Docs / Nebula Sound System manual / 19. Troubleshooting
19. Troubleshooting
| Symptom | What to do |
|---|---|
| No sound | Settings → Audio: check the output device. The top bar says "Sound card closed" when nothing is open. Press a key with an instrument track selected. |
| Crackles / dropouts | Raise the buffer size (Settings → Audio). Close other heavy programs. |
| A MIDI keyboard is not seen | Settings → MIDI: is it listed and enabled? Re-plug it — devices are picked up hot. (On macOS, MIDI input is not implemented yet.) |
| The app starts slowly | The first start copies its sample library; later starts are faster. The bottom strip shows the startup time. |
| It crashed | Start it again: it offers to recover the auto-saved work. Then Help → Report a Bug — the report goes to the project with the log attached. |
| Where is the log? | The Logging settings page says where; the LOG card in the bottom panel shows the same lines live. |
| Where are my exports? | The message after a render names the file; usually <data folder>/exports. |
Updated 2026-11-02