Multimedia Systems Lecture3 – Digital Audio Representation. What Is Sound?. Sound is the brain's interpretation of electrical impulses being sent by the inner ear through the nervous system. There are some sounds the human ear cannot perceive—those which have a very
Signal sampling representation. The continuous signal is represented with a green color whereas the discrete samples are in blue.
fs > 2*fmwhere fsis sampling frequency and
fm is the maximum frequency in the signal.
SNR (in DB)=