Audiometry Systems


Approximately 1.3 million active duty troops are regularly tested for hearing loss. FTL’s SonoLoop technology allows medical providers to easily and inexpensively provide this testing in mixed-use clinical settings with repeatable results.

SonoLoop has the ability to accommodate single and multisource sound localization including front-back confusions, separation and perception of multi-talker speech, and spatial hearing from masking in noise. The system can be field-calibrated for quantitative results in small spaces, and applies emerging speaker materials, audio chipsets, and room-correction algorithms to ensure repeatability in audiology tests.

SonoLoop’s computer-controlled 360-degree surround speaker system accurately reproduces any 8-channel USB audio input. It balances ear proximity and soundfield spatial variability, thereby eliminating room-acoustics effects and reducing the total required at-speaker Sound Pressure Level (SPL, analogous to audio amplitude or volume), while maintaining quantitative and repeatable at-ear sound delivery. The system is designed to be portable and storable, enabling temporary conversion of mixed-use clinical spaces for DOEHRS-HC-type testing. The system also collects patient movement metadata and controls for patient head motion, allowing more accurate test-to-test and site-to-site trending of audiology data.

A sonoloop render of the machine itself
A render of a sonoloop occurring for hearing
A render showing how Sonoloop works

For more information on how we can find the solution for you, get in touch today.