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

macOS VoiceOver event sounds · UI feedback

MouseDown

a04bba06724b

Level measurements

Integrated-32.7 LUFS
Maximum momentary-32.7 LUFS
True peak-8.5 dBTP
RMS-26.2 dBFS
Active RMS-25.5 dBFS
Duration0.024 s
Maximum short-term—
Loudness range—
Sample peak-8.9 dBFS
Sample crest factor17.3 dB
True-peak crest factor17.7 dB
Active duration0.020 s

Level over time

RMS · 10.0 ms · 3 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 0.000 0.006 0.012 0.018 0.024 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 centroid3870 Hz
Peak frequency5093 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: -85.3 dBFS 31.5 Hz: -83.6 dBFS 40.0 Hz: -81.5 dBFS 50.0 Hz: -76.2 dBFS 63.0 Hz: -72.0 dBFS 80.0 Hz: -68.2 dBFS 100.0 Hz: -66.4 dBFS 125.0 Hz: -64.3 dBFS 160.0 Hz: -59.9 dBFS 200.0 Hz: -56.2 dBFS 250.0 Hz: -52.8 dBFS 315.0 Hz: -51.7 dBFS 400.0 Hz: -52.6 dBFS 500.0 Hz: -52.7 dBFS 630.0 Hz: -43.6 dBFS 800.0 Hz: -37.6 dBFS 1000.0 Hz: -45.8 dBFS 1250.0 Hz: -48.8 dBFS 1600.0 Hz: -42.8 dBFS 2000.0 Hz: -35.4 dBFS 2500.0 Hz: -45.3 dBFS 3150.0 Hz: -35.4 dBFS 4000.0 Hz: -38.5 dBFS 5000.0 Hz: -30.3 dBFS 6300.0 Hz: -43.4 dBFS 8000.0 Hz: -37.2 dBFS 10000.0 Hz: -48.5 dBFS 12500.0 Hz: -53.4 dBFS 16000.0 Hz: -64.5 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 VoiceOver event sounds v26.6.1

UI feedback

MouseDown.aiff
Acquisition
local_installation
Source observed
2026-08-09T06:27:27Z
Official source ↗

Technical metadata

SHA-256a04bba06724bfe537c8c7bdd804522a86cb7261ec4feb001812153ab4204272d
Analyzed2026-08-09T06:27:25Z
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

View canonical JSON →