NBC (three-note sound)

NBC (Three-Note Sound) refers to the distinctive auditory signature of the National Broadcasting Company, typically used as an audio logo or identification tone. It consists of a carefully crafted sequence of three notes that are easily recognizable and associated with NBC broadcasts and branding. These notes are designed to be memorable and evoke a sense of trust and familiarity, helping viewers instantly identify NBC programming. The NBC three-note sound acts as an auditory symbol, much like a visual logo, serving to reinforce the network's brand identity across various media and during transitions between programs.