Pong · Arcade · 1972 · Collision · Allan Alcorn
Nolan Bushnell wanted a cheering crowd. Ted Dabney wanted boos and hisses. Allan Alcorn, with no room on the board and no idea how to make either, found a few tones already inside the circuit — and the first famous sound in video games was the one that cost nothing to add.
Pong's sound was an afterthought, and it became one of the best-known sounds in the medium. When Allan Alcorn was building the game at Atari in 1972, his bosses had ambitious ideas: Nolan Bushnell asked for realistic sound effects with the roar of a crowd, and Ted Dabney wanted the machine to boo and hiss when a player lost a point. Alcorn had neither the space on the board for extra circuitry nor, at the time, the knowledge of how to generate such sounds with digital logic. So he looked at what was already there. Inspecting the sync generator — the part of the circuit that kept the video signal timed — he found that it could produce different tones, and he used those for the game's sounds. The result was a small set of clean electronic blips for the ball striking a paddle, bouncing off a wall and a point being scored. It was the cheapest possible solution, and it turned out to be perfect: the sound was immediate, tied exactly to the on-screen event, and gave the game a rhythm that players could hear from across a room. The prototype went into Andy Capp's Tavern in Sunnyvale in August 1972 and was so popular that its coin mechanism overflowed with quarters.
The Pong beep is a found object. It was not composed or designed in any modern sense; it was a signal that already existed inside the machine for another purpose, routed to a speaker. That origin matters, because it established something every later game sound inherited: feedback that is exactly synchronised with the event that causes it. When the ball meets the paddle, the sound happens at that instant, and the player's ear confirms what the eye saw.
Bushnell's cheering crowd would have been atmosphere. Alcorn's beep was information — and it made the game feel responsive in a way that ambience alone never could.