(And When It’s a Sign Something Isn’t Right)
If your hearing aids are whistling, you’re not alone.
It’s one of the most common frustrations we hear from clients. And it can be embarrassing, especially in quiet environments.
But here’s the important part.
Whistling is not something you should just live with.
In most cases, it’s a sign that something needs to be adjusted.
What causes hearing aids to whistle?
That high-pitched sound is called feedback.
It happens when sound escapes from your hearing aid and loops back into the microphone, similar to when a microphone gets too close to a speaker.
In real life, this can happen for a few reasons:
- A loose or improper fit
- Wax buildup in the ear or device
- Worn or damaged domes or tubing
- Volume set too high
- Changes in your ear shape over time
Sometimes it’s a quick fix. But not always.
Here’s what most people don’t realize
Modern hearing aids are designed to prevent this.
Today’s technology uses real-time digital processing to detect feedback before it becomes audible and cancel it instantly.
So if your hearing aids are consistently whistling, it usually means:
Something isn’t working the way it should.
When it’s not just a quick fix
If the whistling keeps happening, the issue is often deeper than just cleaning or adjusting the volume.
We commonly see:
- Hearing aids that were never properly fitted
- Programming that wasn’t fully customized
- The wrong style of device for the ear
- Changes in hearing that haven’t been updated
This is especially common when hearing aids are fit quickly or without ongoing follow-up care.
Do newer hearing aids whistle less?
Yes, significantly less.
But the difference isn’t just about “new vs old,” it’s about the level of technology and how well the devices are set up.
Older or basic devices
- Limited feedback control
- More prone to whistling
- Require more manual adjustments
Modern premium devices
- Advanced feedback cancellation systems
- Continuous automatic adjustments
- Better performance in real-world environments
We work with leading manufacturers like Phonak, Oticon, Signia, and Starkey, and when properly fitted, these devices should not be constantly whistling.
Why some hearing aids whistle more than others
It’s not just the device. It’s the combination of:
- Fit
- Programming
- Maintenance
- Follow-up care
This is where we often see the biggest difference between clinics.
Hearing aids are not “set and forget.” They need ongoing care to perform properly.
What you can try at home
Before booking an appointment, there are a few simple things you can check:
- Wipe down your hearing aids and charger contacts with a dry cloth
- Check for wax buildup and clean the devices
- Make sure the hearing aids are seated properly in your ears
- Try lowering the volume slightly
If the issue resolves, great. If not, it’s time to have them looked at.
When should you have them checked?
You should have your hearing aids assessed if:
- The whistling is constant or getting worse
- It started suddenly
- The sound quality has changed
- They feel loose or uncomfortable
In many cases, this doesn’t mean you need new hearing aids.
It just means they need proper adjustment.
Where Hear at Home can help
We see this issue often, especially with clients living at home or in retirement and long-term care settings.
Common causes we address include:
- Wax buildup
- Lack of routine maintenance
- Poor initial fittings
- Devices that haven’t been adjusted over time
Our approach focuses on hearing care, not just the devices.
- Comprehensive 75-minute assessments
- Real-world adjustments in clinic or at home
- Ongoing support for both clients and families
👉 Learn more about our comprehensive hearing assessments:
https://hearathome.ca/hearing-tests/
👉 Learn more about our mobile hearing care services:
https://hearathome.ca/hearing-services/advanced-hearing-healthcare/
