UI & app sounds
Message sent
UI & app sounds · 2026-10-06
Related guide: How to Write a Good Sound Effect Prompt (With UI and App Sound Examples)
Claude Opus 5.5
Fast tempoBrightUpbeat
New
Space
Prompt
A quick, optimistic 0.6-second "message sent" in G. It opens on frame 0 with a soft puff of air that swells into an upward swish. Two decorrelated noise bands sweep from about 600 Hz to 9 kHz and glide from slightly left to slightly right, and a faint breathy D5-to-G6 whistle rides inside them to give the motion a pitch direction. At 140 ms the swish resolves into a light glassy pluck: a G6 with a quieter D7 fifth above and a soft G5 body. Its partials follow glass-like inharmonic ratios, with a tiny bright tink on the attack and a short, airy room. Nothing heavy sits below 150 Hz and the stereo width lives only above 650 Hz. The pluck rings out in about a third of a second and the file ends in silence, so it is gone before the next thing happens.
Metrics
- Integrated LUFS (approx.)
- -17 LUFS
- True peak
- -8 dBTP
- Momentary max
- -15.3 LUFS
- Short-term max
- —
- Length
- 0.6s · 28,800 samples @ 48000 Hz
- Target master
- -17 LUFS · peak ≤ -1 dBTP
- Checks
- Passed
Spectrogram

Generated code
Loading…Timing & cues
30 fps · seed 3303
- Frame 0: send
Swish: two decorrelated TPT-SVF noise bands sweeping 600 Hz to 9 kHz with a left-to-right drift and a faint D5-to-G6 whistle, from a soft air puff on frame 0. It resolves at 140 ms into a glassy G6/D7/G5 pluck (inharmonic 1/2.32/4.25/6.63 partials, tiny tink) with a short airy room. Mid high-passed at 140 Hz and side at 650 Hz, so the low end stays light and mono.
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