New Post: Build waveform graph for universal audio source

I am trying to build a waveform graph for universal audio source using Xamarin + NAudio. First it seemed like WaveViewer is doing what I need to do. So I have ported it to Xamarin. But now it seems to me it's kind of hardcoded to 16 bits WAV files (as it read 2 byte samples independent on file type).

Are there any better samples for that? I looked at WPF sample but didn't found the place where the low-level magic happens yet (I see only glossy WPF controls and bindings for now).