Why is your hearing aid whistling?

Exploring the factors contributing to whistling and how to solve it

Book an appointment Visit us at one of our clinics Take our online hearing test

Understanding hearing aid feedback

Hearing aid feedback occurs when amplified sound leaks from the hearing aid's speaker and is picked up again by the microphone, resulting in a whistling or squealing noise. This can be caused by factors such as improper fit, the shape of the ear canal, or a buildup of earwax. Modern hearing aids are equipped with advanced feedback cancellation technology, which effectively reduces or eliminates this issue, ensuring clearer and more comfortable hearing for the wearer.

Feedback vs. whistling in hearing aids

While feedback encompasses a range of unwanted noises resulting from sound leakage and re-amplification in hearing aids, whistling specifically refers to a distinct type of noise within this category. Whistling typically manifests as a high-pitched, often shrill sound, resembling a whistle or squeal. It occurs when feedback loops amplify certain frequencies, leading to oscillations and creating the characteristic whistling noise. However, feedback can manifest in various other forms as well, including buzzing, humming, or static-like sounds. Understanding this difference is essential for troubleshooting and addressing issues with hearing aids effectively.

a woman looking at herself through a mirror

We're here to help.

We take the time to understand your hearing health and the impact it’s having on your life and the people closest to you. With approximately 350 Amplifon clinics we can ensure that we can support you when you need us most. Whether you need a FREE hearing test, or a hearing aid adjustment, our audiologists will provide you with expert, professional advice.

Book a free hearing check Find an Amplifon clinic

Factors leading to whistling in hearing aids

Understanding the diverse factors contributing to hearing aid whistling is essential for those striving to enhance their auditory experience.

Improper fit

Ill-fitting hearing aids may lead to sound leakage, increasing the likelihood of whistling. Factors such as incorrect ear mould size or shape can contribute to poor fit. Regular adjustments and fittings by audiologists are vital for achieving a proper fit and reducing whistling.

Variations in ear canal shape

Variations in ear canal shape can impact the seal and stability of hearing aids, potentially causing whistling. Individuals with narrow or irregularly shaped ear canals may be more susceptible to whistling. Customised ear moulds or specialised fitting techniques can help accommodate unique ear canal shapes and alleviate whistling.

Earwax buildup

Accumulation of earwax can obstruct the sound pathway and disrupt hearing aid function, leading to whistling. Those prone to excessive earwax production or inadequate cleaning routines may experience more frequent whistling. Regular cleaning and maintenance, along with professional earwax removal when necessary, are essential for preventing whistling due to earwax buildup.

Feedback loops

Feedback loops within hearing aid systems can amplify certain frequencies, resulting in whistling. Factors such as improper programming, microphone placement, or inadequate feedback cancellation technology can contribute to feedback-related whistling. Advanced feedback cancellation features in modern hearing aids aim to minimise whistling by effectively managing feedback loops.

Environmental influences

Environmental conditions, such as wind or background noise, can trigger whistling in hearing aids. Airflow induced by wind around the hearing aid microphone can lead to oscillations and whistling. Techniques like wind noise reduction algorithms or directional microphones can help mitigate whistling caused by environmental factors.

Take our online test and check your hearing FREE Online Hearing Test

How can whistling in hearing aids be managed?

To effectively manage whistling in hearing aids, users can implement several solutions. Firstly, troubleshooting common whistling issues can help identify and resolve the problem quickly. This may involve adjusting the volume, ensuring a proper fit, or repositioning the hearing aids. If whistling persists, users can take proactive steps when hearing aids start to whistle, such as checking for earwax buildup and ensuring the devices are clean and properly inserted.
Additionally, accessing resources for support and assistance is essential. This may include consulting audiologists or hearing care professionals for guidance on troubleshooting techniques or adjustments to hearing aid settings. By implementing these solutions and seeking appropriate support when needed, individuals can effectively manage whistling in their hearing aids and maintain optimal auditory performance.