Induction Loop Systems have emerged as pivotal aids – revolutionizing accessibility for individuals with hearing impairments. These Induction Loop Systems transmit sound directly into Hearing Aids and Cochlear Implants that have a built-in component known as a Telecoil. This provides clearer and more distinct audio without the background noise, for individuals with hearing impairments. Think of it like a noise-cancelling earpiece or headphones that we often use to block out unwanted background noise distractions from the world around us so that we can listen and enjoy the clear music or audio that we are listening to.

There are various number of loop designs that are best suited for specific environments and needs and at the same time complying to the IEC 60118-4 Standards, fostering inclusivity across diverse scenarios.

What is the IEC 60118-4 Standard?

This standard specifies requirements for the Field Strength (Intensity of magnetic field) of Induction Loops for hearing aids to provide adequate signal-to-noise ratio without overloading the hearing aid. Alongside Field Strength, it also specifies the minimum frequency response requirements for acceptable intelligibility.

1. Counter Loops

As the name suggests, counter loops are solutions that can be used for reception counters, help points and ticket counters. This type of induction loop is a small rectangular induction loop and there are a few factors that will be taken into consideration for an ideal position for maximum effectiveness;

1. Counter loop should be mounted in vertical position, either on or embedded in a panel with no metal contents.
2. The ideal height from the floor to the top of the loop should be at 750mm for sitting counters and 900mm for standing counters.
3. The loop shall be facing in the direction of the hearing aid and cochlear implant user. This setting is most effective when the user is in a well-defined position relative to the loop.

2. Perimeter Loops

Perimeter Loops are the simplest and most basic loops that completes an induction loop system. These loops are most effective when used in a setting whereby the coverage area loop is no longer than 4 meters in width, have no requirement for privacy or concerns about signal overspill and have little to no metal in the structure of the venue.

Although Perimeter loops are the simplest and most basic of loops, it has its limitations such that the larger the size of the perimeter loop, the higher the variation over the width of the room. Larger perimeter loops will have a much lower signal strength in the middle than the areas nearer to the boundary. Where the presence of metal structures is present, metal losses will adversely reduce the field strength towards the center of the loop.

3. Cancellation Loops

Cancellation loops are compatible with perimeter loops that has a requirement to limit overspilling in one direction. It is basically a smaller loop segment in which has been carefully designed to be of correct size and as a result, it will cancel the overspilling in one direction with the use of the same amplifier as the main loop. The same concept of a perimeter applies as previously mentioned that it is most effective when the loop is not more than 4 meters in width.

In addition, cancellation loops require higher voltage headroom as compared to a basic perimeter loop. Since there will be an area where there will be no coverage, it is important that no hearing aid and cochlear implant users are in the zero-coverage area.

4. Single Array Loops

Single Array Loops in its simplest definition are multiple perimeter loops or also known as segments, formed using a single loop of cable. It is capable in providing better coverage than a single large perimeter loop since there are now more than 1 smaller sized perimeter loops that can provide more precise and quality field strengths that can be picked up by Telecoil-enabled Hearing Aid and Cochlear Implant users.

Single array loops are effective but still have areas where there are “dead” zones as there is a gap where the magnetic field coverage is absent. Hence these zones are strongly recommended for hearing aid and cochlear implant users to stay away from.

5. Multiloops

A Multiloop is a complex loop design that comprises of 2 arrays with multiple segments that complement each other to provide even coverage for large areas like Multi-Purpose Halls, Prayer Halls and Classrooms, just to name a few. Multiloops can be further categorized into Low Loss and Low Spill multiloops. A simplified breakdown of these types of multiloops are as follows;

1. Low Loss Multiloops
   As the name suggests, the purpose of this multiloop design is to ensure that the multiloop is able to provide as much effective coverage as possible by compensating for high metal loss in the venue. When a venue has relatively high metal content, the signal gets bounced back, cancelling the loop signal to a certain degree, affecting the audio that hearing aid and cochlear implant users hear. This results in the audio being muffled and not natural sounding.
   
   With proper designs and laying of Low Loss multiloops, the results will reflect an even field coverage over any room size, be it in the presence of metal or not. Although the overspilling effect is substantially reduced, it is a much better solution compared to a perimeter loop.
   

    

2. Low Spill Multiloops
   Low Spill multiloops are similar to Low Loss multiloops, able to provide an even field coverage but only with more control of the overspilling effect. This loop design is most effective when there is a stage where electrical instruments like an electric guitar or even a dynamic microphone is present as it might induce interference. That is where careful and good loop designing with the help of simulation tools is crucial to keep the overspilling effect to the bare minimum.
   

Conclusion
To summarise, there is no one-size-fits-all loop design that can be used for any venue. There are multiple factors to the purpose of installing an induction loop such as privacy, overspilling, size of coverage area. Designing and installing an induction loop to fit the needs of the venue is bespoke and requires careful considerations without having to overspend on unnecessary systems and add-ons.

