GameSynth Runtime

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Freedom report

One barScore 5.3

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

GameSynth Runtime is ranked #19 of 23 in game audio middleware on Freedom251.

Compared on game audio middleware

Supported game engines: Unity, Unreal
Runtime platforms: game consoles, embedded devices

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The record

Purpose: GameSynth Runtime generates game sounds in real time from patches designed in the GameSynth tool and input parameters from a game.
Sound variation: Random parameter ranges can generate many sound variations from a single patch.
Memory: The page says that saving patch parameters instead of audio data gives a much lower memory footprint.
Interactive control: The runtime responds to game inputs through patch meta-parameters and can send synthesis events back to the game.
API: The API can be called from C++ or C and supports customization such as memory allocation and file I/O.
Scalability: The runtime is optimized for each platform target and lets users limit audio objects up to the patch level.
Middleware: The runtime can work independently or with middleware and can pass real-time audio buffers to Wwise, FMOD, or ADX2 voices.
Engine integration: The runtime can also be used with a target platform’s native library or an engine’s audio subsystem.
Preview tool: GSBViewer previews exported binary models, lets users adjust meta-parameters, and displays runtime API logs without requiring code.
Authoring: The GameSynth authoring tool includes editors for procedural audio models and a visual patching environment for creating models.
Intended users: Tsugi describes its procedural audio solutions as serving game development, movie creation, animation, audio post-production, product design, and embedded devices.
Company: Tsugi says it was founded by Nicolas Fournel in 2011.
Founded: 2011
Headquarters: Niigata, Japan

Where it ranks on Freedom251

Best Game Audio Middleware in 2026#19 of 23

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Sources

tsugi-studio.com/web/en/products-gamesynth-runtime.html· checked 4 Oct 2026
tsugi-studio.com/web/en/company.html· checked 4 Oct 2026