White Mark Room Acoustics vs Dirigo

White Mark Acoustic Toolbox is a professional room-acoustics, measurement and reporting platform for acousticians, studio designers, audio engineers and critical-listening specialists. Plan, model, measure, document and share acoustic projects from one app, whether you are checking an existing room, developing a studio concept, reviewing treatment options or preparing client-facing reports. ROOM DESIGN & PREDICTION • Room mode analysis with modal tables, histograms and Bonello distribution checks • RT60 target planning using industry-standard and custom targets • Per-band absorption planning for octave-band treatment schedules • Room optimiser for comparing dimensions and ranking modal performance • 3D room simulation for speaker/listener placement, early reflections and bass response prediction • LiDAR room scanning and AR visualisation on supported devices for rapid room capture and on-site checks MEASUREMENT & VERIFICATION Use the built-in microphone or a class-compliant audio interface / USB measurement microphone where supported. • SPL Meter with A, C and Z weighting, Fast, Slow, Impulse and Leq modes • RTA with 1/3-octave and 1/1-octave spectrum analysis • Spectrogram with 2D and 3D Metal-accelerated frequency-over-time views • Oscilloscope with real-time waveform display, triggered capture and fundamental frequency detection • THD+N meter for sine-wave distortion analysis • RT60 capture from broadband noise decay • NC/NR analysis with full curve family charting and RC Mark II descriptors • Signal generator with pink noise, white noise, log sweep and polarity test tones • Dosimeter for occupational noise exposure logging against OSHA and NIOSH references • Experimental vibration analysis using the device accelerometer APPLE WATCH COMPANION • Start and stop captures, monitor live SPL and review Noise Criteria telemetry from your wrist while moving around the room. TREATMENT & ABSORBER TOOLS • Porous absorber design using the Miki model • Panel, membrane and Helmholtz absorber tools in Pro • Multi-layer absorber stacks in Pro • Assign calculated absorption to room surfaces • Compare saved absorber designs and export specifications PROJECT WORKFLOW • Create projects, save measurements, add editable notes and organise work by phase. The Project Manager lets you review local projects, load the current project across tools, rename, duplicate, delete and manage project archive workflows. • Project Archives use the .wmarchive format to package project metadata, saved measurements, notes and project-scoped tool state into a self-contained file. Export a project for backup or collaboration. EXPORTS & REPORTING • Generate PDF reports and CSV exports from key tools, including project metadata, charts, measurement summaries and saved notes. TIERS Free: core room analysis, per-band planning and material viewing. Pro: unlimited projects, full simulation suite, absorber tools, optimiser and PDF/CSV exports. Commercial: Pro features plus commercial-use rights and white-label report branding for client deliverables. White Mark is a specialist acoustic design consultancy for recording studios, immersive audio rooms, post-production, broadcast and critical listening environments worldwide. The tools in this app were originally developed to support professional acoustic design workflows and are now available for broader use. Important: White Mark Acoustic Toolbox provides engineering tools, estimates and device-based measurements. It is not a substitute for calibrated, certified measurement instruments where regulatory, compliance, safety or diagnostic decisions are required. Vibration readings are experimental, accelerometer-based and should be verified with appropriate calibrated equipment before use in any formal assessment.

Dirigo is one remote for your home theater, on iPhone, iPad and Apple Watch. It controls current Marantz and Denon AV receivers directly over Wi-Fi, well beyond what the bundled remote can do, and with Home Assistant it works without one. WHAT YOU CAN DO • Power, volume, every input and every surround mode your receiver supports • Browse and play HEOS streaming sources — Qobuz, TIDAL, Amazon Music, TuneIn, and the rest • Manage the queue, see what is playing, skip tracks, view history • Control each zone on multi-zone receivers • Configure room correction, speaker levels, HDMI output, video settings, and the deep menus your physical remote pretends don't exist • Activate Quick Selects you have programmed on the receiver • Home Screen and Lock Screen widgets, and an Apple Watch app • Siri and Shortcuts ("Toggle mute with Dirigo", "Set volume with Dirigo") ACTIVITIES One tap sets the whole room: turn on the receiver and the TV, pick the input, set the volume and the lights. Every step reports what actually happened, and Activities run from Shortcuts too. TELEVISION REMOTES Pair the television or streaming box in the same room and Dirigo becomes its remote too. Apple TV gets a touchpad — swipe to navigate, tap to select — along with transport buttons and the Apple TV's own Control Centre and app switcher. Android TV, Google TV and NVIDIA Shield get a D-pad, Back and Home, and play, pause and skip. Dirigo tells you which app is on screen. Volume routes back to your receiver, and a now-playing card on your home screen shows what is on — title, artist, artwork, and how far through it is. Drag the progress bar to jump to a moment. Pairing is a one-time setup: Dirigo finds the television on your network and you type in the code it puts on screen. CUSTOM REMOTES (HOME ASSISTANT) Build remotes from the devices on your own Home Assistant server. • Add lights, switches, fans, buttons, scenes, scripts and sensor readings, and arrange them your way • Add a D-pad or a transport row and choose what each button drives • A Now Playing remote for a Home Assistant media player: artwork, progress, play and skip, volume • Show an infrared appliance on the Home screen: its inputs, volume and power, with a full remote for everything else • Put Home Assistant lights and scenes on your receiver's Home screen buttons • No Denon or Marantz receiver? Choose "Connect Home Assistant" when you first open Dirigo DEMO MODE No receiver to test against? Tap "Explore Demo Mode" on the Welcome screen to explore the app with a synthetic receiver, Apple TV and Android TV. PRIVACY Dirigo collects nothing. No analytics, no identifiers, no third-party tracking SDKs, no Dirigo account. All receiver, television and Home Assistant control happens on your local Wi-Fi network; Dirigo refuses Home Assistant Cloud and internet addresses. If you connect Home Assistant, its access token is stored in your iPhone's keychain and sent only to your own Home Assistant server. The only public-internet activity is album art: when you browse a HEOS streaming source, or show a Home Assistant media player whose cover is hosted by a music service, iOS loads the picture from that service's own image address, anonymously. Full policy at bit0100bitsoftware.com/dirigo-privacy. REQUIREMENTS A current-generation Denon or Marantz AV receiver with HEOS (Cinema 50, SR-series, AVR-X-series and similar), or a Home Assistant server. iOS 18 or later. Your receiver or Home Assistant server must be on the same Wi-Fi network as your iPhone. Apple TV pairing requires tvOS 18 or later. Android TV pairing works with Android TV and Google TV devices that support the built-in remote pairing service, including NVIDIA Shield. Dirigo is an independent third-party app and is not affiliated with, endorsed by, or sponsored by Sound United, Denon, Marantz, Apple, Google, NVIDIA, or the Open Home Foundation. Home Assistant is a trademark of the Open Home Foundation.