Hearing loop / audio induction loop systems · Malaysia
PNSS designs and integrates Ampetronic hearing loop systems, also known as audio induction loop, T-loop or AFIL systems, for Malaysian auditoriums, lecture halls, meeting rooms, counters and public communication spaces. The design starts with the listening area, building construction and audio path—not with amplifier wattage alone.
PNSS project experience · Higher education · Johor, Malaysia
PNSS has hands-on Ampetronic project experience at a higher-education facility in Johor, covering both localised reception/service-point loops and a larger low-spill MultiLoop system for presentation and collaboration use. The work combined manufacturer design support, consultant coordination, under-floor loop installation, AV integration, field-strength testing, commissioning and later lifecycle support.
The issued Ampetronic Loopworks design prepared for PNSS used an MLD5 low-spill MultiLoop for a 14.4 m × 6.1 m area with reinforced-concrete construction. Two overlapping arrays, each with six segments, were specified to manage metal loss and control spill.
The project equipment schedule included CLD1 compact loop-driver systems for reception desks, with EM195A desktop microphones and local loop coils for one-to-one communication.
PNSS carried out on-site testing with an Ampetronic FSM field-strength meter. Signed commissioning records document the MLD5 area system against IEC 60118-4 methodology, while the completed CLD1 counter-loop test recorded a final system pass after testing and fine-tuning.
The same customer later engaged PNSS to measure induction-loop signal strength and array performance across teaching spaces. Follow-up work included amplifier relocation, cabling / inter-racking modification and repeat signal readings with usable signal positions marked.
Ampetronic design prepared for PNSS, followed by low-spill MultiLoop and CLD1 service-point implementation, field-strength testing and signed commissioning records.
PNSS returned to check induction-loop signal strength and array readings across several teaching spaces.
Amplifier relocation, cabling / inter-racking work and repeat loop-signal measurements for affected teaching areas.
Hearing-loop accessibility symbol
This is the sign visitors should look for when a room, counter or venue provides a hearing loop for compatible Telecoil (T-coil) hearing devices.
This symbol is commonly used to identify a hearing-loop enabled room, counter or venue. When a visitor sees this sign, it normally means they can switch a compatible hearing aid or implant sound processor to the T / Telecoil / Loop setting to receive clearer audio directly.
What the system does
A hearing loop takes a selected audio source and uses a purpose-built loop driver and conductor to create an audio-frequency magnetic field. A compatible telecoil receives that field and converts it back to sound at the hearing device.
Telecoil awareness · 5W1H
A Telecoil, often called a T-coil, is usually not a separate device that a person wears. It is a small magnetic receiver built into some hearing aids and compatible hearing-implant sound processors. When the user selects the T / Telecoil / Loop programme, it can receive the audio-frequency magnetic signal from a hearing-loop system.
A small receiver inside a compatible hearing device. It picks up the magnetic audio signal created by an induction loop and the hearing device then reproduces that sound using the listener’s own hearing settings.
People using compatible hearing aids or hearing-implant sound processors, particularly when speech is difficult to understand because of distance, background noise, reverberation or a physical barrier.
Lecture theatres, classrooms, auditoriums, meeting rooms, houses of worship, healthcare facilities, transport areas, reception desks, ticket counters and other loop-enabled public communication points.
When the user enters a loop-enabled area and wants to receive the loop signal. Look for the internationally recognised hearing-loop / T symbol. The programme name and activation method vary by hearing-device model.
A loop can deliver the wanted microphone or programme audio more directly to the user’s hearing device, reducing the listening problems caused by distance, room acoustics and competing ambient sound.
The venue audio enters a hearing-loop driver. Current through the loop conductor or array creates a magnetic field. The T-coil receives that field and the user’s own hearing device converts it into audible sound.
Practical user note: not every hearing aid has an enabled T-coil. A hearing-care professional may need to confirm compatibility or activate/configure the Telecoil programme. People without a compatible Telecoil device can use an appropriate portable loop receiver where one is provided.
Access without a Telecoil
A hearing loop is not limited to people whose own hearing aid or implant sound processor contains an enabled Telecoil. A portable induction-loop receiver can receive the same magnetic loop signal and present the programme through standard headphones, giving a venue another way to support visitors who do not have a compatible T-coil device.
A venue can keep portable receivers available for visitors who need listening assistance but do not use a Telecoil-equipped hearing aid or compatible implant sound processor.
A portable receiver lets an operator listen to the loop programme directly. This is useful for routine checks before an event, lecture or service period.
Ampetronic describes the ILR3+ as a receiver intended to make regular checks easier, including confirming that the loop is operating and that field strength is at an appropriate level for users.
Ampetronic portable receivers
ILR3: a portable audio hearing-loop receiver that allows a user to listen to an audio-frequency induction-loop system using a standard pair of stereo headphones.
ILR3+: combines listening with a simpler routine system-checking function, helping venue personnel confirm that the loop is operating and that field strength is at a useful level.
Accessibility planning: providing a hearing loop and clearly identifying how visitors can obtain a portable receiver can make the system more useful to people who do not have an enabled T-coil. Receiver quantity, hygiene arrangements, headphones and staff operating procedures should be planned according to the venue.
Applications
Localised loops support clearer one-to-one communication at defined user positions, including counters, glazed service windows and intercom points.
Explore counter loops →Perimeter or array layouts can cover a defined seating or listening area and integrate with room microphones, DSP and presentation audio.
Explore loop drivers →Large or metal-rich spaces may require MultiLoop / phased-array design to achieve coverage while controlling loss and overspill.
Read the design guide →Hearing enhancement can support inclusive communication at service desks, waiting areas, meeting spaces and public-facing facilities.
Lecture, teaching and assembly spaces benefit when the accessibility audio path is designed together with the main PA and presentation system.
Speech and programme audio can be delivered directly to compatible hearing devices without asking the listener to rely only on room loudspeaker level.
The engineering difference
Good performance depends on the electromagnetic environment and the actual geometry of the listening area. The loop should therefore be treated as an engineered subsystem of the wider professional-audio design.
Electrical wiring, transformers, lighting and other equipment can create interference that affects the listening experience.
Reinforced concrete, raised floors, ceiling grids and other conductive structures can reduce field strength and high-frequency clarity.
Standard loops can radiate beyond the room. Where adjacent systems, privacy or interference matter, spill control becomes a design requirement.
Perimeter, counter, cancellation, loss-control and low-spill arrays each solve different coverage conditions.
The correct audio feed, routing, gain structure and priority behaviour must be coordinated with the PA, DSP or conference system.
Field-strength measurement and documented testing provide evidence that the installed system performs as designed.
Selection logic
| Project condition | Typical design direction | What PNSS checks |
|---|---|---|
| Reception / service counter | Localised counter / overspill loop | User position, counter material, microphone/intercom source and field localisation |
| Simple room with manageable metal loss | Perimeter / boundary loop | Room dimensions, aspect ratio, conductor position and acceptable spill |
| Metal-rich or larger room | Loss-control / MultiLoop array | Site metal-loss test, seating area, available installation plane and driver current |
| Adjacent rooms or confidentiality | Low-spill / phased array | Horizontal and vertical spill, neighbouring loops and listening-area boundaries |
| Retrofit project | Site-dependent | Existing floor/ceiling finishes, cable route, access restrictions and system integration |
Project workflow
Confirm coverage area, room use, user journey, existing audio sources, adjacent spaces and project accessibility requirements.
Review floor and ceiling construction, reinforced concrete, raised floors, electromagnetic background noise and cable-routing constraints.
Select the loop topology, conductor method, driver family, signal interfaces and spill-control approach appropriate to the site.
Coordinate loop conductors, rack equipment, audio feeds, signage, PA/DSP interfaces and access for commissioning.
Measure performance with suitable field-strength tools and correct installation issues before handover.
Provide operating guidance and records, then support signal checks, fault diagnosis, system reconfiguration and maintenance where required.
Ampetronic product families
C Series and related driver families support perimeter and MultiLoop architectures, with networked monitoring available on selected products.
View drivers →Compact hearing-loop solutions for defined one-to-one communication positions such as counters and help points.
View counter solutions →Loop receivers, field-strength measurement and site-test tools support validation, commissioning and maintenance.
View test tools →Malaysia & standards context
Malaysia publishes MS 1184:2014 — Universal design and accessibility in the built environment — Code of practice. Project-specific statutory, consultant and authority requirements should still be confirmed for the actual building and scope. For hearing-loop performance, IEC 60118-4 is the principal international reference used for system commissioning.
Frequently asked questions
A hearing loop, also called an audio induction loop, T-loop or AFIL system, sends audio through a magnetic field so a compatible hearing aid or cochlear implant telecoil can receive the programme directly.
Instead of relying only on room loudspeakers, the loop transfers the selected audio signal directly to the user’s telecoil, reducing the effect of distance, room reverberation and competing background noise.
A hearing aid or cochlear implant needs an enabled telecoil or T setting to receive the loop directly. Portable loop receivers can also be provided for people who do not use a compatible telecoil device.
Typical applications include auditoriums, lecture halls, conference rooms, meeting rooms, houses of worship, reception counters, service points, ticket counters, help points and other public communication areas.
Yes. The loop driver can receive a suitable feed from microphones, a PA system, DSP, mixer, conference system or other programme source. The signal path and gain structure should be designed as part of the complete audio system.
Room aspect ratio, loop layout, required current, metal loss, background magnetic noise, seating pattern and overspill requirements all affect the design. Floor area alone is not enough for reliable equipment selection.
