[HN Gopher] Show HN: AudioNimbus - Steam Audio's immersive spati...
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Show HN: AudioNimbus - Steam Audio's immersive spatial audio, now
in Rust
Hi HN! I'm excited to share AudioNimbus, a Rust library that brings
the powerful spatial audio capabilities of Steam Audio to the Rust
ecosystem. Whether you're building games, VR/AR experiences, or
simulations, AudioNimbus makes it easier to integrate realistic,
immersive audio into your projects. Steam Audio is a toolkit for
spatial audio, developed by Valve. It simulates realistic sound
propagation, including effects like directionality, distance
attenuation, reflections, and reverb. It's used in games like
_Half-Life: Alyx_ and _Counter-Strike 2_. Rust is increasingly
being adopted in game development, but there's a need to bridge the
gap with industry-proven tools like Steam Audio. AudioNimbus aims
to fill that gap, making it easier to integrate immersive audio
into Rust projects. AudioNimbus supports a variety of spatial
audio effects, including: - _Head-Related Transfer Function
(HRTF)_ : Simulates how the listener's ears, head, and shoulders
shape sound perception, providing the acoustic cues the brain uses
to infer direction and distance. - _Ambisonics and surround sound_
: Uses multiple audio channels to create the sensation of sound
coming from specific directions. - _Sound propagation_ : Models
how sound is affected as it travels through its environment,
including effects like distance attenuation and interaction with
physical obstacles of varying materials. - _Reflections_ :
Simulates how sound waves reflect off surrounding geometry,
mimicking real-world acoustic behavior. The project is open-source
on GitHub: https://github.com/MaxenceMaire/audionimbus It includes
code snippets and examples to help you get started. Contributions
and feedback are welcome! I'd love to hear your thoughts and see
what you build with AudioNimbus. Feel free to share your projects,
ask questions, or suggest improvements. Happy hacking!
Author : mxncmr
Score : 68 points
Date : 2025-03-12 15:58 UTC (7 hours ago)
(HTM) web link (github.com)
(TXT) w3m dump (github.com)
| rendaw wrote:
| This sounds really cool, although I have no idea how it works
| (does it involve 3d geometry? pbr textures or something?). Two
| questions I had: Does steam audio require integration with the
| steam client? Are there additional licenses?
| Tsiklon wrote:
| Steam audio is apache v2
| https://github.com/ValveSoftware/steam-audio/blob/master/LIC...
| cma wrote:
| Tracing against 3d, or bake to a field of probes.
| mxncmr wrote:
| > Does steam audio require integration with the steam client?
|
| No, Steam Audio is a standalone library and does not require
| integration with the Steam client.
|
| > Are there additional licenses?
|
| Steam Audio is released under the Apache 2.0 license, which is
| permissive and allows for both open-source and commercial use.
|
| As for how it works: some effects, like ambisonics or HRTF-
| based spatialization, don't require 3D geometry and work purely
| based on the direction and distance of sound sources relative
| to the listener.
|
| Other effects, like occlusion, reflections, and reverb, rely on
| a scene description (the 3D geometry and material properties of
| objects in the environment). For example, sound waves can
| reflect off walls or be absorbed by soft materials.
|
| Simulating these effects in real-time can be computationally
| expensive, especially for complex scenes. To optimize
| performance, effects like reflections can be pre-baked using
| probes placed throughout the scene.
| itishappy wrote:
| https://valvesoftware.github.io/steam-audio/
|
| Looks like it uses emitter positions and a virtual head. It
| also has the ability to utilize untextured scene geometry.
| hideload wrote:
| Rust deserves some good libraries like these!
| mxncmr wrote:
| Thank you! I'm excited to see how Rust evolves in the game dev
| scene in the coming years. While I think the ecosystem isn't
| quite mature enough yet for widespread adoption by larger
| studios, it's growing rapidly, and I believe Rust offers some
| really interesting advantages that make it a strong contender
| for the future of game dev. Let me know if you ever build
| something cool in this space!
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