Induction Loop Systems (ILS) or Hearing Enhancement Systems (HES) have revolutionised accessibility for individuals with hearing impairments, offering a direct and efficient way to transmit audio signals to hearing aids and cochlear implants. At the heart of these systems lie loop mediums – crucial components that facilitate the transmission of audio signals from the audio source to the telecoil found in hearing aids and cochlear implants. Here, we’ll delve into the array of loop mediums shaping the landscape of induction Loop Systems or Hearing Enhancement Systems:

1. Direct Burial Cable (DBC)

Direct Burial Cable loops are one of the most widely used loop medium for Induction Loop Systems or Hearing Enhancement Systems. It has copper wires – an excellent electrical conductor, making it an ideal material for transmitting audio signals. Direct Burial Cable loops are typically installed in a series of arrays of a room or venue, inducing magnetic field that is picked up by telecoil-enabled Hearing Aids or Cochlear Implants and then converted into audio signals.

The insulation for Direct Burial Cables are able to resist the corrosive alkali effects present in cement and concrete. Hence, these loops can be installed within the screed layer and without the need for additional conduits or protective casings, reducing installation time and labour.

DBCs have a max outer diameter of 5mm, which contributes to space efficiency and eliminates the sight of visible wires or cables. This feature is advantageous in environments where aesthetics and space management are crucial such as theatres, museums, places of worship and hospitals since the Installation of DBCs is dependent on the type of floor finishing and venue.

• Floor finishings: If the final floor finishings are tiles, vinyl or timber wood flooring, then it would be most practical to opt for DBC installation since it will be embedded in the screed or underneath the timber wood panels.
• Venue: Installation of DBC would be most suitable when the venue or area is levelled throughout. It would not be practical for DBCs to be installed for tiered seatings as it would be difficult to secure to the rebars before the screed is poured. Even if the tiered seats are pre-existing, it would be less cost-effective and time-consuming to have to cut grooves or channels to lay the DBCs into and screed over to cover.

2. Flat Copper Tape (FCT)

Flat copper tape loops are another popular choice for loop mediums. Instead of using Direct Burial Cables, flat copper tape is utilized, which offers flexibility and ease of installation.

The Flat Copper Tape is typically adhered to the protective layer of Duct Tape to prevent any damages to the insulation which may result in an electrical short or even an open circuit. Following that, a layer of Blue Text and Hearing Loop Logo on White Printed Warning Tape is applied, which provides an indication to carpet and vinyl fitters to avoid cutting the Flat Copper Tape.

Flat copper tape loops are particularly suitable for retrofitting existing spaces, as they can be discreetly installed beneath carpeting without major modifications. The thin profile of the tape makes it less noticeable and reduces tripping hazards. Although slightly more prone to damage than Direct Burial Cables Loops, proper installation and maintenance and coordination is critical to ensure optimal performance.

3. Pre-Formed Loops

Pre-formed loops consist of loop conductors that come in various shapes and sizes, designed to fit specific applications or venues. These loop mediums are typically made from flexible copper wire and are pre-formed into specific shapes, such as rectangle or square to match the layout an area, usually a counter setting like an information counter or ticketing counter. Pre-formed loops offer convenience and ease of installation. Pre-formed or counter loops are commonly used when a Hearing aid or Cochlear implant user would like to communicate to the staff directly one-on-one. In addition to that, it offers a certain degree of privacy since the loop is directed towards the hearing aid user that is standing within range of the counter loop while those who are not, would not be able to pick up the signal and eavesdrop on sensitive information.

Conclusion:

Understanding loop mediums is a critical component of hearing enhancement systems utilizing magnetic induction technology. Direct Burial Cable, flat copper tapes and pre-formed loops offer various options to cater to different installation requirements and venue layouts. Each type of loop medium has its advantages and considerations, depending on factors such as room size, installation feasibility, portability needs, and specific user requirements. By understanding the characteristics and applications of these loop mediums, designers and installers can select the most suitable option to ensure effective and inclusive communication for individuals with hearing loss.

Contact Us

Looking for Induction Loop Systems (ILS) or Hearing Enhancement Systems (HES) to elevate the level of accessibility in your environment? Contact us today at +65 6817 5100 or send your enquiry here and learn more about how we can help you create inclusive and accessible environment in Singapore.

After the installation of an induction loop, be it a multiloop or a fixed counter loop system, proper termination is required and followed by commissioning of the system with the AV System as a whole before handing over to the end users.

Proper termination of cables from the induction loop system is crucial to ensure that the induction loop system as a whole, is functioning correctly and is performing optimally.

These factors are crucial for proper termination;

1. Ensuring loop medium is correctly routed and secured, minimizing the risk of damages or interference.
2. Making precise connections between loop medium and amplifier which may include soldering or using dedicated connectors to the amplifier.
3. Verifying the integrity of the connections by conducting tests to ensure proper signal continuity of the induction loop system.
4. Proper grounding of induction loop system to prevent unwanted interference.

Commissioning of induction loop systems is the final stage of the installation process, where the system’s functionality and performance are tested.

Tests that will be done during the Commissioning of the induction loop system would include checking of Signal/Field Strength, Frequency Response and uniform coverage of the induction loop system.

1. Background Noise Test – To ensure that the Magnetic background noise generated by other equipment like a generator or mains wiring does not affect the performance of the induction loop system.
   1. Readings should not be higher than -32dB.

