macOS alert tones · Message
PhotosMemoriesNotification
ccf12b67b8ee
Level measurements
Integrated-34.2 LUFS
Maximum momentary-30.5 LUFS
True peak-24.0 dBTP
RMS-40.9 dBFS
Active RMS-39.8 dBFS
Duration2.161 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -24.1 dBFS |
| Sample crest factor | 16.8 dB |
| True-peak crest factor | 16.9 dB |
| Active duration | 1.680 s |
Level over time
RMS · 10.0 ms · 217 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 centroid1671 Hz
Peak frequency1711 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 alert tones v26.6.1
Message
PhotosMemoriesNotification.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:15Z
Technical metadata
| SHA-256 | ccf12b67b8eed2487b30585037206cd89b890b3059bcc23c24173840cfb52007 |
|---|---|
| Analyzed | 2026-08-09T06:27:15Z |
| Codec | PCM signed 24-bit little-endian |
| Sample format | s32 · 24 bit |
| Sample rate | 48000 Hz |
| Channels | 2 |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |