One of the common complaints from hearing aid users who switch to custom ear molds or domes is that their own voice sounds too loud. This phenomenon, known as the occlusion effect, occurs because the sealed fit of the mold prevents sound from escaping naturally, causing vibrations to resonate inside the ear canal. While this can be frustrating at first, there are ways to address and adapt to this issue.
Why Does This Happen?
Custom ear molds and large domes are designed to improve sound delivery, particularly for those with more significant hearing loss. However, the trade-off is that they can create a “booming” or “echoing” effect when the wearer speaks. This is due to trapped low-frequency sound waves that amplify the individual’s own voice inside their head.
How to Minimize the Occlusion Effect
While some users may naturally adjust over time, others may need targeted adjustments to make their hearing experience more comfortable. Here are some options:
1. Give It Time
Many users find that they adapt to their new hearing aid settings within a few weeks. If the hearing aids are worn consistently, the brain often adjusts to the new sound profile, making the occlusion effect less noticeable.
2. Vent Adjustments
Audiologists can modify the vent size of the custom mold to allow more natural sound to escape. A larger vent can help reduce the occlusion effect, though it may also slightly impact the overall amplification of external sounds.
3. Programming Adjustments
Hearing aids have different frequency settings that can be adjusted to minimize discomfort. Lowering bass frequencies can sometimes help reduce the impact of occlusion without significantly affecting speech clarity. However, this adjustment needs to be done carefully to maintain speech intelligibility.
4. Try a Different Dome Size
A dome that is too large or too tight can create an exaggerated occlusion effect. Switching to a slightly smaller or more open dome may help alleviate the issue while still maintaining the benefits of amplification.
5. Use the Hearing Aid App
Many modern hearing aids come with smartphone apps that allow users to fine-tune settings. Some users report that adjusting settings through the app over time has helped them gradually get used to the new sound.
6. Behavioral Adjustments
If the hearing aid wearer is speaking louder than necessary, it may be due to habit rather than an actual increase in voice volume. Encouraging them to consciously lower their voice can sometimes help them adjust more quickly.
7. Schedule a Follow-Up with the Audiologist
If the occlusion effect remains bothersome, it’s essential to work closely with an audiologist. Taking notes about specific concerns—such as situations where the voice seems too loud—can help the audiologist make precise adjustments.
Final Thoughts
Experiencing a loud or boomy voice after switching to a custom mold is a common issue, but it is one that can often be resolved with time, adjustments, or both. The key is patience—both with the hearing aids and with the natural process of auditory rehabilitation. Working closely with an audiologist ensures the best possible outcome, allowing users to enjoy improved hearing while minimizing discomfort.