2. Signal/Field Strength Test – To determine the system’s output level, ensuring that it complies with the IEC 60118-4 Standards so that hearing aid and cochlear implant users would have a comfortable experience.
   1. For parameter loops and multiloops systems, readings should be between ±3dB.
   2. For counter loops, readings should be ±6dB to comply with the IEC 60118-4 standards.
      1. If it does not meet passing requirements, adjustments on the amplifier have to be made until it achieves passing results.

3. Frequency Response – To assess the system’s ability to reproduce audio frequencies that are clear and audible. This is where Metal Loss Compensation in the amplifier plays a huge role to compensate for the cancellation of loop signal to a certain degree due to Metal Loss.
   1. Results should be showing a Flat Frequency Response reading as much as possible for both the High and Low Frequencies of 100Hz and 5kHz respectively.
   2. Optimal results would be in the range of ±3dB of 1kHz for both frequencies.

4. Signal/Field Strength Test – To re-test the system’s output signal after adjusting the Metal Loss Control to overcome the Metal Loss.
   1. For perimeter loops and multiloop systems, readings should be between ±3dB to comply with IEC 60118-4 standards.
   2. For counter loops systems, readings should be ±6dB to comply with the IEC 60118-4 standards.

5. Live Test – To ensure that the current settings applied on the amplifier is within the comfortable listening range and still within the IEC 60118-4 Standards when an audio source is playing either via Line Input or Microphone.
   1. Readings should be between -6dB and +3dB for counter loop systems and Multiloop systems.

6. Uniform Coverage of induction loop system – To ensure that there is a consistent signal quality, clarity and no “humming noise” throughout the coverage area.

Fine-tuning of the system amplifier would be required to optimize the performance as per end user requirements and also to meet and comply to the IEC 60118-4 Standards.

Once the commissioning process is completed, a Certificate Of Confirmation will be issued as a form of verification that the induction loop system is ready for use.

Counter loops provide a direct communication solution for individuals with hearing impairments who use hearing aids in an establishment. They allow customers to converse with staff members even in noisy environments such as shopping centres, where background noise can be overwhelming. In Singapore, developers can benefit from integrating counter loops into their designs to improve accessibility for hearing aid users.

A counter loop is an induction loop that can communicate with a hearing aid user in a known and well-defined position. Counter loops are effective at locations such as:

• Ticket Counters
• Reception desks
• Information or help points.
• Cashier counter

How does a counter loop work?

1. An audio source usually would be a staff member who will speak into a directional microphone.
2. The microphone captures the voice, converts it into a sound signal, and sends it to an Induction Loop Amplifier to generate a current to pass the signal into the Induction Loop.
3. The Induction Loop, made from copper wire, would be located under the counter, producing a magnetic field.
4. The magnetic field generated by the Induction Loop will be picked up by the Telecoil or T-Coil equipped with the hearing aid and must be switched on by the user. The Telecoil will then convert the signal into a sound directly fed into the ear canal, omitting the background noise and improving the intelligibility of the staff's voice.

Portable Counter Loops vs Fixed Counter Loops

Portable Counter Loops

The portability of moving around an induction loop would be the ideal product for areas with counters. Businesses would prefer the Portable Counter Loop as their go-to product due to its portability and ability to be used immediately.

Portable counter loops are a simple and quick solution because they do not need to be configured or initially set up before use. Staff members must know several variables that affect how well a portable counter loop works.

These factors include:

1. The distance that they would have to be standing away from the device so that the omnidirectional microphone would be able to pick up their voice. Otherwise, the microphone might pick up ambient noise instead, which might cause the hearing aid user not to have an intelligible sound quality.
2. The height of where the portable counter loop is placed so that hearing aid users can receive a comfortable hearing volume level – not too soft or too loud.
3. There is a constant need to recharge the device before usage, and it has an auto shut-off feature after 10 to 60 minutes to prevent the battery life from deteriorating.

Also, since portable counter loops are always present in the line of sight of the retail staff and take up space, there is a much higher chance that the device might be kept or moved elsewhere where it does not obstruct operations, which may result in a lack of return on investment and may even be forgotten by staff that there is a portable counter loop system at all. This may even lead to the hearing aid user being unable to ask for assistance in the first place.

Fixed Counter Loops

The opposite of portable counter loops is fixed counter loops. As its name suggests, a fixed counter loop is a long-term fix that can be added to old or new counters. Despite being installed, fixed counter loops do not need to be adjusted or set up before use; a staff member must talk into the desktop microphone.

The hearing aid user has to be standing in front of the counter and proceed to turn on the T-coil function to be able to hear what the staff member is saying. And since the fixed counter loop is installed under the actual counter itself, it is a discreet and non-discriminatory way that hearing aid users can communicate easily to ask for assistance. Furthermore, since the fixed counter loop is hidden from sight, hearing aid users are not discriminated against.

Since the fixed counter loop driver does not operate on batteries, it is plugged into a DC power source, and users can choose to keep it on standby or use it on demand. Before the room with the fixed counter loop system can be utilized, it must meet the IEC 600118-4 standard. Staff should be properly set up and tested during the initial installation phase before being commissioned to be fit for use.

