Notification Sound MeasurementsMeasured levels and spectral characteristics of current OS and app event sounds
← Back to all measurements

Microsoft Teams · Message

00_teams_basic_notification_r4_default

9950da565141

Level measurements

Integrated-22.9 LUFS
Maximum momentary-21.4 LUFS
True peak-13.0 dBTP
RMS-28.5 dBFS
Active RMS-26.0 dBFS
Duration1.133 s
Maximum short-term—
Loudness range—
Sample peak-13.0 dBFS
Sample crest factor15.5 dB
True-peak crest factor15.5 dB
Active duration0.630 s

Level over time

RMS · 10.0 ms · 114 points

Active threshold -58.1 dBFS
Short-window RMS level over time 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. 0 -20 -40 -60 -80 0.00 0.28 0.57 0.85 1.13 RMS (dBFS) Time (seconds)

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 centroid605 Hz
Peak frequency469 Hz
200 Hz–8 kHz energy99.8 %
Third-octave band energy 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. 0 -20 -40 -60 -80 -100 -120 31.5 63 125 250 500 1k 2k 4k 8k 16k 25.0 Hz: -101.7 dBFS 31.5 Hz: -100.8 dBFS 40.0 Hz: -100.1 dBFS 50.0 Hz: -99.7 dBFS 63.0 Hz: -101.1 dBFS 80.0 Hz: -99.6 dBFS 100.0 Hz: -92.8 dBFS 125.0 Hz: -81.1 dBFS 160.0 Hz: -58.0 dBFS 200.0 Hz: -66.0 dBFS 250.0 Hz: -56.2 dBFS 315.0 Hz: -39.5 dBFS 400.0 Hz: -40.6 dBFS 500.0 Hz: -32.8 dBFS 630.0 Hz: -33.8 dBFS 800.0 Hz: -65.5 dBFS 1000.0 Hz: -60.0 dBFS 1250.0 Hz: -36.7 dBFS 1600.0 Hz: -65.8 dBFS 2000.0 Hz: -78.4 dBFS 2500.0 Hz: -87.1 dBFS 3150.0 Hz: -97.6 dBFS 4000.0 Hz: -105.3 dBFS 5000.0 Hz: -105.6 dBFS 6300.0 Hz: -104.1 dBFS 8000.0 Hz: -102.5 dBFS 10000.0 Hz: -101.4 dBFS 12500.0 Hz: -99.9 dBFS 16000.0 Hz: -98.8 dBFS Band energy (dBFS) Frequency (Hz)

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

Microsoft Teams v26198.202.4929.7171

Message

Contents/Resources/00_teams_basic_notification_r4_default.wav
Acquisition
official_distribution
Source observed
2026-08-09T06:29:46Z
Distribution package
URL ↗
Package SHA-256
dd5fab62b2003993a49ac86ecdc653500e970e29efd8c8b100f17d0adb30987e
Official source ↗

Technical metadata

SHA-2569950da5651418985d2cd4391945277894ea1768c49e523d76cc137bbba44954b
Analyzed2026-08-09T06:29:45Z
CodecAAC (Advanced Audio Coding)
Sample formatfltp
Sample rate48000 Hz
Channels2 · stereo
Analysis profilenotification-sound-db-bs1770-v2
FFmpegffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers

View canonical JSON →