This sound is from The Big O Soundboard

The Big O was created by designer Keiichi Sato and director Kazuyoshi Katayama for Sunrise. The television series was designed as a tribute to Japanese and Western shows from the 1960s and 1970s. The writing staff was assembled by the series' head writer, Chiaki J. Konaka.
See also: Big O notation, Big O, Big O in probability notation, Big O Tires, Roy Orbison, and List of The Big O episodes.