macOS system sounds · System alert
Frog
318a9af15546
Level measurements
Integrated-31.1 LUFS
Maximum momentary-31.1 LUFS
True peak-15.3 dBTP
RMS-36.6 dBFS
Active RMS-28.5 dBFS
Duration0.719 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -15.3 dBFS |
| Sample crest factor | 21.3 dB |
| True-peak crest factor | 21.3 dB |
| Active duration | 0.110 s |
Level over time
RMS · 10.0 ms · 72 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 centroid749 Hz
Peak frequency492 Hz
200 Hz–8 kHz energy97.8 %
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 system sounds v26.6.1
System alert
Frog.aiff
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:14Z
Technical metadata
| SHA-256 | 318a9af15546772bb0ce2bdebc2cd250ae7130d680dbf49835f1cc5960267f99 |
|---|---|
| Analyzed | 2026-08-09T06:27:13Z |
| Codec | PCM signed 24-bit big-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 |