A wooden thud with a latch click on top, plus a very short room echo. Use it for scene transitions, someone leaving a meeting, or a reveal that is less exciting than expected.
latch: noise 8 ms, band-pass 2.4 kHz knock: three noise layers, 45 ms band-pass 230 Hz Q 0.9, 30 ms band-pass 420 Hz Q 1.0, 26 ms band-pass 760 Hz Q 1.1 — the part small speakers can actually play thud: sine 130 Hz sliding to 80 Hz over 140 ms, plus triangle 260 Hz falling to 165 Hz very short echo: 65 ms, 18% wet envelope: 1 ms attack, 120 ms decay on the thud, 40 ms on the knock