Standalone audio and MIDI¶
The DW-303 standalone application (its own repository), built on RAVET's
StandaloneWindow, Audio/MIDI popup, ravet-device and ravet-midi-device.
Windows/Linux runs were on 5 November 2026
(receipt; Windows MIDI
receipt).
| Platform | Audio output | MIDI input |
|---|---|---|
| macOS arm64 | Owner report: exercised; device not recorded | Owner report: exercised; device not recorded |
| Arch Linux x86_64 (PipeWire 1.6.9) | ALSA PipeWire Sound Server (alsa:pipewire) into PipeWire's Dummy Output null sink; capture of the app's stream verified |
ALSA sequencer Midi Through Port-0 (14:0); notes produced the expected pitches in that capture |
| Windows 11 x64 VM (26100) | WASAPI Speakers (High Definition Audio Device) (emulated HDA); WASAPI loopback capture verified the demo pattern |
WinMM RAVET Loopback B, a Windows MIDI Services in-box MIDI 2.0 loopback configured on the VM (notes sent to RAVET Loopback A); notes produced the expected pitches in a WASAPI loopback capture, and no sound with no MIDI input selected |
No hardware output on Linux, physical MIDI device, latency or callback deadline was measured. Both MIDI inputs are software loopbacks. On Linux the window's rendered content and a clean quit were not confirmed. On Windows the window rendered (screendump) and quit cleanly with saved state.