macOS VoiceOver event sounds · UI feedback
PopupAppeared
b2ec85222ea8
Level measurements
Integrated-24.6 LUFS
Maximum momentary-23.8 LUFS
True peak-10.4 dBTP
RMS-22.9 dBFS
Active RMS-22.8 dBFS
Duration0.186 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -10.4 dBFS |
| Sample crest factor | 12.5 dB |
| True-peak crest factor | 12.5 dB |
| Active duration | 0.180 s |
Level over time
RMS · 10.0 ms · 19 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 centroid503 Hz
Peak frequency463 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
PopupAppeared.aiff
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:27Z
Technical metadata
| SHA-256 | b2ec85222ea8a32306db02030ee5b3611097d240dc0b9aab5e86a7c202d54177 |
|---|---|
| Analyzed | 2026-08-09T06:27:25Z |
| 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 |