Game Development Game Audio Syllabus

Game Audio syllabus — full chapter and topic list

Expand any chapter to see its topics and sub-topics. This is the whole examinable outline for Game Audio in Game Development, not a summary of it.

1. 1

   Sound Design

   3 topics

   • Sound Effects
   • Foley Art
   • Environmental Sounds
2. 2

   Music Composition

   3 topics

   • Background Music
   • Dynamic Music Systems
   • Music Theory for Games
3. 3

   Audio Integration

   2 topics

   • Audio Middleware (e.g., FMOD, Wwise)
   • In-Engine Audio Tools

Game Audio flashcards for Game Development

18 of 51 cards from the Game Audio deck — real questions with worked answers.

1. What is a sound effect (SFX) in the context of game audio?

   A short, discrete non-musical, non-dialogue audio asset triggered by a game event (e.g., a gunshot, footstep, or UI click) to reinforce player actions and world feedback.

2. Distinguish between diegetic and non-diegetic sound in games.

   Diegetic sound originates from within the game world and is (theoretically) audible to characters (footsteps, engine noise). Non-diegetic sound exists only for the player, not the characters (UI beeps, most background score).

3. What is Foley art?

   The art of performing and recording everyday sound effects (footsteps, cloth movement, object handling) in sync with picture/animation to add realism, named after sound artist Jack Foley.

4. Name the three traditional categories of Foley.

   Feet (footsteps on various surfaces), Moves (cloth/clothing rustle and body movement), and Props/Specifics (object interactions like keys, weapons, doors).

5. How do Foley sounds differ from a stock SFX library approach?

   Foley is performed live and custom-recorded in sync with specific action for tailored realism, whereas a library uses pre-recorded generic clips; Foley gives finer control and unique character but costs more time.

6. What is an ambience or environmental sound bed?

   A continuous background audio layer that establishes a location's sonic character (wind, birds, city hum, room tone), usually looped and non-attention-grabbing, to immerse the player in a place.

7. What is 'room tone' and why is it recorded?

   The subtle ambient sound of a specific space with no active action; it fills silence gaps so edits and layered SFX sit naturally rather than cutting to dead silence.

8. Define spatial (3D positional) audio in games.

   Audio rendered so a sound's perceived direction and distance match a source's 3D position relative to the listener, using panning, distance attenuation, filtering, and often HRTF for immersion.

9. What is an HRTF and what does it enable?

   A Head-Related Transfer Function models how the head, ears, and torso filter incoming sound by direction; convolving audio with an HRTF lets headphones reproduce full 3D directional cues (including elevation and front/back).

10. State the inverse-square law for sound intensity and its game-audio meaning.

    $I \propto \frac{1}{r^{2}}$ — intensity falls off with the square of distance $r$ from the source, the physical basis for realistic distance attenuation curves.

11. How many decibels does sound pressure level drop each time distance from a point source doubles (free field)?

    About $6\,\text{dB}$ per doubling of distance (a $\frac{1}{2}$ pressure ratio, since $20\log_{10}(\frac{1}{2}) \approx -6\,\text{dB}$).

12. Give the decibel formula for a sound pressure level ratio.

    $L = 20\log_{10}\!\left(\frac{p}{p_{0}}\right)\ \text{dB}$, where $p$ is the measured pressure and $p_{0}$ the reference pressure ($20\,\mu\text{Pa}$ in air).

13. What is attenuation (roll-off) in a game audio engine?

    The rule/curve that reduces a sound's volume (and often high-frequency content) as the listener moves away, defined by min/max distance and a roll-off shape (linear, logarithmic, or custom).

14. What are min distance and max distance in a 3D sound's attenuation settings?

    Min distance is the radius within which the sound stays at full volume; beyond it attenuation begins, reaching (near) silence or the minimum level at the max distance.

15. What is the Doppler effect and how is it used in games?

    The perceived pitch shift of a moving sound source relative to the listener; games apply it to fast movers (vehicles, projectiles) so approaching sources rise in pitch and receding ones fall.

16. Give the (non-relativistic) Doppler frequency formula for observer and source moving along the line between them.

    $f' = f\,\frac{c + v_{o}}{c - v_{s}}$, where $c$ is the speed of sound, $v_{o}$ the observer velocity toward the source, and $v_{s}$ the source velocity toward the observer.

17. What is reverb and what perceptual information does it convey?

    The persistence of sound from many reflections in a space; it conveys room size, material, and the listener's distance from surfaces, grounding sources in an environment.

18. Define RT60 (reverberation time).

    The time for a sound's energy to decay by $60\,\text{dB}$ after the source stops; larger, harder-surfaced spaces have longer RT60 (e.g., cathedral) than small soft rooms.

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