Psychology of Sound

(1) The Outlast:
When you have caught the attention of the enemy, the music changes to something tense and it basically tells the player to run or hide. When you hide or run away far enough the music then changes back to the original background music. The music change tells the player whether they are in a safe position or not in the game.

(2) Elder Scrolls Online: Tamriel Unlimited
Once you have picked up a certain item it will make a sound effect of you putting that item into your bag or if you have picked up water it will make the sound effect of you collecting water in a bottle. This tells the player that they have definitely picked up the item then have just found.
Furthermore, there is a sound effect for when you have started/completed a quest which lets the player know that the quest is in play or has finished (text is included) and for when you have discovered a new town which will now appear on your map.

(3) COD series (Black ops 3)
The hit marker sound effect. We as the players know that we have shot bullets into the enemies when we hear the hit marker sound effect. We also know when we have hit a head shot as the hit marker noise is different from the generic hit marker sounds. It is a very distinctive noise. This sound can be very irritating for some players. For example, when a player considers the enemy to be dead because they have heard a certain amount of hit markers, when actually the enemy is still alive.


Mono: One Channel, output the same signal through both speakers.

 Stereo: Two Channels, output different signals to the left and right speaker.
















Surround Sound: Multiple signals to multiple speakers




















3D Audio: Sounds from speakers all around you, including above and below. The more of speakers you have placed around the room, more immersed you are.