Amplitude Audio SDK
Amplitude Audio SDK: A free, flexible audio SDK for teams that want source-level control. Ranked #8 of 24 in Game Audio Middleware by our editors (7.8/10); pricing: Free plan; best for open-source teams needing full audio control.
At a glance
- Editor score7.8 / 10
- PricingFree plan
- Best forOpen-source teams needing full audio control
- Free planYes
- Paid fromFree
- Spatial audioYes
- Facts checked20 Sep 2026
Where it wins
- HRTF, Ambisonics, occlusion, and positional audio support
- Data-driven JSON authoring with sound banks and runtime events
- Plugin architecture for codecs, filters, and audio drivers
Where it doesn't
- The SDK remains in beta
- No official production release is available
- Official engine integrations cover four listed engines
Our verdict on Amplitude Audio SDK
Amplitude Audio SDK is an open-source C++ audio engine for game and VR projects. It targets teams that want direct control over authoring, runtime behavior, spatialization, mixing, and processing rather than a closed audio workflow. The SDK runs on Windows, Linux, and macOS, and officially integrates with O3DE, ezEngine, Godot, and Flax Engine.
Its feature set covers the core requirements of a game audio pipeline. HRTF-based spatial audio and Ambisonics rendering support immersive positioning, while obstruction and occlusion processing address environmental sound behavior. Teams can define assets through JSON-based, data-driven authoring, manage sound banks, and synchronize runtime sound events and states. Attenuation models, positional audio, buses, auto-ducking, and channel prioritization extend the system into mixing and playback control. A customizable processing pipeline and plugin architecture provide room for codecs, filters, and drivers.
The main trade-off is release maturity. Amplitude Audio SDK remains in beta, with source builds and development-only nightly builds available instead of an official production release. That makes it a better fit for open-source teams comfortable working close to the code and accepting an evolving development path. Its desktop platform coverage and four official engine integrations offer a focused foundation, while teams requiring broader verified engine or platform coverage should consider alternatives. Choose Amplitude for flexible audio control, spatial features, and an open-source model; avoid it when production-release maturity is a primary requirement.
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Amplitude Audio SDK pricing
Amplitude Audio SDK fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Spatial audio | Yes |
| Interactive music | Not verified |
| Dialogue management | Not verified |
| Supported game engines | O3DE, ezEngine, Godot, Flax Engine |
| Runtime platforms | Windows, Linux, macOS |
| Localization tools | Not verified |
| Audio streaming | Yes |
| Deployment | Self-hosted |
| Platforms | Windows, macOS, Linux |
| Support | Community, Docs |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 4 integrations: O3DE, ezEngine, Godot, Flax Engine See all → |
| Pricing | Free plan |
| Website | amplitudeaudiosdk.com |
| Facts checked | 20 Sep 2026 |
Amplitude Audio SDK integrations
Amplitude Audio SDK lists 4 integrations on its own site.
- O3DE
- ezEngine
- Godot
- Flax Engine
See all Amplitude Audio SDK integrations →
Alternatives to Amplitude Audio SDK
- FMOD StudioBroad game-audio middleware with adaptive authoring, profiling, localization, and engine integrations.9.4
- Audiokinetic WwiseA deep game-audio platform for productions that need advanced control and scale.9.2
- Miles Sound SystemA mature, Unreal-focused audio stack for complex cross-platform game productions.8.7
See all Amplitude Audio SDK alternatives →
Amplitude Audio SDK vs the competition
- Amplitude Audio SDK vs FMOD Studio
- Amplitude Audio SDK vs Audiokinetic Wwise
- Amplitude Audio SDK vs Miles Sound System
- Amplitude Audio SDK vs Elias
- Amplitude Audio SDK vs Fabric
- Amplitude Audio SDK vs Master Audio
Compare Amplitude Audio SDK with any tool side by side →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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