Audita app icon

Version 1.5.1

Audita

A menu-bar SPL meter built to do two jobs at once. Pin your monitor chain to a calibrated reference and stay there. Track how much hearing the day has cost using NIOSH-aligned dose accumulation. Both run passively while you work.

macOS SPL meter Target level Hearing health NIOSH

New in 1.5: Audita is ready for macOS 27. New app icon and Liquid Glass on the Welcome and License windows. Runs on macOS 14 and later. What's new →

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$19.99 · 7-day free trial · one-time purchase · macOS 14+

Read the user guide → Have questions? Read the FAQ →
Audita at a glance - Monitoring Discipline gauge, live A-weighted SPL, NIOSH dose tracker, calibrated reference targets, and the Send-to-Lyra workflow
Audita menu bar popover - Safe dose tier (green)
Audita menu bar popover - Caution dose tier (yellow)
Audita menu bar popover - Danger dose tier (red)
Audita's six desktop widgets: On Target (weekly monitoring discipline), Today's Dose, Latest SPL, Safe Streak, Weekly Exposure (EU L_EX,w), and the Overview tile, shown across small, medium, and large sizes
Audita session history window showing past recording sessions with dose and peak levels
Audita target-level calibration wizard - pin the monitor controller to a known dBA reference
Audita's Send to Lyra sheet - write a calibration straight into one of Lyra's three reference slots
Audita's Calibration Health card - level provenance, mic correction state, and when the rig last passed a self-check, with the saved profile in use named below

Dig deeper

The full reference · 4 docs
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User Guide

Every feature, every setting, every recipe. The full reference.

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API reference

Programmatic interfaces, the audita:// URL scheme, and preference keys.

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Release notes

Version history. What changed in each release and why.

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FAQ

Common questions, common gotchas, the things people email about.

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Why it exists

Where the monitor knob is actually set, and how much hearing the day has cost. Two questions almost no studio answers in numbers.

The monitor knob drifts. A decibel up when playback feels quiet, half a decibel back when a client walks in. None of those moves register as wrong; together they mean the engineer in the afternoon is making decisions at a different level than the one in the morning.

Long studio sessions at moderate levels accumulate exactly the same way loud ones do, just more quietly. The ear doesn't distinguish one very loud hour from eight moderately loud ones - the damage arithmetic is the same. Most professionals know this abstractly; almost none have ever measured their daily exposure.

One measurement chain, two jobs. Audita answers both from the menu bar. The same A-weighted SPL reading that updates the dose counter feeds the calibration tools, the Leq statistics, the target-level wizard, and the Lyra integration.

each +3 dB halves the safe time 8 h 4 h 2 h 1 h 30 min 15 min 85 dBA 88 dBA 91 dBA 94 dBA 97 dBA 100 dBA below 80 dBA, no dose accumulates · NIOSH REL, 3 dB exchange rate 85 dBA 88 dBA 91 dBA 94 dBA 97 dBA 100 dBA 8 h 4 h 2 h 1 h 30 min 15 min below 80 dBA, no dose accumulates
The dose arithmetic. NIOSH's 85 dBA criterion gives an 8-hour day; each 3 dB step above it cuts the time in half. Audita runs this against the SPL at your listening position, all session.

