Hearing Augmentation Receiver Calculator

Calculate the minimum number of receivers required for a receiver-based hearing augmentation system using the receiver ratios specified under NCC D4D8 Hearing augmentation.

Enter the number of people accommodated by the room or space below to calculate the minimum receiver requirement.

Important: NCC adoption and requirements may vary between Australian States and Territories. Always confirm the applicable NCC edition, jurisdictional requirements and current D4D8 provisions before relying on the result.

Understanding Your Result

The calculator provides the minimum number of receivers indicated by the receiver requirements in NCC D4D8, based on the number of people accommodated within the room or space.

For smaller spaces, a minimum of two receivers applies. As the capacity of the space increases, the required number of receivers increases in accordance with the applicable NCC calculation.

Check the Requirements for Your Project

The calculated result should be used as a guide only. Hearing augmentation requirements can depend on the type of building or space, the hearing augmentation technology being used, the applicable edition of the National Construction Code (NCC), and any State or Territory variations or transitional arrangements.

Before using the result for design, documentation, certification or compliance purposes, always confirm the requirements against the latest applicable NCC D4D8 Hearing augmentation provisions.

Need Help With Hearing Augmentation?

Hear Room provides independent advice on hearing augmentation system selection, design, specification, commissioning and verification.

If you are planning a hearing augmentation system for a school, meeting room, theatre, council facility, healthcare environment or other public space, contact Hear Room to discuss your project.

Important Disclaimer

This calculator is provided by Hear Room as a general information and guidance tool only.

While reasonable care has been taken in developing the calculator, Hear Room does not accept responsibility or liability for determining the correct number of receivers required for any particular building, room, space or project.

Users are responsible for independently checking and confirming the applicable hearing augmentation requirements, including the required number of receivers, against the current National Construction Code (NCC), including D4D8 Hearing augmentation, and any applicable State or Territory variations, amendments or transitional provisions.

Requirements may change over time and the applicable edition of the NCC may vary depending on the jurisdiction, approval date and circumstances of the project.

Before relying on the calculated result for design, certification or compliance purposes, users should verify the requirements against the latest applicable NCC provisions and, where necessary, obtain advice from an appropriately qualified building certifier, access consultant or other relevant professional.

The calculator result should not be relied upon as evidence of NCC compliance.