macOS CoreAudio event sounds · Call state
call_waiting_tone_ansi
43f1ca7a1817
Level measurements
Integrated-24.7 LUFS
Maximum momentary-22.9 LUFS
True peak-18.0 dBTP
RMS-36.2 dBFS
Active RMS-21.0 dBFS
Duration10.000 s
| Maximum short-term | -31.7 LUFS |
|---|---|
| Loudness range | 23.0 LU |
| Sample peak | -18.0 dBFS |
| Sample crest factor | 18.2 dB |
| True-peak crest factor | 18.2 dB |
| Active duration | 0.300 s |
Level over time
RMS · 25.011 ms · 400 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 centroid440 Hz
Peak frequency441 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 CoreAudio event sounds v26.6.1
Call state
telephony/call_waiting_tone_ansi.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:20Z
Technical metadata
| SHA-256 | 43f1ca7a1817dd7c75cb30cfe7bd06f5d5e37bcbbab424043abcef206724024e |
|---|---|
| Analyzed | 2026-08-09T06:27:19Z |
| Codec | PCM signed 16-bit little-endian |
| Sample format | s16 · 16 bit |
| Sample rate | 44100 Hz |
| Channels | 1 |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |