macOS VoiceOver event sounds · UI feedback
LayoutChanged
f1945e9460fb
Level measurements
Integrated-27.3 LUFS
Maximum momentary-27.0 LUFS
True peak-10.7 dBTP
RMS-26.7 dBFS
Active RMS-26.5 dBFS
Duration0.176 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -10.8 dBFS |
| Sample crest factor | 15.9 dB |
| True-peak crest factor | 16.0 dB |
| Active duration | 0.170 s |
Level over time
RMS · 9.977 ms · 18 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 centroid1048 Hz
Peak frequency1109 Hz
200 Hz–8 kHz energy100.0 %
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 VoiceOver event sounds v26.6.1
UI feedback
LayoutChanged.aiff
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:27Z
Technical metadata
| SHA-256 | f1945e9460fb728b5c56355918142c24fbcfa35000eea03d56202d1b49c70208 |
|---|---|
| Analyzed | 2026-08-09T06:27:24Z |
| Codec | PCM signed 16-bit big-endian |
| Sample format | s16 · 16 bit |
| Sample rate | 22050 Hz |
| Channels | 2 |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |