Add the action and select your music-free Jarvis file. Open System Settings > General > Login Items .
It sounds like a native OS feature rather than a movie clip playing in the background. jarvis startup sound without music
| Step | Action | |------|--------| | 1 | Create 4 short notes: (descending) | | 2 | Add a 5th note: C5 (higher octave) at the end | | 3 | Use a pure sine wave (no vibrato) | | 4 | Envelope: Attack 5ms, Decay 300ms, Sustain 0 (pluck-like) | | 5 | Add very short reverb (room size small, decay <0.5s) | | 6 | No reverb tail overlapping notes – keep it dry/robotic | Add the action and select your music-free Jarvis file