Outputs

What you hand over

Each design produces a design report, installation drawings and a materials list as PDF, plus a DXF file for CAD. Here is what each one contains, in words.

Design report

A PDF that sets out the design and the modeled result, so the client, the consultant and the crew all read the same numbers.

  • Project, area and designer, with the date it was made.
  • Loop design: width, length and area, ceiling height, loop shape, listening height and the margin left around the audience.
  • The selected driver: brand and model, channels, maximum current and voltage, with ratings per output.
  • Installation and wiring: layout type, loop wire or tape, loop offset, feeder cable and feeder length, and the phase relationship for arrays.
  • Metal loss and where the figure came from.
  • Electrical load for each driver channel: resistance, inductance, impedance and drive voltage.
  • A layout preview, a 3D map of the field and a cross-section, with the lowest and highest field strength and the spread across the listening area.
  • A wiring layout page with the conductor routing.

Installation drawings

Drawings the crew can install from, dimensioned in feet or meters.

  • The overall system layout, and for a phased array, the Phase A and Phase B layouts on their own sheets.
  • Dimensions measured from a marked origin corner.
  • A title block with project, drawing title, drawing number, scale, units, sheet, designer and date.
  • Notes on the sheet, including that written dimensions govern and that field strength is measured after installation.
  • Wire crossings drawn as gaps, so an underpass is not read as a break.
  • Installation guidance for the method you choose, with a schematic for identifying feeder pairs.

Materials list

What to order for the job, with full product descriptions so nothing is ordered by a shortened name.

  • The loop driver, by brand and model.
  • Loop wire or copper tape, with the total length, including turns, cancellation loops and sloped ends.
  • Adhesive tape for copper tape, in the same length.
  • Feeder cable for each channel.
  • Quantities are rounded up, never down, and anything missing from the design is flagged rather than swapped for another product.

DXF for CAD

The loop geometry as a DXF file, so the layout can go onto the building drawings or into a specification package.

  • The loop geometry on named layers, in meters.
  • Written in the long-established DXF R12 format, which CAD programs widely open.

Site survey sheet

A printable sheet to take on the site visit, so the design starts from what is really there.

  • A site evaluation checklist: how the room is used, construction and metal, flooring and surface access, ceiling and below-floor access, and rack, power and audio.
  • A page for sketching the floor plan, the looped areas, the feeder route and the driver location.
  • A log for metal-loss readings.

Commissioning record

A printable record that carries the project details and the plan from the design, with room for the installer to write in the measurements taken on site.

  • The design’s plan drawn into the sketch area.
  • Printed in the interface language you work in, with room for handwritten measurements.

Example drawing sheet

Drawing sheet, Community HallDemo
Illustration of an installation drawing sheet (Demo) A dimensioned perimeter loop for the synthetic Community Hall demo, 30 by 20 feet, with the origin marked at the top-left corner, the feeder run to the driver, notes and a title block. Origin (0,0) 30 ft (9.1 m) 20 ft (6.1 m) Perimeter loop, 1 turn at floor level Driver Feeder: twisted pair NOTES 1. Dimensions in feet from origin (0,0). 2. Written dimensions govern. 3. Measure field strength after installation. PROJECT Community Hall DRAWING TITLE Loop layout SCALE / UNITS NTS / ft SHEET 1 of 1 DESIGNED BY Demo
An illustration of how a drawing sheet is laid out, for the synthetic Community Hall demo. It is not an export from the app.

Outputs describe the plan

Reports and drawings show the loop you designed and the field the model predicts for it. They do not test or approve an installation. Installed performance is confirmed by commissioning with a field-strength meter, and the commissioning record is where those measurements go.

Want to see the outputs for a room like yours? Request access, or write to ask for a walkthrough.

Request access

Accounts are set up one at a time while Hearing Loop Designer is in beta. Tell us your name, your company and the kind of projects you design, and we will be in touch.

Request access