The Evolution of Hearing Aid Channels: A Closer Look

What are Hearing Aid Channels image

In recent years, the field of audiology has witnessed remarkable advancements in hearing aid technology. Gone are the days when the number of channels in a hearing aid was a primary concern. Today, the focus has shifted towards a plethora of advanced features that differentiate premium hearing aids from their economy counterparts. In this article, we will delve into the evolution of hearing aid channels, exploring their significance in the past and shedding light on the current landscape of hearing healthcare.

How Many Channels Do Hearing Aids Have?

ManufacturerPremium Hearing Aid ModelNumber of Channels
PhonakPhonak Audeo Lumity 20 channels
OticonOticon Real 164 channels
Signia (formerly Siemens)Signia Pure Charge&Go X 48 channels
WidexWidex Evoke 15 channels
ReSoundReSound Omnia7 channels
StarkeyStarkey Genesis AI 2424 channels
UnitronUnitron Moxi Move 20 channels
BernafonBernafon Alpha 920 channels

The Channel Myth

Once upon a time, the number of channels in a hearing aid was considered crucial for optimal hearing assistance. It was believed that more channels equated to better sound quality and improved customization. However, this notion is now largely outdated.
Understanding Hearing Aid Channels

In order to fully grasp the evolution of hearing aid channels, it’s important to have a clear understanding of what a hearing aid channel actually is.

A hearing aid channel can be thought of as an individual processing pathway within the device. It is responsible for amplifying specific frequencies or portions of the incoming sound signal. By dividing the audio spectrum into distinct channels, a hearing aid can target different frequency ranges independently, allowing for more precise sound customization.

In the above image, the portion in yellow is the hearing aid channels, you can see the frequency that the channel is responsible for.

Each channel in a hearing aid is equipped with its own amplifier and signal processing capabilities. This enables the device to tailor the amplification settings to the unique needs of the wearer. For example, if an individual has hearing loss primarily in higher frequencies, the hearing aid can focus on amplifying those frequencies while keeping other channels relatively unaffected.

In the past, the number of channels was considered a vital aspect of hearing aid performance. The belief was that a higher number of channels would provide better sound quality and greater customization. However, as technology has advanced, it has become evident that channel count alone does not necessarily dictate the effectiveness of a hearing aid.

Today, hearing aids are designed to strike a balance between the number of channels and the advanced features they offer. While a minimum of 10 channels is generally sufficient for most individuals, it is the combination of these channels with advanced signal processing algorithms, noise reduction capabilities, and adaptive features that truly enhances the overall listening experience.

As we continue to explore the advancements in hearing aid technology, it’s crucial to recognize that channels are just one piece of the puzzle. The focus has shifted towards a holistic approach, encompassing various features and functionalities that work together to provide personalized and tailored sound amplification for individuals with hearing loss.

The Signia Binax 7: A Glimpse into the Past

In 2016, the Signia Binax 7 hearing aid made waves in the audiology community with its impressive 48 channels. Many considered it to be a groundbreaking advancement at the time. However, the reality was that even with such a substantial number of channels, the practicality of adjusting each channel independently was questionable. Furthermore, the average user would hardly notice the difference between 48 channels and a more modest number.

The Shifting Focus: Advanced Features

Today, the question of how many channels are in a hearing aid has taken a backseat in hearing healthcare. Instead, manufacturers and audiologists are channeling their efforts towards developing and utilizing advanced features that enhance the overall hearing experience. While channel count remains a consideration, it is no longer the primary factor determining the quality of a hearing aid.

Beyond Channels: Customization and Adaptability

Rather than fixating on an excessive number of channels, modern hearing aids are designed to adapt to a user’s specific hearing needs. By focusing on factors such as signal processing, noise reduction, and personalized amplification, hearing aids can provide a tailored and comfortable listening experience.

The Role of Channels Today

Although the emphasis on channel count has diminished, it is worth noting that a hearing aid with a minimum of 10 channels is generally considered sufficient to accommodate various degrees of hearing loss. These channels allow for a reasonable degree of sound adjustment and customization, ensuring a satisfactory fit for most users.

Premium vs. Economy: Features That Matter

In the current hearing healthcare landscape, the distinction between premium and economy or even direct to consumer hearing aids lies in the range of advanced features they offer. Premium products excel in areas such as speech enhancement, directional microphones, feedback cancellation, and connectivity options, among others. These features enhance the overall user experience, providing greater convenience and improved sound quality.


The notion that more channels automatically equate to superior hearing aid performance is a relic of the past. A hearing aid with 48 channels was an exciting development in 2016, the audiology field has since evolved. Today, the focus is on advanced features that go beyond channel count, offering customized and adaptable solutions to users with hearing loss. As technology continues to advance, we can expect further innovations that prioritize user satisfaction and revolutionize the way we perceive hearing aids.

Don’t compare hearing aid brands based on the number of channels.

Jonathan Javid Au.D.

Jonathan Javid Au.D., a seasoned audiologist with an extensive background in the field of audiology. With over 11 years of invaluable clinical experience, Jonathan has dedicated his career to helping individuals enhance their hearing and improve their quality of life.

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