Pros and cons of using virtual reality in clinical research for hearing device evaluation and fitting

In recent studies, virtual reality (VR) was explored as a tool for the fitting and evaluation of hearing devices. The first study evaluated a novel VR-based method for fine-tuning hearing aids and cochlear implants. This approach allowed patients to trial various device settings within realistic VR environments under audiologist supervision. By tailoring settings to individual preferences in everyday scenarios, the need for repeated adjustments during follow-up appointments was reduced, enhancing efficiency and personalization. The second study investigated the effectiveness of an automatic scene classifier in children with cochlear implants. The classifier activated a directional microphone mode in specific environments to improve the signal-to-noise ratio when speech originated from the front. However, this mode may hinder children's ability to understand speech if they cannot orient toward the speaker. To study this, a novel listening test was developed in a VR classroom. The test assessed speech intelligibility by requiring repetition of digits presented from the front and evaluated spatial awareness by distinguishing between animal names from different directions. This presentation will critically examine the advantages and limitations of employing VR in clinical research, drawing insights from these two projects to highlight its potential in audiological applications.