The code commonly used for sonic digital information is called Pulse Code Modulation (PCM). PCM is a method used to digitally represent an analog audio signal by taking regular samples of the sound wave's amplitude and encoding those samples into binary code. This binary code can then be transmitted, stored, or processed digitally. PCM is commonly used for audio compression formats like WAV or FLAC, as well as for data transmission in applications like voice over IP (VoIP) or digital audio broadcasting (DAB).
