British Standards Institution

Source:: IEC
Committee:: EPL/29 - Electroacoustics
Categories:: Information management | Standardization. General rules | Measurement and Science | Metrology and measurement | Measurement. Acoustics | Electroacoustics

Scope

This document is applicable to Assistive Listening Systems for hearing aid users based on broadcasting streaming audio in the ISM band.

This document covers the properties of the hearing aids as receivers of broadcasted streaming audio transmissions, the properties of the broadcasting streaming audio transmitters as well as methods for verifying the proper performance of the system. Furthe rmore, a method for measuring the coverage of a broadcasting streaming audio transmitters is specified. This document applies to single transmitter systems only.

This document specifies the signal levels for the audio signals to be transmitted for hearing aid purposes. This includes both average and peak input signal levels.

Throughout this standard it is assumed that the hearing aids used conform to all relevant parts of IEC 60118.

Purpose

The need for Assistive Listening Systems for hearing aid users has for decades primarily been served by magnetic loop systems and hearing aids with telecoils.

New opportunities for audio streaming in the ISM band (2,3 GHz to 2,4 GHz) have arisen. The ISM band is free to use all over the world. The most common everyday uses of the ISM bands are for low -power and short-range telecommunications, such as WiFi, Bluet ooth, Zigbee, wireless telephones, RFID, and NFC.

To benefit from these new opportunities and ensure their full potential, it is essential to have a standard that describes relevant measurement methods and sets performance requirements necessary for interoperability between transmitters and receivers.

Furthermore, this standard is relevant for reference purposes for regulators

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

20/09/2023

Proposal end date:

08/11/2023

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

PNW 29-1156 ED1: Electroacoustics ? Hearing aids ? Part 17: Assistive listening system for hearing aid users based on 2,4 GHz audio streaming

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