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View, browse and sort the ever-growing list of sessions by day, pass type, topic, and format. With this Session Viewer, you can view GDC 2023 session details and speakers, and share your favorites via social media. You will be able to build your schedule and access it during the show via export or Mobile App, once live. Sessions do fill up and seating is first come, first serve, so arrive early to sessions that you would like to attend.

Fantastic Audio Algorithms and Where to Find Them

Guy Somberg  (Lead Gameplay Engineer, Echtra Games)

Location: Room 3014, West Hall

Date: Thursday, March 23

Time: 11:30 am - 12:30 pm

Pass Type: All Access Pass, Core Pass, Audio Pass

Topic: Audio, Programming

Format: Lecture

Vault Recording: Video

Audience Level: Intermediate

There are a lot of valuable algorithms and data structures used in game audio programming, from the basic to the advanced. This talk will go into detail about a few of them, starting with simpler ones and getting into more complex.

Echtra Games' Lead Gameplay Engineer Guy Somberg will cover details on the "how and why" of audio state machines, the vector math of third-person camera listeners (and why you may or may not need it), weak pointers for playing events (featuring variadic templates and perfect forwarding), circle-box intersection for volumetric sounds (the part in the book that's left as an exercise for the reader), and a thread-safe lock-free triple-buffer (aka juggling with razor blades).


Attendees will learn the details of implementing various algorithms and data structures that are useful in game audio programming, which can be applied to other disciplines.

Intended Audience

This is for audio programmers and programmers working on game audio features. It will also be interesting to programmers in other disciplines, since the algorithms discussed are applicable outside the realm of audio.