Conclusion

Overall, a portable counter loop scores a 5/5 on portability. However, it does require constant adjustments to ensure that customers with hearing aids can get an intelligible sound quality, which might not even meet the IEC 600118-4 standard, and that staff must recharge before every use. Since the portable counter loop is within the public's line of sight, it may be discriminatory to those wearing hearing aids.

On the other hand, a fixed counter loop checks all the requirements the portable counter loop lacks. Even though the fixed counter is not portable and only dedicated to a single counter desk, it meets the IEC 600118-4 standard, which hearing aids users will appreciate. Since it is hidden from the eyes of the public, hearing aid users will feel more included and will not feel discriminated against when approaching a counter staff.

Singapore's architects and building system developers can enhance accessibility and improve communication for hearing aid users by integrating fixed counter loops into their designs.

If you want to learn more about counter loops, please send your inquiry. Read about induction loop systems to understand which option suits your project.

Induction loop systems use electromagnetic fields to transmit audio from a microphone or other audio source to a hearing aid or cochlear implant. The hearing aid or implant must have a Telecoil or often referred to as T-coil, a particular type of receiver, to pick up the audio signals. Installation is required during construction to embed the loop underneath the floor finishing or above the ceiling panels, whichever meets the customer's requirements. Therefore coordination is important between different parties to ensure successful installation.

Digital FM solutions use a 2.4 GHz global frequency standard for wireless broadband communication to transmit audio. The audio source is connected to a transmitter, which transmits the audio to a receiver in a portable neckloop that listeners would have to wear to be able to hear. The receiver can be a portable device. Digital FM solutions are portable and do not require installation. However, the building owner has to assign manpower to issue and collect back the receivers and neckloops after every event. Moreover, it is required to sanitise the neck loop and charge the receivers after each use.

Infrared solutions use infrared light to transmit audio. The audio source is connected to a transmitter, which transmits the audio to a receiver, similar to the Digital FM Solution, and in the form of a neck loop that is portable and listeners would have to wear to be able to hear. The receiver is portable; however, the transmitters would require to be installed. Infrared requires a line of sight; if there is a lot of natural light, this might affect the coverage. However, the building owner has to assign manpower to issue and collect back the receivers and neckloops after every event. Infrared solutions are less affected by interference from other sources but require a direct line of sight between the transmitter and receiver.

Overall, Induction loop systems are the most cost-effective and do not require extra manpower to collect  receivers or neckloops in every event. Digital FM solutions need a receiver but do not require installation. Infrared solutions are less affected by interference but require a line of sight.

What should I choose for my space?

The best option for you will depend on the specific requirements, the environment in which the public will use the system, and the budget available. We recommend consulting a professional knowledgeable about assistive listening systems to determine the best option for your situation.

The Hearing Enhancement System by the Listening Lab is the most professional HES distributor and sole distributor of Ampetronic Induction Loop Systems in Singapore. Check the installation process we did at NUS University Cultural Centre (UCC) and OWWA School. To learn more, you may send your questions through our enquiry form, give us a call at +65 6817 5100 or send us an email to hes@listeninglab.sg.

An Induction Loop System, or a Hearing Loop System, is a specialized audio system that uses electromagnetic energy to transmit sound directly to hearing aids and cochlear implants. This system is designed to assist individuals with hearing loss better understanding speech and other sounds in various settings, including public spaces, homes, and workplaces.

An Induction Loop System consists of a loop of wire placed around a room or area and a loop amplifier that interfaces with a microphone or other audio source. The audio signal is then transmitted through the loop wire, which creates a magnetic field that can be picked up by hearing aids and cochlear implants that have a telecoil or "T-switch" setting. This setting allows the hearing aid or implant to receive the magnetic signal and convert it into sound, eliminating the need for additional devices.

Note: Only hearing Aids with a Telecoil will only be able to enjoy the Induction Loop Systems.

Pre-installation questions

Before installation, here are some of the things we will initially ask these questions to help us:

• Floor plan - this is for us to understand the size of our work area, what would be provisioned nearer to the completion of the project, and for us to design the loop per the customer's requirement.
• Type of floor finishing - will help us understand whether factors affect the desired or expected results, such as the high presence of metals, resulting in reduced audio signal clarity.
• Listening Height - whether for sitting or standing, different heights will require different settings on the amplifier.
• Audio Source Location - this will enable us to know where to start and end the loop during the installation phase.
• Bolting points on the floor - allows us to make a more effective design and to divert away from them so that the loop does not get damaged during the installation of furniture and carpentries.

Installation time frame

A typical time frame for an Induction Loop System Installation is as follows:

1. Training Room / Conference Room - 1 day
2. Full Gymnasium coverage - 2 - 3 days
3. Retractable Chairs - 3 days
4. Full Auditorium coverage - 3 to 4 days

In conclusion, an Induction Loop System is a specialized audio system that uses electromagnetic energy to transmit sound directly to hearing aids with telecoil.

This system is designed to assist individuals with hearing loss by providing better and clearer speech and other audio sources in various settings, including public spaces, places of worship, and workplaces. With the clear and direct sound provided by the Induction Loop System, individuals with hearing loss can enjoy a better quality of life and space than regular people.

