Research Into Game Audio

Revolutionary Audio within Games -

1972: Pong is the first video game to have a single sound

1974: Atari's Tank was the first game to have a difference in sound, notice the tank's rumbling noise accelerates.

1978: Space invaders is the first game to have sound assigned to specific specific objects, the bullets firing, bullets hitting and the boss ship each make their own noise.

1978: first game to have human voice assigned.

1984: Tetris is the game to have it's own theme tune.

1985: Super Mario Bros is the first game to have specific theme songs on different levels.

1991: F-Zeros is the first game to use 8 bit sound, meaning 8 different tracks.

1995: 24 samples

2001: Halo being orchestrated, when the player gets to experience amazing music

Red Dead Redeption,

Reactive & Adaptive sounds within a games -

Candy Crush Saga

Adaptive sounds -
Background music, fairground  music on a continues loop.
Failure to complete the level results in a change of background music to a more negative sound loop on the game over screen.
Reactive sounds -
- Clicking sounds when you move a candy sweet.
- Negative sounds when two sweets are tried to swap that can't be.
- Positive sounds when swapping is successful.
- Special moves have there own music sequence and sounds effects.
- More then one candy crush sequence in one move triggers a voice over saying 'sweet' 'Delicious' in a deep monotone voice.

http://www.flashgames247.com/play/1255.html

De-Animator

Adaptive sounds -

background wind playing on a loop.
Zombie growning as they walk towards the player.
Zombies rising from the ground.

Reactive sounds -

Gun shot noises when player shoots.
Screaming when players shoots zombie in the head.
Screaming from the player when the player lets Zombie get too close.
Reloading when player runs out of bullets.