Conductive metal in reinforced concrete, raised floors, ceiling grids and other building structures can weaken and distort the magnetic field, especially at higher frequencies. Site testing and an appropriate loop topology may be required.
Overspill is the magnetic field extending beyond the intended listening area. It can cause interference with nearby loops and may be undesirable for adjacent rooms or confidential spaces.
A perimeter loop can be effective for suitable rooms with manageable metal loss and no strict spill requirement. Low-spill or phased-array designs use multiple loop elements to control coverage, compensate for difficult construction and reduce spill into adjacent areas.
Yes. Compact counter-loop systems can provide localised one-to-one hearing assistance at reception desks, ticket counters, service windows, intercom points and help desks.
Commissioning uses a calibrated field-strength measuring process to verify magnetic background noise, field strength, frequency response and coverage against the project performance target. IEC 60118-4 is the principal international performance standard used for hearing-loop systems.
A complete project can include acoustic and coverage planning, loop-driver and topology selection, equipment supply, PA or AV integration, installation coordination, field-strength testing and commissioning. Final model selection depends on room geometry, metal loss, overspill requirements and current product availability.
Useful inputs include floor plans, room dimensions, floor and ceiling construction, seating layout, adjacent-room information, existing PA or AV equipment, intended audio sources, rack location and any accessibility or consultant requirements.
No. These are different assistive-listening technologies with different receiver requirements, coverage behaviour, privacy characteristics and infrastructure implications. Technology selection should follow the users, room, operational requirements and required coverage rather than assuming one approach suits every space.
PNSS has Malaysian project experience with an Ampetronic MLD5 low-spill MultiLoop system and CLD1 service-point loops, including installation, field-strength testing, commissioning and later diagnostic and remedial support. The customer identity is withheld from the public case reference.
Yes. A service scope can include field-strength and array diagnostics, background-noise checks, fault investigation, cabling or system reconfiguration and post-work verification. The exact approach depends on the installed system and site condition.
A Telecoil, or T-coil, is a small magnetic receiver built into some hearing aids and compatible hearing-implant sound processors. When the T / Telecoil / Loop programme is active, it can receive the magnetic audio signal from a hearing-loop system.
Usually no. The T-coil is normally built into the compatible hearing aid or sound processor. The user selects the appropriate T / Telecoil / Loop programme when entering a loop-enabled listening area.
It is particularly useful when speech becomes difficult because of distance, background noise, room reverberation or a physical barrier, such as in lecture theatres, meeting rooms, auditoriums, houses of worship, reception counters and public-service points.
Advantages include direct access to the intended audio through the user’s own compatible hearing device, no Bluetooth pairing for a Telecoil user and support for multiple users in an area loop. Limitations include Telecoil compatibility, electromagnetic background noise, metal loss, overspill and the need for correct design, signage, testing and commissioning.
Ampetronic states that it has no evidence that normal hearing-loop magnetic fields interfere with pacemakers and recommends a precautionary 150 mm (6 in) separation between loop cable and pacemaker. People with pacemakers, ICDs or other implanted electronic medical devices should still follow their device manufacturer’s instructions and healthcare professional’s advice.
Some cochlear-implant sound processors support Telecoil or room-loop reception. Compatibility and activation depend on the specific sound processor and clinician configuration, so the user should confirm this for their own device.
No. A person with a compatible Telecoil can receive the loop directly through their own hearing device. A person without a compatible T-coil can use an appropriate portable induction-loop receiver with headphones where the venue provides one.
A portable loop receiver is a handheld device that receives the magnetic audio signal from an induction-loop system and converts it to an audio output for headphones. It can provide hearing-loop access without relying on a Telecoil built into the listener’s own hearing device.
A Telecoil is normally built into a compatible hearing aid or implant sound processor. A portable loop receiver is a separate venue-issued device that receives the same loop signal and outputs the programme through headphones.
The ILR3 is an audio hearing-loop receiver for listening through standard stereo headphones. The ILR3+ is intended to make regular system checks easier as well, including confirming that the loop is working and that field strength is at an appropriate level for users.
No. A portable receiver is primarily a listening and operational-checking device. Professional field-strength meters and Loopworks Measure tools are used for quantitative measurement, setup and commissioning against the project performance criteria.
Continue exploring
Keep accessibility, loop architecture, receiver options and commissioning connected to the room or PA system.
Return to the wider audio architecture.
Explore →Product LibraryInduction LoopBrowse the induction-loop category.
Explore →Brand ReferenceAmpetronicBrowse drivers, counter loops, receivers and test equipment.
Explore →GuideHearing Loop DesignReview metal loss, overspill and IEC 60118-4 commissioning.
Explore →InstallationInstallation Services MalaysiaConnect hearing-loop installation with wider AV, display, network and specialist installation requirements.
Explore →Provide the floor plan, room use, existing audio system and construction information so the required survey, coverage assessment and equipment schedule can be defined accurately.