By choosing Loop Systems, you are guaranteed professionalism and great integration techniques to determine the solution with ongoing support from our dedicated and professional consultancy team.

"Customers remember the experience – not just because you complied." Our ingenious solution delivers sound clarity unparalleled by others. Our vision, quite simply, is to bring intelligible sound to life for the hearing impaired.

For more information, contact our friendly and knowledgeable team at +65 6817 5100 or email hes@listeninglab.sg. You can also send us a request for a quotation.

Induction Loop System is an audio technology that supports enhanced hearing and communication for individuals with a hearing impairment.

Audio Induction Loops, occasionally called Hearing Loops, deliver an assistive listening system for individuals with hearing impairment, specifically those who use a hearing aid.

But how are Induction Loops more efficient than an FM or IR System?

1. One of the main advantages of Induction Loops over FM and IR systems is convenience. Both the user and the venue benefit from the convenience factor. With Induction Loops, users do not need additional equipment or devices as the system directly links with the user's hearing aid or cochlear implant.
2. Another benefit of Induction Loops is that they can be less costly than other systems like RF and IR for larger spaces. Large venues for the Loop system are more cost-effective than using IR and FM for large venues.

Take this example: Each hearing aid user requires one receiver, and the support of 100 hearing aid users will be the receiver cost multiplied by 100, which will be more expensive than the loop. While RF and IR systems cost less because buildings do not need to be modified to install them, Induction Loops can be a more cost-effective solution in the long run.

1. Induction Loops offer a complete range throughout a venue and are less prone to interference than other systems. For example, in FM systems, the signal quality can be affected by obstacles, such as walls or people, which can cause interference.
2. Induction Loop Systems use a magnetic field and equip hearing access the same way wherever installed. They function at airports, ticket windows for trains or buses, and service counters where passing out and getting back an IR or FM receiver is impossible.
3. Induction Loops and IR systems offer greater privacy for users and the venue than FM systems. With FM systems, the signal can travel beyond the intended listening area and potentially be heard by others, compromising privacy.
4. It is worth noting that the efficiency of hearing aid systems can vary based on individual needs and the specific venue or environment in which they are used. Therefore, consulting with a hearing healthcare professional is essential to determine the best assistive listening system for a particular situation.
5. Induction Loop Systems are sanitary. There are no hygienic considerations when one uses their hearing instrument as the receiver.
6. The induction loop system provides an intelligible sound quality, whereby the hearing aid user will be able to experience with their hearing aid that has been tuned to their unique hearing loss profile, allowing them to get the best possible experience out of the induction loop system.

With all the various benefits of hearing loop systems, why do some venues still install IR or FM systems?

• IR and FM systems can still be less expensive than hearing loop systems, especially for smaller venues or venues with a limited budget.
• IR and FM systems may be more compatible with existing audio systems in a venue, making installation and integration easier.
• IR and FM systems are typically more focused than hearing loop systems, making them a better option for venues where privacy is a concern, such as courtrooms or medical facilities.
• IR and FM systems have existed longer than hearing loop systems and may be more readily available in certain regions or countries.

Efficiently, The Listening Lab understands this intimately as we are the only audiology retail chain implementing hearing enhancement systems in buildings. We understand what the users are going through and how a sound system helps the hearing aid user cope much better. We also understand building owners' and designers' requirements and expectations to deliver an integrated, hassle-free solution.

Contact us so we can provide the necessary information for your specified requirements.

When planning renovations or restructuring for a school or university, one should consider installing a Hearing Enhancement System. This system operates in the background and increases the clarity and quality of an input sound source for individuals who use a personal hearing aid or device with a built-in telecoil feature.

How can this be advantageous for school systems?

Institutions like NTU, SMU, Singapore Polytechnic, and The Canadian International School have used loop systems. They can be installed in public spaces and rooms to meet specific needs. Hearing loops are often the most efficient option as they help reduce background noise while allowing students with hearing impairment to be part of the same environment as everyone else. This results in improved clarity while ensuring that speakers wouldn't have to strain their voices and everyone experiences a more nurturing atmosphere - enabling students with hearing impairment to learn with fewer disruptions and can better understand what is being taught.

Hearing Enhancement Systems play a crucial role in the education sector, where many may experience hearing loss. The two main types of Systems are personal hearing aids and FM systems. The latter uses a neckloop that receives FM signals from a transmitter such as a Teacher's Microphone or an audio source from a Line Input. And then into currents that travel through the neckloop—creating a magnetic field which then induces the telecoils in hearing aids, enabling the individual to hear what everyone else hears during lectures given by the presenter.

How does it work?

A hearing loop, an induction loop or T-Loop, is a technology designed to enhance the audio experience for individuals with hearing impairments. It transmits a sound source directly to a hearing aid, eliminating background noise or acoustic distortion.

When selecting a hearing loop solution, it is essential to consider the type of environment the institution will use it. For example, an area coverage solution is required in an ample public space such as an auditorium or theatre when a lecturer interacts with a group of people. A service point solution is necessary if the school uses it at a service point, such as a retail counter or reception desk, where there is a direct line of communication between the hearing aid user and counter staff.

