Notification Sound MeasurementsMeasured levels and spectral characteristics of current OS and app event sounds
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macOS alert tones · System alert

Portal-EncoreInfinitum

a254a711aee7

Level measurements

Integrated-27.0 LUFS
Maximum momentary-24.4 LUFS
True peak-13.7 dBTP
RMS-31.8 dBFS
Active RMS-30.8 dBFS
Duration2.000 s
Maximum short-term—
Loudness range—
Sample peak-13.7 dBFS
Sample crest factor18.1 dB
True-peak crest factor18.1 dB
Active duration1.580 s

Level over time

RMS · 10.0 ms · 200 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 0.50 1.00 1.50 2.00 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 centroid589 Hz
Peak frequency469 Hz
200 Hz–8 kHz energy100.0 %
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: -99.1 dBFS 31.5 Hz: -96.9 dBFS 40.0 Hz: -95.9 dBFS 50.0 Hz: -95.0 dBFS 63.0 Hz: -95.1 dBFS 80.0 Hz: -96.1 dBFS 100.0 Hz: -98.2 dBFS 125.0 Hz: -99.1 dBFS 160.0 Hz: -94.1 dBFS 200.0 Hz: -91.7 dBFS 250.0 Hz: -78.0 dBFS 315.0 Hz: -78.3 dBFS 400.0 Hz: -61.5 dBFS 500.0 Hz: -37.1 dBFS 630.0 Hz: -42.8 dBFS 800.0 Hz: -47.4 dBFS 1000.0 Hz: -59.8 dBFS 1250.0 Hz: -47.5 dBFS 1600.0 Hz: -61.0 dBFS 2000.0 Hz: -64.9 dBFS 2500.0 Hz: -61.0 dBFS 3150.0 Hz: -77.5 dBFS 4000.0 Hz: -83.5 dBFS 5000.0 Hz: -71.4 dBFS 6300.0 Hz: -81.4 dBFS 8000.0 Hz: -90.3 dBFS 10000.0 Hz: -87.4 dBFS 12500.0 Hz: -85.6 dBFS 16000.0 Hz: -88.7 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

macOS alert tones v26.6.1

System alert

EncoreInfinitum/Portal-EncoreInfinitum.caf
Acquisition
local_installation
Source observed
2026-08-09T06:27:15Z
Official source ↗

Technical metadata

SHA-256a254a711aee746fe5edc84482664d73c787b97e4cf0c2e9405ad1958df1c45ab
Analyzed2026-08-09T06:27:15Z
CodecPCM signed 24-bit little-endian
Sample formats32 · 24 bit
Sample rate48000 Hz
Channels2 · stereo
Analysis profilenotification-sound-db-bs1770-v2
FFmpegffmpeg version 8.1.2 Copyright (c) 2000-2026 the FFmpeg developers

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