Notification Sound MeasurementsMeasured levels and spectral characteristics of current OS and app event sounds
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LINE · Unclassified

alarm2

d663c191ff38

Level measurements

Integrated-19.9 LUFS
Maximum momentary-17.0 LUFS
True peak-7.0 dBTP
RMS-22.6 dBFS
Active RMS-22.1 dBFS
Duration0.567 s
Maximum short-term—
Loudness range—
Sample peak-7.0 dBFS
Sample crest factor15.6 dB
True-peak crest factor15.6 dB
Active duration0.510 s

Level over time

RMS · 10.0 ms · 57 points

Active threshold -56.1 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 0.000 0.142 0.284 0.426 0.567 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 centroid1546 Hz
Peak frequency484 Hz
200 Hz–8 kHz energy99.7 %
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: -60.3 dBFS 31.5 Hz: -65.6 dBFS 40.0 Hz: -62.9 dBFS 50.0 Hz: -61.8 dBFS 63.0 Hz: -59.9 dBFS 80.0 Hz: -60.5 dBFS 100.0 Hz: -63.3 dBFS 125.0 Hz: -63.3 dBFS 160.0 Hz: -70.3 dBFS 200.0 Hz: -68.7 dBFS 250.0 Hz: -59.8 dBFS 315.0 Hz: -38.1 dBFS 400.0 Hz: -36.9 dBFS 500.0 Hz: -32.2 dBFS 630.0 Hz: -35.2 dBFS 800.0 Hz: -34.1 dBFS 1000.0 Hz: -30.3 dBFS 1250.0 Hz: -30.6 dBFS 1600.0 Hz: -29.7 dBFS 2000.0 Hz: -38.0 dBFS 2500.0 Hz: -33.5 dBFS 3150.0 Hz: -36.6 dBFS 4000.0 Hz: -37.2 dBFS 5000.0 Hz: -37.7 dBFS 6300.0 Hz: -39.8 dBFS 8000.0 Hz: -52.5 dBFS 10000.0 Hz: -52.0 dBFS 12500.0 Hz: -57.1 dBFS 16000.0 Hz: -59.1 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

LINE v26.3.1

Unclassified

Contents/Resources/alarm2.wav
Acquisition
local_installation
Source observed
2026-08-09T06:27:32Z
Official source ↗

Technical metadata

SHA-256d663c191ff38cb518194a4cce3e0db4d4ad7dd80e4f8734d7494f6c179e81da2
Analyzed2026-08-09T06:27:31Z
CodecPCM signed 16-bit little-endian
Sample formats16 · 16 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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