder. Webpack config located in script/webpack.config.js.
Webpack has specific way of handling static assets (CSS files, images, audios). You can learn more about correct way of doing things on official webpack documentation.