macOS alert tones · System alert
Rattle-EncoreInfinitum
fc79d6371829
Level measurements
Integrated-25.9 LUFS
Maximum momentary-23.7 LUFS
True peak-10.2 dBTP
RMS-28.9 dBFS
Active RMS-28.5 dBFS
Duration1.277 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -10.2 dBFS |
| Sample crest factor | 18.7 dB |
| True-peak crest factor | 18.7 dB |
| Active duration | 1.170 s |
Level over time
RMS · 10.0 ms · 128 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 centroid427 Hz
Peak frequency445 Hz
200 Hz–8 kHz energy99.6 %
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 alert tones v26.6.1
System alert
EncoreInfinitum/Rattle-EncoreInfinitum.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:15Z
Technical metadata
| SHA-256 | fc79d637182920c818bbcb1e070d8a02c525460d203dcb09ea6dcff24e35b1c2 |
|---|---|
| Analyzed | 2026-08-09T06:27:15Z |
| Codec | PCM signed 24-bit little-endian |
| Sample format | s32 · 24 bit |
| Sample rate | 48000 Hz |
| Channels | 2 · stereo |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |