When a hero has to make a desion of weather to save a society and lose his only family he ever had in his entire lifetime. Also, a hero who loses something very dear to him or her.
PCM: Pulse code modulation. It is a method used to digitally represent sampled analog signals. It is the standard form of digital audio in computers, digital telephony and compact discs. The amplitude of this signal is sampled regularly at uniform intervals.
PAM: Pulse amplitude modulation. It is a form of signal modulation where the message information is encoded in the amplitude of a series of signal pulses.
