Live Speech Mapping with Trumpet: Towards Improved Hearing Aid Fitting Practices

In recent years, hearing aid audiology has witnessed a technological evolution, with devices becoming increasingly sophisticated from a computational standpoint. However, verification and validation protocols for fitting are still, in many clinical settings, incomplete or primarily based on theoretical estimates and subjective feedback.

This document summarizes the rationale, methodology, and results of an observational data analysis aimed at illustrating the utility and relevance of Live Speech Mapping (LSM) as a key technique in the hearing aid fitting verification process, as it allows precise delineation of the patient’s areas of sensory deprivation and adjustment of hearing aid output in the free field.

In this context, Trumpet is introduced: a device integrating Real-Ear Measurements (REM), Live Speech module to perform Live Speech Mapping (LSM), and the Oldenburg Matrix Sentence Test^® (MST), designed to bridge the gap between prescriptive programming and the patient’s real auditory experience.