macOS telephony event sounds · Call state
mute_fail
21e95efdddde
Level measurements
Integrated-26.7 LUFS
Maximum momentary-25.5 LUFS
True peak-12.5 dBTP
RMS-27.7 dBFS
Active RMS-26.8 dBFS
Duration0.382 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -12.5 dBFS |
| Sample crest factor | 15.3 dB |
| True-peak crest factor | 15.2 dB |
| Active duration | 0.310 s |
Level over time
RMS · 10.0 ms · 39 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 centroid567 Hz
Peak frequency527 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 telephony event sounds v26.6.1
Call state
mute_fail.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:21Z
Technical metadata
| SHA-256 | 21e95efddddee62e796ac013ade6f617150fac602fca6fe54db4c6e54bd80c01 |
|---|---|
| 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 |