macOS CoreAudio event sounds · UI feedback
Mouse Keys ON
54ad86e4ed34
Level measurements
Integrated-41.7 LUFS
Maximum momentary-39.3 LUFS
True peak-24.2 dBTP
RMS-44.3 dBFS
Active RMS-43.7 dBFS
Duration0.302 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -24.6 dBFS |
| Sample crest factor | 19.7 dB |
| True-peak crest factor | 20.1 dB |
| Active duration | 0.260 s |
Level over time
RMS · 10.0 ms · 31 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 centroid4736 Hz
Peak frequency4436 Hz
200 Hz–8 kHz energy91.6 %
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 CoreAudio event sounds v26.6.1
UI feedback
accessibility/Mouse Keys ON.aif
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:20Z
Technical metadata
| SHA-256 | 54ad86e4ed3482d85850619021817ffcc74778e6702f87a6b52e2917789f19c6 |
|---|---|
| Analyzed | 2026-08-09T06:27:16Z |
| 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 |