A game without sound is like, hmm, this article really

How to Play Sound Effects in Unity

Jean-Noel Seneque
3 min readMay 25, 2021


Objective: Add sound effects when shooting lasers, blowing up stuff, and collecting powerups

Sounds play a critical role in immersing the player into the game by using music and sound effect. Seeing an asteroid explode so far is pretty cool but to actually hear the explosion as well adds the realism. On top of that, having music playing in the background, sets the mood and if used effective can really movitate the player.

How to add background music

Let’s start by Creating an Empty game object to the game scene called Audio Manager. This will manage all the sounds in the game.

Now let’s first focus on adding background music to the game. Within the AudioManager, Create another Empty game object and call it BackgroundMusic.

Next add an Audio Source component to the BackgroundMusic.

Now find the music file you wish to bring into the game, and drag it into the AudioClip slot. Make sure Loop is checked so the background music continues to loop while the scene is playing. Go ahead start your game to hear the music.

In the Audio Source component, you have a lot of settings you may adjust to make the music sound right.

How to add sound effects

In the section, I am going to add sound effects when I fire off a laser. An Audio Source component is best placed on the Player since the player is firing the laser and that is where the PlayerShoot script component is too. Uncheck Play On Awake so the sound effect sound does not fire off right away.

Next we need a variable in the PlayerShoot script to store a reference to the Audio Source and to store the Audio Clip (laser sound effect).

Store the sound effect
Reference to the Audio Source

In the Start method, get the reference to the Audio Source component

In the Fire Method, I have added the code to play the clip when the laser is shot.

Phew Phew Phew! You just going to have to believe me. The game feels sooooo much better with music and sound effects.

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Jean-Noel Seneque

A Data & Analytics Consultant who is expanding into developing experiences in XR, Enterprise and Gaming space using Unity www.jeannoelseneque.com