macOS VoiceOver event sounds · UI feedback
Capitals
1b2598300488
Level measurements
Integrated-36.7 LUFS
Maximum momentary-36.7 LUFS
True peak-21.4 dBTP
RMS-38.6 dBFS
Active RMS-35.6 dBFS
Duration0.159 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -22.3 dBFS |
| Sample crest factor | 16.3 dB |
| True-peak crest factor | 17.2 dB |
| Active duration | 0.080 s |
Level over time
RMS · 10.0 ms · 16 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 centroid4585 Hz
Peak frequency4102 Hz
200 Hz–8 kHz energy88.6 %
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
Capitals.aiff
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:27Z
Technical metadata
| SHA-256 | 1b2598300488d85258cf8e00e1f8207a1be4f44fd241806f9ef84886bf43b506 |
|---|---|
| Analyzed | 2026-08-09T06:27:22Z |
| Codec | PCM signed 16-bit big-endian |
| Sample format | s16 · 16 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 |