Feedback and Whistling Cancellation

No more whistling- The hearing devices can detect and prevent annoying whistling sounds before it even happens.

The annoying whistle sound past hearing aid users experienced is caused by an amplified (loud) sound that leaves your ear and finds its way back to the microphone on the hearing device. This scenario increases the likelihood of the sound being re-amplified by the hearing device, which results in the annoying whistling sound. 

How This Is Reduced

People felt like they had paid thousands of dollars for technology that would whistle. When an advanced technological hearing device is functioning to its full capabilities and is set correctly, the hearing device user should never experience feedback or whistling no matter the environment they are in.

 

As technology has advanced, research and developers have been able to construct hearing devices that have whistling, and feedback cancellation features built into the technology of the hearing device. Feedback and whistling reduction algorithms have been developed inside of the hearing aid. Whistling and feedback cancellation technology encompass two main parts; one of which is the feedback path stimulator. The feedback path stimulator’s purpose is to continuously monitor the part of the signal playback by the receiver that returns to the hearing device microphones.  The second main part of the whistling and feedback cancellation technology is a dynamic cancellation optimizer (DCO). The DCO analyses the incoming signal. If the signal is found by the algorithm to be audible feedback whistling, the earing device will reduce sound at the affected frequency to provide a stable sound without feedback or whistling

All these amazing whistling and feedback cancelation strategies are built into the hearing device for the user’s benefit.