The following information is essential to determine the ideal solution for a specific area:

• The venue's area coverage and dimensions: the size of the room will affect the power needed to drive the hearing loop effectively and provide quality, consistent and clear coverage for hearing aid users.
• The floor construction: metal elements such as beams or even rebar in the floor or ceiling structure can have a minor or significant impact on the signal levels and cause variations in the audio clarity. Hence, to overcome this challenge, the space may need a MultiLoop system to correct this.
• Regarding adjacency or privacy: a perimeter loop tends to spill over into adjacent areas, such as neighbouring classrooms or rooms where one's privacy is desired. This should be taken into consideration when selecting a hearing loop solution.

Check this video: How Hearing Loops Work, to learn more about how they work. The Hearing Enhancement System by the Listening Lab is the appointed sole distributor of Ampertronic products in Singapore and Malaysia for the South East Asia Region.

Convenient places for installation in schools

A hearing enhancement system for the general public makes schools more inclusive for guests and students. Therefore, lecture halls, gymnasiums, and auditoriums are the best places where Hearing Enhancement Systems would install hearing loop systems. Institutions can utilise Hearing Loop solutions during events and assemblies, such that individuals who use hearing assistive devices can enjoy the moment without having to stand close to an audio output like speakers or being left out and constantly look out for assistance.

It is also convenient to install at cashiers or public service counters to improve sound clarity even with heavy background noise. The counter staff will be able to communicate with the hearing aid user via a dedicated microphone which will transmit the signal without disruption from the background noise. This counter loop system is also effective when communication is done between a glass window if there is one.

The Hearing Enhancement System by the Listening Lab designs and builds low-spill multiloops that equip communication privacy within a defined area required by clients. This guarantees that rooms that need to be hearing-aid friendly can also be secure for the specified audience. We offer multiloops which provide communication privacy within selected areas, ensuring that rooms with hearing accessibility remain safe for their end users.

The Hearing Enhancement System by the Listening Lab offers comprehensive solutions for any environment. Schools are constantly battling the challenges of inclusivity for the deaf and hard of hearing, and having a quality and professional solution service is a way to address that. For more installation information and or quotations, you may call us to inquire further.

Why would anyone invested in hearing aids or cochlear implants require anything more than their devices? Don't hearing aids mend a hearing issue like prescription eyeglasses can provide better vision?

It does not.

Today's hearing aids improve hearing in casual settings. For those with hearing loss, the sound becomes vague when loudspeakers are far away, when the context is noisy, or in rooms that resonate sound. A hearing loop magnetically transfers a microphone or TV sound signal to hearing aids and cochlear implants with an affordable "telecoil" receiver. This alters the mechanisms into in-the-ear speakers that produce sound customised for one's hearing loss.

Distance Difference

Beyond 6 feet, people generally use a Bluetooth system in their home or office to drive the audio signal from their TV or sound system straight to their hearing aid. That works in a range of up to 14 feet.

Beyond 14 feet, the space from the primary audio origin to the hearing aid is so far that it merges with the other background noises. That distance also generates reverberation and contortion boosted by the amplifier built into the hearing aid. All of that conducts to higher volume — but significantly reduces clarity and understanding for the person wearing hearing aids.

The solution in more expansive, noisy spaces: shorten the span that sound has to traverse by generating an audio induction loop field that a telecoil receiver can pick up from anywhere in the looped area. Most hearing aids and implants are compatible with this system. Individuals need to be sure they know how to trigger their telecoil. (82% of aids and 100% of implants have a built-in telecoil.)

Therefore, Hearing Loops are certainly recommendable in public spaces.

A user-focused method founded on each area's requirements will specify and provide a loop system with a faultless listening experience.

The Hearing Enhancement System by the Listening Lab is the most professional AV distributor and sole provider of Induction Loops and Assistive Listening Technology Systems in Singapore. Please call +65 6817 5100 or contact us if you have any questions about the possibility of installing a hearing loop in your community.

Hearing loop systems are answers for assistive listening, providing access to high-quality discernible sound for hard-of-hearing individuals. Why are hearing loops critical? The methods are beneficial to those with hearing loss, and the need for them is rapidly growing around the world:

• Assistive listening benefits an extensive and ever-growing section of the community - hearing impairment affects one in seven individuals, a number that is expanding as the population ages. Equipping fair and high-quality assistance to this large group is becoming a high priority for any service provider or public organisation.
• Hearing loop systems offer distinctive advantages to service providers and end users, making them essential facilities in many private and public conditions. Legislation is in force or in development in Singapore to mandate the usage of hearing loop systems and secure the benefits given to the hard of hearing. The adoption of technology is evolving rapidly and is more widespread around the world.
• The hard-of-hearing community is increasingly aware of the resolutions available to aid them, expanding end-user demand for assistive listening solutions.

Why are hearing loops necessary?

According to data, individuals with hearing loss in Singapore are estimated to be around 500,000.

We have been providing comprehensive solutions for practically any assistive hearing application. We desire to make a genuine difference in the quality of life of hearing aid users and are committed to delivering the very best systems for installers, facilities managers, and specifiers.

