macOS VoiceOver event sounds · UI feedback
StyleChangeDouble
a2a40bac68a9
Level measurements
Integrated-33.9 LUFS
Maximum momentary-33.9 LUFS
True peak-12.3 dBTP
RMS-30.8 dBFS
Active RMS-29.6 dBFS
Duration0.105 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -12.3 dBFS |
| Sample crest factor | 18.5 dB |
| True-peak crest factor | 18.5 dB |
| Active duration | 0.080 s |
Level over time
RMS · 10.0 ms · 11 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 centroid387 Hz
Peak frequency291 Hz
200 Hz–8 kHz energy98.5 %
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
StyleChangeDouble.aiff
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:27Z
Technical metadata
| SHA-256 | a2a40bac68a9f22cef6b7f46e69e2f577e11b56e74b8cec708dc482eefeb7d78 |
|---|---|
| Analyzed | 2026-08-09T06:27:26Z |
| 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 |