# Extended High-frequency Hearing and Speech Perception

> **NCT05435989** · NA · RECRUITING · sponsor: **Brian Monson** · enrollment: 480 (estimated)

## Conditions studied

- Low-pass Filtering Speech

## Interventions

- **DIAGNOSTIC_TEST:** Reduced extended high-frequency audibility

## