Cavern is a fully adaptive object-based audio engine and upmixer without limitations for home, cinema, and stage use.


  • Unlimited objects and output channels without position restrictions
  • Custom audio format for storing spatial mixes
  • Upconverter for regular surround mixes
  • Full cinema and stage support with realtime conversion
  • Cavern QuickEQ corrects the room's frequency response in seconds
  • HRIR headphone virtualizer
  • Mix repositioning based on occupied seats
  • Seat movement generation
  • Unity-like listener and source functionality
  • Ultra low latency, even the upconverter can work from as low as one sample per frame



Cavern is a performance software written in an environment that's not ready for it. This means that clean code policies like DRY are broken many times if the code is faster this way, usually by orders of magnitude. Most changes should be benchmarked in the target environment, and the fastest code should be chosen, regardless of how bad it looks. This, however, can't result in inconsistent interfaces. In that case, wrappers should be used with the least possible method calls.


While Cavern itself is open-source, the setup utility and converter interfaces are not and will not be. However, their functionality is almost entirely using this plugin. The driver and converters can be downloaded from the Cavern website. The scripting API and the downloadable source code is strictly for the API.


By downloading, using, copying, modifying, or compiling the source code or a build, you are accepting these terms. The source code, just like the compiled software, is given to you for free, but without any warranty. It is not guaranteed to work, and the developer is not responsible for any damages from the use of the software. You are allowed to make any modifications, and release them for free under this licence. If you release a modified version, you have to link this repository as its source. You are not allowed to sell any part of the original or the modified version. You are also not allowed to show advertisements in the modified software. The software must be named with a link to the creator ( when used in public (e.g. for screenings) or commercially (e.g. as an API in another software), also, the original creator's permission is required for public use. If you include these code or any part of the original version in any other project, these terms still apply.