Evaluating a Deep Neural Noise-Reduction Algorithm for Hearing Aids

Conditions

• Hearing Loss, Cochlear

Eligibility Criteria

Sex

ALL

Age

18 Years - N/A

Healthy Volunteers

Not accepted

Interventions

• Hearing Aid Noise Reduction - Off — DEVICE
  No neural noise suppression applied. Baseline processing condition.
• Hearing Aid Noise Reduction - Low — DEVICE
  Neural noise suppression using the lower-strength algorithm parameters.
• Hearing Aid Noise Reduction - High — DEVICE
  Neural noise suppression using the higher-strength algorithm parameters.
• Negative SNR — OTHER
  Noise levels higher than speech levels
• Zero signal-to-noise ratio — OTHER
  Equal speech and noise levels
• Positive SNR — OTHER
  Speech levels higher than noise levels

Study Details

This study is designed to understand how different hearing-aid noise-reduction technologies affect a listener's ability to hear speech in noisy environments. Participants will listen to speech at several background-noise levels while trying different processing settings. By comparing performance across these conditions, the study aims to identify which types of noise reduction improve speech intelligibility the most. We expect that some noise-reduction strategies will help listeners understand speech better than others, especially in more difficult listening situations.

Key Dates

Start date

Oct 16, 2025

Status verified

Dec 2025

Primary completion

Apr 30, 2026

Completion

Apr 30, 2026

Study Design

Enrollment

50 participants (estimated)

Allocation

RANDOMIZED

Intervention model

CROSSOVER

Primary purpose

TREATMENT

Arms

• Experimental: Hearing Aid Noise-Reduction Processing
  Participants complete all noise-reduction conditions (Off, Low, High) at all tested signal-to-noise ratios in a within-subject crossover design.
• Experimental: Signal-to-Noise Ratio
  Relative speech and noise levels

Primary Outcome Measure

Immediate Speech Recall [ Time Frame: During a single study visit (approximately 1-2 hours), assessed immediately following presentation of each dual-sentence trial. ]

Locations (1)

Find similar trials in West Lafayette, IN

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