Speech mapping shows the hearing aid’s output in your ear in response to sound. Speech mapping is useful since the hearing aid can be programmed to correct the parts of speech which aren’t clear to the wearer. The hearing device can even be optimized to specific voices heard daily.
A small microphone is placed in your ear with your hearing aid. Your family member or other “well-known voice” reads to you while the microphone measures how your hearing aid is processing the speech heard. The results are displayed on a computer screen revealing the parts of speech which fall within your audible range. From these results, your hearing aid is adjusted to accordingly.