"Simply increasing the volume does not help – it's all about separating the signal from the noise."

Adopting a "tick box" approach to legislative compliance gives no guarantee of performance, reliability, and, most importantly, end-user experience. The right products are only part of the solution.

By choosing Loop Systems, you are guaranteed a professional and integrated technique to determine the best resolution with ongoing support from our unique and dedicated design and consultancy team.

"Customers remember the experience – not just because you complied."

Our ingenious solution delivers sound clarity unparalleled by others. Our vision, quite simply, is to bring intelligible sound to life for the hearing impaired.

For more information, contact our friendly and knowledgeable team at +65 6817 5100 or email hes@listeninglab.sg. You can also send us a request for a quotation.

What is an infrared (IR) hearing system? IR hearing system is an assistive audio system to communicate with deaf and hard-of-hearing people. It is a popular option for an induction loop system. A standard system consists of an infrared radiator (transmitter), infrared listening receivers, and an audio source.

Receivers are usually available at the front desk of the venue, so it may be advisable for hearing aid users to contact a venue before visiting and to guarantee that staff is well-versed in how Infrared systems operate.

How do they work?

Here’s how an Infrared hearing system works in a specific venue:

1. The infrared system (IR) input can be from a sound system, a microphone, or another audio source. They each create an electrical signal which possesses the audio input.
2. This signal is sent to the modulator, which prepares the audio signal for the succeeding infrared (IR) transmission.
3. The processed electrical signal is sent to the radiator. The radiator light-emitting diodes deliver the (invisible) infrared light and cast it into the room.
4. Wireless receivers recast the infrared light signal into an electrical and audio signal (often to a personal induction loop used by a hearing aid wearer).

There's no limitation to the number of receivers who can utilize the system. Most IR systems are single-channel and operate on a radiator with an integrated modulator.

The most manageable method to consider infrared radiators is to consider them as floodlights of invisible light. There are radiators in various sizes depending on the scope of coverage and the number of channels needed. In most applications, multiple radiators guarantee even light coverage, so the user doesn't experience blind zones.

How can we help?

The Listening Lab is the fastest-growing audiology retail chain in Southeast Asia. Our Hearing Enhancement Systems help the average deaf or hard-of-hearing person use hearing aids to hear much better in a public environment. This is because signal-to-noise ratios increase when using a hearing enhancement system.

See details on our Infrared Solutions here.

The Listening Lab is the only audiology retail chain in the business of implementing hearing enhancement systems in establishments. We understand building owners' and designers' requirements and expectations to deliver an integrated, hassle-free solution. For enquiries and quotations, please send us your area requirement. We are ready to assist you with different alternatives for your establishment.

Frequency modulation (FM), like in radio and Infrared (IF), similar to a TV remote, has been the traditional form of assistive listening and communication for many years. Both systems are inexpensive compared to a loop system, but neither gives a satisfactory experience like a Loop System.

So what makes a loop system unique in terms of assistive listening? Here's something most clients need to understand:

"Some places have told us that they already have a loop system. There is some misconception in many venues. Usually, we were notified that there was already a loop system. However, they were referring to an individual neckloop worn around the neck that functions with t-coils.

These neckloops are connected to the FM or IR system in the room. The sound via these neckloops is often inadequate to static over the radio waves. The loop "wire" is below the hearing aid/t-coil; the result is most often sounds coming and going because there is a "null" when one is over a loop wire. This is because sounds bounce from the neckloop rather than directly to the hearing aid."

The misconception on Hearing Loop is that these installations are identical. They are not.

Understanding hearing loops

The user walks into the venue, turns on the t-coil set on their hearing aid, and appreciates the event, production, or discourse. The sound is sent from the loop directly to the hearing aid with no background noise, ambient noise, reverberation, or static.

Most users mention that they hear the speaker as though it is right in their heads, and the sounds are more audible and crisp. And they would be accurate since the loop transmits the sound straight to the hearing aid.

A hearing loop system does not need a headset or neckloop for the t-coil-equipped hearing aid user. The loop system benefits the user's hearing aid.

About FM or Infrared Systems

FM (radio frequency) and Infrared (IR) have been the conventional forms of assistive listening for a long time. Both are relatively reasonable compared to a loop system. However, neither FM nor Infrared systems provide the user with a quality experience.

When using an FM or Infrared system, the user must take off their hearing aids to wear a headset which most people do not want to do. There are battery issues, sanitary concerns, and static feedback from using them. The user has to take the time and struggle to return the headsets from the organizers.

Both FM and Infrared boost the sound, while hearing loops provide the sounds that the users need and adjust to their liking.

One more thing about neckloops since more hard-of-hearing users are elderly; there might be issues with pacemaker users. If one has an insulin pump, pacemaker, or other medical device, manufacturers advise against using neckloops for fear of interference with the current device. Venues within a hearing loop field do not pose a risk. Only having the magnetic field close to the pacemaker might cause a potential issue.

Conclusion

Now that you understand the different installations, we can proudly propose that hearing loops are better venue options. Hearing loops are the future of assistive listening, and we can also provide the necessary service for your venue or location. Although FM and Infrared technology are viable solutions, we highly recommend hearing loops.

