emulator: testaudio_callback type: test source: "https://github.com/libretro/libretro-samples" profiled_date: "2026-03-18" core_version: "v1" display_name: "TestAudio Callback" cores: - testaudio_callback systems: [] notes: | Audio callback test core from libretro-samples. Tests the RETRO_ENVIRONMENT_SET_AUDIO_CALLBACK path where audio runs on a separate thread managed by the frontend. Generates a simple tone to validate callback-driven audio output. No system files, BIOS, or firmware required. Not an emulator. files: []