Notification Sound MeasurementsMeasured levels and spectral characteristics of current OS and app event sounds
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Mail · Completion

Mail Sent

fb03bad343d6

Level measurements

Integrated-31.8 LUFS
Maximum momentary-29.1 LUFS
True peak-17.8 dBTP
RMS-37.7 dBFS
Active RMS-35.9 dBFS
Duration1.514 s
Maximum short-term—
Loudness range—
Sample peak-17.8 dBFS
Sample crest factor19.9 dB
True-peak crest factor19.9 dB
Active duration0.990 s

Level over time

RMS · 10.0 ms · 152 points

Active threshold -60.0 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 0.38 0.76 1.14 1.51 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 centroid1036 Hz
Peak frequency560 Hz
200 Hz–8 kHz energy98.1 %
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: -104.6 dBFS 31.5 Hz: -99.2 dBFS 40.0 Hz: -92.5 dBFS 50.0 Hz: -87.4 dBFS 63.0 Hz: -82.5 dBFS 80.0 Hz: -79.4 dBFS 100.0 Hz: -69.9 dBFS 125.0 Hz: -64.3 dBFS 160.0 Hz: -65.4 dBFS 200.0 Hz: -62.3 dBFS 250.0 Hz: -58.8 dBFS 315.0 Hz: -56.7 dBFS 400.0 Hz: -51.9 dBFS 500.0 Hz: -48.9 dBFS 630.0 Hz: -48.7 dBFS 800.0 Hz: -48.8 dBFS 1000.0 Hz: -48.6 dBFS 1250.0 Hz: -49.7 dBFS 1600.0 Hz: -52.4 dBFS 2000.0 Hz: -53.6 dBFS 2500.0 Hz: -54.3 dBFS 3150.0 Hz: -57.2 dBFS 4000.0 Hz: -61.0 dBFS 5000.0 Hz: -65.4 dBFS 6300.0 Hz: -66.0 dBFS 8000.0 Hz: -67.0 dBFS 10000.0 Hz: -70.5 dBFS 12500.0 Hz: -72.9 dBFS 16000.0 Hz: -75.1 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

Mail v16.0

Completion

Contents/Resources/Mail Sent.aiff
Acquisition
local_installation
Source observed
2026-08-09T06:27:28Z
Official source ↗

Technical metadata

SHA-256fb03bad343d643daf8c11397a22422f47a3fb71b97b2a9e8d0282595e8c3da6e
Analyzed2026-08-09T06:27:28Z
CodecPCM signed 24-bit big-endian
Sample formats32 · 24 bit
Sample rate44100 Hz
Channels2
Analysis profilenotification-sound-db-bs1770-v2
FFmpegffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers

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