Features

A tour of the software

One browser workspace, from room dimensions to installation drawings. Everything on this page is in the app today.

Plans to IEC 60118-4 field-strength and frequency-response targets. Installed performance is confirmed by commissioning.

Start simple, go deeper when you need to

Every design can start in Basic mode and switch to Advanced mode at any time. Basic mode asks for the essentials and shows a matching driver and the field spread straight away; Advanced mode opens every setting.

  • Basic mode: loop width and length, listening height, loop plane, loop type, loop wire, feeder cable and length, turns and metal loss.
  • Advanced mode: the full set of layouts, the custom array editor and every electrical detail.
  • Feet or meters, switchable at any time.
  • Your name and company print on the reports.

Loop layouts

Choose the layout that suits the room, from a single perimeter loop to a two-channel phased array.

  • Perimeter loops, with optional cancellation loops.
  • Figure-8 and sectioned loops.
  • Phased arrays: standard, uniformity-optimized and low-spill-optimized.
  • Fixed-seating presets and a custom array editor.
Phased array hearing loops

Field-strength modeling

See field strength in dB re 400 mA/m across the room, where 0 dB is the target, and how much of the listening area falls within ±3 dB of it.

  • A heat map, a cross-section and a 3D view of the same field.
  • At seated (1.2 m) or standing (1.7 m) listening height, or a height you set.
  • The ±3 dB band marked on every view.
  • Listening-area figures leave out the strip just inside the wire, where the field changes sharply.
IEC 60118-4 field strength explained

Frequency response

A loop that is loud enough at 1 kHz can still lose the high frequencies that carry consonants. The software shows whether the design holds up.

  • Resistance, inductance, impedance and drive voltage at 1 kHz, 1.6 kHz and 5 kHz.
  • For the conductor, the number of turns and the loop length you choose.
  • With metal loss included.

Metal-loss planning

Steel in a floor or ceiling absorbs part of the field, most of all at high frequencies. Plan for it before you pick a driver.

  • Estimate loss from the construction type: low, typical or high.
  • See what the loss does to field strength and frequency response.
  • A printable site survey sheet, with a site evaluation checklist and a sketch page, helps you collect what you need on site.
Metal loss in hearing loops

Phased arrays, drawn the way they are installed

Two-channel arrays are drawn as series-wound wire paths, the way the crew lays them, with channel assignments and polarity shown.

  • The Phase A and Phase B layouts on their own sheets, plus the overall system layout.
  • Wire crossings drawn as gaps, so an underpass is not mistaken for a break.

Drivers and wire

Driver suggestions are filtered by the current, voltage and channels the design needs, from a multi-brand catalog.

  • Round wire or flat copper tape, with the adhesive tape that goes with it.
  • Feeder cable guidance, including star-quad cable.
  • Driver headroom: what the design asks of the driver, next to its ratings.
  • Equipment in the catalog is listed for planning only; a listing is not an endorsement or a business relationship.
Sizing a loop driver

Reports and drawings

Hand over a design report, installation drawings with a title block and a materials list as PDF, plus a DXF file for CAD.

What each output contains

Built for everyday use

It runs in the browser, so there is nothing to install.

  • Nine interface languages: English, Deutsch, Español, Français, Svenska, Polski, Norsk, Dansk and Suomi.
  • A built-in knowledge library that explains the method.
  • Work carries on offline on a signed-in device.

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