The rule where you play, the correction value and the protocol

The audience rule

Audience — the rule where you play, in Show › Audience rule, summarizes the rule for your country. It starts from your language (German → DIN 15905-5, French → the French décret, Dutch → the covenant, otherwise WHO); pick another any time — the choice is saved with the venue. The level it judges is the one show level of Show › Where am I now.

Each summary names its source and the date it was written. Rules change — the original text and your permit decide. Print audience notice (A4) (also ⋯ › Print… › Audience notice) prints a notice with the expected level and where earplugs are.

Neighbors are a different question — for an open-air site or a club with homes next door, see Room types — what each one adds.

Measuring the level

The level measurements live in the Measure sheet — in the Show mode it opens on the Level monitor and the Correction value K. While the monitor runs, the Show verdict becomes a live meter strip: how many dB under or over the limit you are, the average your rule is judged on and, for DIN, the projection to the end of the block. The status chip in the header shows the live level (tap it for Show › Where am I now), and Measure turns into ■ Stop monitoring.

Microphone and calibration

Setup at the top of the Measure sheet opens the one device setup for every measurement. Pick the Input and set the Calibration offset (dB SPL − dB FS). The default is a guess: let the monitor run next to a real meter, type what that meter shows in Your reference meter shows and press Calibrate to it (last 10 s). The calibration is stored on this device — it belongs to this device and microphone and stays when you switch venues.

A measurement mic from your mic library

Signed in, Measure › Setup offers Measurement mic from your mic library — the mics you keep under My mics in SpectraSense. Manage your mics in SpectraSense opens them there. Signed out, the box is not shown.

Pick a mic — one with a 0° and a 90° curve is listed once per curve. Then:

• The offset. For a miniDSP file (UMIK-1 / UMIK-2), its sensitivity sets the Calibration offset (dB SPL − dB FS): 94 − the file's Sens Factor. The status line shows the sum. This happens once, on the pick — a later Calibrate to it (last 10 s) stays. It holds with the computer's input volume at maximum (and a UMIK-2's gain as in the file); check it with a calibrator if you have one. A mic without a sensitivity RoomSense can use leaves the offset as it is.
• The curve. It corrects the level monitor, the correction value and Channel matching — from the next Start monitoring. A mic changed while the monitor runs applies from its next start.
• The NR and X-curve checks. On Background noise: NR 10 / NR 15 (studio) and in Measure › X-curve (RTA paste) (cinema), a checkbox appears: These readings were taken with … uncorrected — undo its response per band. Tick it only when your meter or analyzer did not apply the file already — otherwise the mic is corrected twice. The result then says it was corrected.
• The labels. Absolute levels near the monitor say With … calibration — still indicative. A protocol taken from the monitor names the mic in its level source.

None — the offset alone switches it off.

Which mic this device uses stays on this device, with a copy of the mic, so the calibration still works offline at the venue. RoomSense only reads your mic library — it never writes to it. A mic deleted from the library is noticed: RoomSense says so and goes back to the offset alone.

The correction value

You rarely measure where the audience is loudest; you measure at FOH. The correction value (Measure › Correction value K) is the difference between the two, found with pink noise through the PA.

1. Play pink noise from this device (into the desk) or play it from the desk.
2. At 1 · Loudest audience place: Measure here (15 s).
3. At 2 · Measuring place (FOH): Measure here (15 s).
4. K1 is the A-weighted difference; K2 the C-weighted (LCeq) difference — the method the 2022 edition of DIN 15905-5 allows; check the standard.

A difference cancels most of a microphone's own error — keep the same device and gain for both. Peaks cannot be measured with a built-in microphone. Log this visit (Visits) keeps K1 and K2 with the venue for next time — see Venues, rooms and visits.

The level monitor

In Measure › Level monitor, Start monitoring logs the A- and C-weighted level once a second and shows:

• Now (LAeq 1 s);
• the value your rule is judged on — the running 30-minute block (DIN), the last 15 or 60 minutes (WHO, NL, FR, CH);
• LAeq since start;
• 5-minute rows with LAeq and LCeq.

The readings also show in Show › Where am I now. Tick Add the correction value to see the estimate at the loudest place. Warnings say when the browser kept its voice processing on, when the input is near full scale, and gaps show where capture stopped (a locked phone). The log is saved on the device while it runs, so a reload does not lose the show. Clear log · New show empties it for the next show; a protocol you already took from it stays.

The show protocol

Show protocol, in Show › Protocol, is a template with the fields DIN 15905-5 (Annex D) and V-NISSG ask for: organizer, who measured, event, show date, sound engineer / DJ, PA and layout, meter and calibrator, calibration result, reference and measuring place, show start and end, the correction values and how they were found.

• Fill from Show Clock takes the event, date, start and end from one of your Show Clock timetables (read-only — Show Clock is never changed).
• Use the monitor's log — or Import a meter log: a CSV / TXT export from your class meter with a time column and an LAeq column (LCeq if present); tab, semicolon or comma, ISO or German dates, decimal commas; a log with times only takes the show date.
• The protocol shows the assessment periods of your rule (DIN: each 30-minute block against 99 dB(A)), the 5-minute rows and any gaps.
• Print protocol (A4) (also ⋯ › Print… › Level protocol) prints it with a signature line and a SHA-256 hash of the record, so a later change to the numbers shows. The sheet names its level source — the RoomSense monitor (indicative) or the imported file.

A template, not a certificate.

Saved protocols stay on this device

A protocol names people, so it is never synced to your account:

• Save on this device keeps it (the newest 30, up to 2 MB together — the oldest go first, and RoomSense says so).
• Saved protocols lists them as date — venue — event; Only this venue narrows the list. Open brings one back, judged under the rule it was saved with; Delete asks first.
• Export JSON (re-importable) or Export CSV — the selected protocol, or all of them when none is selected. Import JSON takes RoomSense and SpectraSense protocol files.
• The protocol form's fields stay on the device too.
• RoomSense and SpectraSense keep their protocols in one store on this device. Both lists show both tools' protocols, tagged (RoomSense) or (SpectraSense), and the limit of 30 / 2 MB counts them together.

Protocols that an older version kept in your account are copied to the device the first time you open RoomSense; a note says how many are still in the account, with Remove from account (asks first).