macOS telephony event sounds · Call state
let-me-join
bbbd8fdbc41d
Level measurements
Integrated-26.0 LUFS
Maximum momentary-23.8 LUFS
True peak-10.3 dBTP
RMS-30.0 dBFS
Active RMS-27.7 dBFS
Duration0.978 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -10.3 dBFS |
| Sample crest factor | 19.7 dB |
| True-peak crest factor | 19.7 dB |
| Active duration | 0.570 s |
Level over time
RMS · 10.0 ms · 98 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 centroid545 Hz
Peak frequency527 Hz
200 Hz–8 kHz energy99.8 %
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 telephony event sounds v26.6.1
Call state
let-me-join.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:21Z
Technical metadata
| SHA-256 | bbbd8fdbc41d5ebbdd37e17645add0eaabc5e2bbd285a6fea2991b818a954cef |
|---|---|
| Analyzed | 2026-08-09T06:27:20Z |
| 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 |