Slack · Call state
calls_confirmation_v2
e77e740ccd39
Level measurements
Integrated-34.8 LUFS
Maximum momentary-30.9 LUFS
True peak-15.4 dBTP
RMS-35.3 dBFS
Active RMS-32.9 dBFS
Duration0.994 s
| Maximum short-term | — |
|---|---|
| Loudness range | — |
| Sample peak | -15.4 dBFS |
| Sample crest factor | 20.0 dB |
| True-peak crest factor | 19.9 dB |
| Active duration | 0.560 s |
Level over time
RMS · 10.0 ms · 100 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 centroid1136 Hz
Peak frequency754 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
Slack v4.51.180
Call state
Contents/Resources/calls_confirmation_v2.mp3
- Acquisition
local_installation- Source observed
- 2026-08-09T06:27:30Z
Technical metadata
| SHA-256 | e77e740ccd395604e51e14e54db33535d4785e2065fcf86b64a17f207efe9079 |
|---|---|
| Analyzed | 2026-08-09T06:27:29Z |
| Codec | MP3 (MPEG audio layer 3) |
| Sample format | fltp |
| Sample rate | 44100 Hz |
| Channels | 1 · mono |
| Analysis profile | notification-sound-db-bs1770-v2 |
| FFmpeg | ffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers |