macOS CoreAudio event sounds · Call state
mic_mute
855ec0ac42a1
Level measurements
Integrated-26.6 LUFS
Maximum momentary-25.6 LUFS
True peak-11.9 dBTP
RMS-28.0 dBFS
Active RMS-27.1 dBFS
Duration0.394 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -11.9 dBFS |
| Sample crest factor | 16.1 dB |
| True-peak crest factor | 16.1 dB |
| Active duration | 0.320 s |
Level over time
RMS · 10.0 ms · 40 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 centroid546 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 CoreAudio event sounds v26.6.1
Call state
system/mic_mute.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:20Z
macOS telephony event sounds v26.6.1
Call state
mute.caf
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:21Z
Technical metadata
| SHA-256 | 855ec0ac42a147aa43b635f7fd30acb09d4b0c77f8f6348c125a04a9d46f4fe4 |
|---|---|
| Analyzed | 2026-08-09T06:27:18Z |
| 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 |