Slack · Message
knock_brush
530cc90e941b
Level measurements
Integrated-29.3 LUFS
Maximum momentary-27.4 LUFS
True peak-10.3 dBTP
RMS-31.3 dBFS
Active RMS-30.9 dBFS
Duration0.549 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -10.4 dBFS |
| Sample crest factor | 20.9 dB |
| True-peak crest factor | 21.0 dB |
| Active duration | 0.500 s |
Level over time
RMS · 10.0 ms · 55 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 centroid5066 Hz
Peak frequency1206 Hz
200 Hz–8 kHz energy65.5 %
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
Slack v4.51.180
Message
Contents/Resources/knock_brush.mp3
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:30Z
Technical metadata
| SHA-256 | 530cc90e941b532c4acb7ae100682c0c5adce2b6d67151dc0a8567bb474b004b |
|---|---|
| Analyzed | 2026-08-09T06:27:30Z |
| Codec | MP3 (MPEG audio layer 3) |
| Sample format | fltp |
| Sample rate | 44100 Hz |
| Channels | 2 · stereo |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |