Pulse code Modulation

PCM on a sine wave and a .wav file for demonstration of various processes done during PCM.

Two codes: First one demonstrates PCM on a sine wave. To verify this code, second one uses the same code to perform PCM on a .wav file.
Performs sampling, quantizing, encoding, and decoding in first code.
In the 2nd code, u can play the original and decoded(after PCM) .wav file and compare quality, distortion etc for various n-bit values and sampling frequency.