To learn more and get a quote for your venue, send us your information with a floor plan, and we can give you a quotation. You can also find other solutions and learn more about induction loop systems.

We have discussed why Hearing loops or assistive listening technologies are a requirement in new buildings and renovations. These hearing loops help transmit to those with hearing loss by sending sound sources directly and removing the background noise. Further reading: How loop systems work?

What is a Hearing Induction Loop?

A hearing loop (often called an audio induction loop) is a unique sound system used by people with hearing aids. They produce a signal that connects directly to a Telecoil-enabled hearing aid, enabling people with hearing loss to listen to clear, intelligible sound regardless of the background noise or the distance to the sound they want to hear.

Where can induction loops be used?

Hearing loops can benefit those hard of hearing in multiple environments, from large venues such as theatres and conference rooms to teaching areas, meeting spaces, and one-to-one transmissions such as reception desks and ticketing counters. They are the best sensible solution to help hearing aid users in public spaces.

Where can hearing loops be used?

• Work: Meeting and conference facilities, desks, and offices
• Schools:: Lecture halls, classrooms
• Transportation systems: Trains and bus stations, airports, and transport networks, elevators, help points, car park access points
• Vehicles: MRTS and LRTs, Taxis and private cars, minibusses, coaches, maybe boats.
• Venues: Movie Theatres, cinemas and concert halls, stadia and sports venues, places of worship, conference and lecture halls
• Point-of-Service: Counters, intercoms and entry phones, help points, and drive-through restaurants.
• Safety: Public areas, voice alarm systems
• Home: TV rooms, phones, individual car systems

Hearing loop systems are not suitable if:

• There is significant background noise, which will decrease the effectiveness of any assistive listening system.
• There is no sensible way to install the loop cable
• There is no clearly defined, intelligible audio source
• Electrical devices such as electric guitars or bass guitars are used within the area surrounded by the loop.

How do you specify an induction loop system?

Specifying which loop system is needed has traditionally been worked out by the area size. However, area size alone is not the exact condition to base specification. A professional must consider a variety of factors to specify a hearing induction loop system, such as:

• Size of the site where it will be situated to define which type of driver is required.
• Is there magnetic background noise? Electrical equipment and mains wiring can generate interference with hearing aids using the 'T' setting.
• Is there surrounding metal in the infrastructure of the building which could impact the loop signal?
• Ensure the loop signals do not overlap if there is more than one induction loop installed, as this can comprise privacy.
• Users' head positioning, standing, and seating arrangements must be considered when positioning the induction loop aerials.

Using a user-focused method founded on each area's requirements will specify and provide a loop system with a faultless listening experience.

The Hearing Enhancement System by the Listening Lab is the most professional AV distributor and is the sole provider of Induction Loops and Assistive Listening Technology Systems in Singapore. View the installation process or contact us to learn more.

Hearing loss is quite common in Singapore. It affects as many as 360,000 persons, and with the aging population, it is expected to increase. Now, more than ever, there are more hearing aid users, as 1 in 11 Singaporeans have hearing loss.

Attending huge events and conferences is daunting as a hearing aid user because listening to and understanding the speakers can be difficult. The great news is that Singapore's Building and Construction Authority (BCA) implemented the Code on Accessibility for Buildings (2013).

It means that part of the requirements for this code required new buildings and buildings undergoing A&A works (Additions & Alternations) to install with Hearing Enhancement Systems.

The Hearing Enhancement System by the Listening Lab provides solutions for buildings and structures, one of which is the installation of the Hearing Loop.

How does a Loop System work?

A hearing loop (often called an audio induction loop) is a unique sound system used by people with hearing aids. They produce a signal that connects directly to a Telecoil-enabled hearing aid, enabling people with hearing loss to listen to clear, intelligible sound regardless of the background noise or the distance to the sound they want to hear.

Hearing Loops function by creating an alternating magnetic field at audio frequencies, which provides an input signal for a Telecoil-enabled hearing aid, cochlear implant, or handheld receiver.

A common place to encounter an area coverage loop facility is a conference room. As many as one in every six people experience hearing loss. The most common hearing loop system is a perimeter loop, where the cable is laid around the room's perimeter to cover the entire area.

Loop System process in a conference room:

1. The speaker uses a dedicated handheld microphone to capture their voice. The signal is transferred to the amplifier when the sound source is captured.
2. The amplifiers' current delivered to the loop system creates a magnetic field that transmits an audio frequency. International standards stipulate field strength and consistency throughout the listening area.
3. The magnetic field induces a current in the Telecoil, which is then translated into audio by the hearing aid, transferring sounds directly to the ear canal using the hearing aid's speaker.

What if my building is a modern building containing many metals?

Building owners can't always use a perimeter loop around a room that contains metal because the hearing loop's magnetic field absorbs sounds. Such issues can be resolved using modern design tools and loop layouts that address magnetic field degradation and signal spill.

For assistance and advice on hearing loop technology, system design, and educational training, The Hearing Enhancement System by the Listening Lab and its team of trained and certified professionals are always ready to help you understand BCA's requirements and implement them in a timely and proficient manner. Get a quote today or give us a call for more details.