Features

Real-time SPL
Continuous A-weighted level at 10 Hz, exponentially smoothed for a stable readout. Dose, Leq, and session stats accumulate from the true energy of every sample, not the smoothed display value.
Live menu bar
Show a live SPL number right in the menu bar - dBA, dBC, or alongside the dose icon - for an at-a-glance reading without opening the popover.
Pinnable panel
Detach the measurement display as a floating window that stays above your DAW. Pick which sections to keep - dose, SPL, Monitoring Discipline, Leq / Ln, today's summary. Uses Liquid Glass on macOS Tahoe.
Target-level calibration
A pink-noise wizard pins your monitor controller to a specific dBA target. Captured calibrations record the knob-position note, target value, and measured SPL. One record per output device.
Monitoring Discipline
Tracks how consistently you actually monitor at your chosen reference. Live on-target % chip in the menu bar, with a green / yellow / orange ladder and a three-segment under / on / over bar.
Monitoring alerts
Opt-in notifications when your level drifts (rolling 30-min Leq vs session baseline) or sustains a deviation off target. Independent snooze per category.
Lyra integration
After a target-level calibration, hand the position straight to Lyra with a single click. Your calibrated level becomes one keystroke away.
Hearing dose
Accumulates your daily exposure using the NIOSH formula. The Pressure Bloom in your menu bar reflects both live SPL (arc count) and today's dose tier (colour) at a glance.
Leq & Ln stats
Rolling Leq over 1, 10, and 30 minutes plus L10 / L50 / L90 percentiles - describe the character of a session at a finer grain than instantaneous level.
Mic correction
Compensates for your measurement microphone's frequency response so the SPL reflects the room, not the capsule. Measure it with pink noise, or import the manufacturer's curve.
Calibration files
Reads REW-style .cal, .txt, and .frd files, the format miniDSP, Dayton, and most measurement-mic vendors ship. The curve is inverted, limited to ±9 dB, and applied ahead of the weighting filters.
UMIK-1 in one step
Type the serial printed on the mic and Audita fetches that unit's factory calibration. Its sensitivity figure sets absolute SPL directly, so no reference meter is needed, and input-volume changes are compensated live.
Calibration health
Settings opens with three status lines: where the level came from and for which device, whether the mic correction is really active, and when the rig last passed a self-check. Summarised in the popover too.
Rig self-check
One click plays pink noise at your calibrated reference and measures it back, reporting the delta against your tolerance. Verified state is tracked per mic-and-monitor pair.
Calibration profiles
Save a mic's correction, offset, and the file behind it under a name. Select that mic again and Audita offers the profile back, with where and when it was captured. Applying is always your call.
Peak monitoring
C-weighted peak impulse tracking per EU Directive 2003/10/EC. Notifies you when levels cross the 135 / 137 / 140 dBC action values. Per-session and daily counts.
Instantaneous peaks
Tracks A-weighted instantaneous peaks above 115 dBA - the EU Directive 2003/10/EC ceiling for any single moment of exposure. Counts per session.
Session tracking
Auto-detects when you open a DAW and starts a session. 15 DAWs supported out of the box - Luna, Logic, Pro Tools, Ableton, REAPER, and more. Manual start and end also available.
Session history
Per-session dose contribution, average and peak SPL, peak impulse counts. Seven-day bar chart shows weekly EU L_EX,w exposure level at a glance.
Shareable reports
Every session generates a one-page PDF - SPL chart with monitoring-discipline shading, stats grid. Opens from the history menu or session-recap notification.
History window
A dedicated window to explore any date range - cumulative dose, daily average, EU weekly L_EX,w, peak dBA / dBC, and impulse counts. Each stat has its own explanation popover.
Conservative mode
Optional setting that uses max(dBA, dBC) for dose accumulation. Designed for bass-heavy work - sub-mixing, kick tracking, live sound.
Input channel selection
Pick any individual input channel - a talkback mic, a dedicated measurement input, or a specific channel on a multi-channel interface like the Apollo Twin X. Channel names are read from the driver.
Non-invasive
Lives in the menu bar. Measures passively via any CoreAudio input device. Nothing touches your signal chain.
Universal binary
Ships as a universal binary - runs natively on both Apple Silicon and Intel Macs (macOS 14 Sonoma or later).

Pairs with Lyra

AUDITA measurement mic at the mix position calibrate pink noise · 79.4 dBA lyra://reference/2/save ?name=Mix&dBSPL=79.4 LYRA slot 2 · Mix 79 dB SPL Ctrl+F11 recalls the level AUDITA measurement mic at the mix position calibrate pink noise · 79.4 dBA lyra://reference/2/save ?name=Mix&dBSPL=79.4 LYRA slot 2 · Mix 79 dB SPL Ctrl+F11 recalls the level
Audita measures, Lyra remembers. After a calibration, one keystroke puts the monitor back at a level you can cite in dB SPL. Walkthrough in the pairing post; needs Lyra 1.4+.

Standards

Audita measures against the most protective mainstream occupational standards.

NIOSH REL85 dBA reference, 3 dB exchange rate, 80 dBA accumulation threshold - the most protective mainstream occupational noise standard.
IEC 61672-1International standard for sound level meter frequency weighting - A-weighting and C-weighting biquad IIR sections, normalised at 1 kHz.
EU 2003/10/ECEU Directive on occupational noise. Defines the 135 / 137 / 140 dBC peak action levels and the 115 dBA instantaneous ceiling.
ISO 9612Framework for the weekly noise exposure level (L_EX,w) shown in the session history chart, compared against the 85 dBA weekly criterion.

Recent for Audita

All releases →
Released · Audita v1.5.1

Audita 1.5.1

Input devices running at 88.2 kHz or higher measured nothing. Measurement now follows every rate the device offers, 44.1 through 192 kHz.

Read release notes →

new

16 Sep 2026
Released · Audita v1.5

Audita 1.5

New app icon, Liquid Glass on the Welcome and License windows, and a fix for input devices selected explicitly on macOS 27.

Read release notes →

Sep

13 Sep 2026
Released · Audita v1.4

Audita 1.4

Calibration-file import with absolute SPL from a UMIK-1's serial, a calibration health card, a one-click rig self-check, profile recall per microphone, and dose that accumulates from true interval energy.

Read release notes →

Aug

13 Aug 2026