Showing that even when a sampled wave looks jagged a smooth wave can still be reconstructed. In this case I show that by resampling from 44.1 to 192, but the same principle applies to playing back a digital sound.
This video shows that starting at 44.1kHz sample rate, then resampling to 192kHz, then to 48kHz, then finally back to 44.1 kHz doesn't introduce any distortion or lost information. (Because the original input audio has only frequencies below 22 kHz, and working at 32-bit depth).
