Elias vs OpenAL Soft

Elias 4 is game-audio middleware and a sound engine for interactive soundscapes and adaptive music. Elias Studio gives composers and sound designers visual scripting for sample-perfect audio graphs combining logic, game parameters, playback, and DSP. Its music system supports instrument and track rules, motifs, stingers, automatic loops, random segments, and musical transitions. Spatialized 3D audio and processing such as filters, compressors, and reverbs are included. While a game runs, users can edit patches, replace sound files, and mix without rebuilding or using sound banks. Unity and Godot integrations are provided, and custom or other engines can be integrated. Listed runtime targets include PC, Mac, PlayStation 5, Nintendo Switch, Nintendo Switch 2, iOS, and Android. Elias is written in C and C++, supports Python tooling and automations, and offers source-code access by separate agreement at higher license tiers. Licenses are per game; console releases cost extra per platform, while same-game DLC is covered. Explorer Standard costs €5,850, paid once, and Colonizer Premium costs €15,000, paid once. A free evaluation version is available by request.

OpenAL Soft is a free, LGPL-licensed software implementation of the OpenAL 3D audio API for playing sound in virtual 3D environments. It handles distance attenuation, Doppler shift, and directional emitters. The EFX extension adds effects such as air absorption, occlusion, and environmental reverb. The library supports streaming audio, multichannel buffers, and audio capture, with output options including mono, stereo, 4-channel, 5.1, 7.1, HRTF, UHJ, and B-Format. Implemented audio backends include PipeWire, PulseAudio, ALSA, WASAPI, CoreAudio, JACK, SDL2, and SDL3. Developers can use loopback devices to connect playback with other audio systems and incorporate the library into projects. The latest release identified on the site is version 1.25.2, available as source and Win32 and Win64 binaries. Building requires CMake 3.13 or newer and a compiler supporting C++20; Autotools is not supported. Runtime platforms listed are Windows, macOS, Linux, and Android. The project directs bug reports and feature requests to its GitHub issue tracker and points users to the #openal IRC channel for help.