macOS CoreAudio event sounds · UI feedback
Grab
b81ab305c540
Level measurements
Integrated-30.7 LUFS
Maximum momentary-28.1 LUFS
True peak-12.4 dBTP
RMS-34.8 dBFS
Active RMS-33.7 dBFS
Duration0.493 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -12.6 dBFS |
| Sample crest factor | 22.2 dB |
| True-peak crest factor | 22.4 dB |
| Active duration | 0.380 s |
Level over time
RMS · 10.0 ms · 50 points
Each point is the channel-combined RMS of a non-overlapping frame. Values below −80 dBFS are pinned to the chart floor for display; the canonical JSON retains measured values, and digital silence remains null.
Frequency characteristics
Spectral centroid5060 Hz
Peak frequency1884 Hz
200 Hz–8 kHz energy75.9 %
Frequency is shown on the horizontal axis and band energy on the vertical axis. Values below −120 dBFS are pinned to the chart floor for display.
Current source occurrences
macOS CoreAudio event sounds v26.6.1
UI feedback
system/Grab.aif
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:20Z
macOS CoreAudio event sounds v26.6.1
UI feedback
system/Shutter.aif
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:20Z
Technical metadata
| SHA-256 | b81ab305c54039dbdb7ab400a5e1a542b45ac16f3e3a04e4b4dee321456f8ddd |
|---|---|
| Analyzed | 2026-08-09T06:27:17Z |
| Codec | PCM signed 24-bit big-endian |
| Sample format | s32 · 24 bit |
| Sample rate | 44100 Hz |
| Channels | 2 |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |