Bug fixes and stability improvements. Improved audio handling. Improved microphone calibration file loading and recovery.

Bug fixes and stability improvements.

Bug fixes and stability improvements.

Fixed: the TOOLS menu could be cut off on smaller screens. It now scrolls so every tool stays reachable.

Bug fixes and app performance/stability improvements.

Bug fixes and app performance/stability improvements.

Korean, and a fix for measuring through an external device. • Korean localization. Terms engineers say in English on the job (RTA, LUFS, dose, RT60, transfer function, sweep) stay as they are; the surrounding UI and settings are translated. Switch language from the bottom of TOOLS. • Fixed: launching with an external device already attached showed the built-in mic as selected while the attached device was doing the measuring — which meant the built-in mic's correction was applied to it. • Channel choices now survive a reconnect. The measurement channel, the transfer function's reference channel and the generator's output channel all return to your last setting. • The transfer function opens full screen, and its measurement and reference channels can be picked independently.

Measurement stability fixes. • Switching audio interfaces now instantly and fully resets the meter — no more level or peak values lingering from the previous interface. • Fixed SPL readings dropping abnormally on a silent input. • Removed flickering on very quiet inputs; with no signal, the readout now stays a steady grey.

Bug hotfix — improved keyboard reliability, and improved external device connection errors.

New in 1.4.4 • Signal generator: added a log sweep (20 Hz → 20 kHz) alongside pink/white noise and sine. • Route the signal generator to a specific output channel of a connected interface — and the mic now stays in measurement mode (AGC off) while playing through an interface, for accurate SPL/RTA. • LUFS calculator keeps your last result until you measure again. • RESET now closes an active log, and switching input device or channel starts a fresh measurement. • Stability & accuracy: more reliable clip/overload detection, transfer-function fixes, recovery from a stuck "no microphone" state, and correct long-window levels at high sample rates.

Stability and accuracy improvements. • Mic calibration now stays applied after you quit and reopen the app. • LUFS file analysis: correct results for mono and multichannel files, and short clips. • Broader calibration-file support (more export formats and regional number formats). • Pen annotations are no longer lost when rotating the device or re-entering Pen; Clear now asks first. • The screen stays awake while you're actively measuring. • Signal generator: no click on start/stop, and it recovers after a call or headphone change. • Feedback finder and statistics (L10/L50/L90) readouts are steadier. • Landscape fixes so every control stays reachable on iPhone. • VoiceOver labels and Reduce Motion support.

This update focuses on stability and measurement accuracy: • The flashlight no longer stays on when the app moves to the background. • The app now recovers automatically after you enable microphone access in Settings. • More robust calibration-file handling and measurement-engine reliability fixes.

• Measurement mode — bypasses automatic gain control for more reliable, repeatable readings. • Built-in mic correction — a per-model response curve so your device reads flatter (model shown in the input list). • Calibration files — broader format support (MiniDSP .txt/CSV, .frd) and clearer errors when a file can't be read. • RTA peak-hold — freeze each band's maximum with a slow decay. • Custom profile — set your own LAeq zone thresholds. • Document pen tool — mark up a loaded PDF or image, then save or share it. • Notes sharing — paste text into a memo and share it to Apple Notes, Files, or Mail. • Thermal protection — eases the analyzer load as the device heats and auto-pauses if it gets critically hot, so readings stay trustworthy. • New app icon, stability and calibration-loading fixes.

• Calculator — BPM, distance/delay, dB, wavelength & room modes, impedance, plus offline LUFS file analysis (WAV / AIFF / CAF / FLAC). • Notes & documents pane — keep a setlist, PDF, image, or scratch memo beside the meter (iPad, and iPhone in landscape). • Flashlight — press-and-hold for brightness, with auto-off. • Files app folders — Calibration and Document folders for easy import and export. • CSV session logging. • Mic calibration now supports the .crv format.

What's new • Feedback finder — when ringing out monitors or PA, spot the resonant/ringing frequencies (with their musical note) and the one to cut. • Signal generator — pink and white noise, sine, and a log sweep, played through the output as an RTA reference. • Transfer function — dual-channel measurement (with an audio interface): system + room magnitude and coherence, with a delay finder. • Spectrograph — smoother, faster scrolling waterfall with an adjustable floor and drag-to-read frequency. • New Tools menu and interface refinements.

• Fixed: Spectrum view AVG and BAND controls now respond reliably on all taps.

• New: Tap the input button to open a picker sheet with a live signal meter — confirm your mic or interface is actually receiving signal before you measure. • New: Profile selector now shows each preset's LAeq zone thresholds at a glance. • macOS: Calibration offset field now accepts keyboard input correctly; double-click the slider knob to reset to default. • Bug fixes and stability improvements.

• Tap any meter to change what it shows — switch Slow ↔ Fast time weighting, and cycle the peak meters through LCpeak, LApeak, and RTA peak frequency. • New RTA peak-frequency readout: see the dominant frequency in real time. • Smoother, higher-resolution real-time spectrum with sharper low-frequency detail. • Faster 60 fps meter display for fluid, responsive readouts. • Added a 1-minute averaging window. • Performance and stability improvements.