Audita, SPL meter and hearing dose - a four-hour session from 10:00 to 14:00 drawn as a radial dial of A-weighted readings, 73 percent on target at 79 plus or minus 3 dBA (K-14), with the two loud passes above 80 dBA lit where the NIOSH dose accrues and today's dose at 29 percent (safe) in the centre; automation through Shortcuts, Spotlight, widgets, a Focus filter and audita:// URLs

Audita menu bar window - Safe dose tier (green)

Audita menu bar window - Caution dose tier (yellow)

Audita menu bar window - 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 History window - dose per day with the EU weekly level, the on-target share, the loudest moments, the day chart, and one line per session

Audita's monitor level wizard inside its card - the calibration noise playing, the live level against the target band, Capture position

Audita's Send to Lyra sheet - write a calibration straight into one of Lyra's three reference slots

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.

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 menu bar window.

Pinned panel

One strip that stays above your DAW: the Bloom, the level, the verdict in words, today's dose. A click expands it in place to the reference, Leq / Ln and the session's readings. 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. The share of the session on target heads the menu bar window, green from 75% and yellow from 50%, with the band, the live deviation and an 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 page

One verdict line and four pills: where the mic correction came from, where the level came from and for which device, the captured monitor level, and when the rig last passed a self-check. Four cards under them with the wizards inside. A pill that needs attention becomes a banner in the menu bar window, with a Fix button.

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 log

One line per session: the DAW, the time, a sparkline shaded by zone, the share of the day's dose, the on-target chip, and a peak chip when a limit was passed. Averages, peaks, Leq and Ln are in the session's report.

Shareable reports

Every session generates a one-page PDF - SPL chart with monitoring-discipline shading, stats grid. Opens from a session row, from Share Last Session in the menu bar window, or from the session-recap notification.

History window

Any date range answered three ways: dose per day with the EU weekly L_EX,w level, the on-target share with the under and over shares, and the loudest moments against the EU limits. A day chart and the session log under them.

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 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 History window, compared against the 80 and 85 dBA action values.

Recent for Audita

All releases →

Released · Audita v1.6.1

Audita 1.6.1

Send to Lyra and the self-check's Lyra recall work on second-generation Universal Audio Volt interfaces, with Lyra 1.9.

Read release notes →

new

20 Oct 2026

Released · Audita v1.6

Audita 1.6

The menu bar window answers two questions, today's dose and the reference, with the level once and Details folded. The pinned panel is one strip that expands in place, the History window opens on three answers and one line per session, and Settings is a sidebar window with a Calibration page: one verdict line, four pills, four cards.

Read release notes →

new

17 Oct 2026

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 →

Sep

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

User Guide

API reference

Release notes

FAQ

Audita release notes + hearing-health notes.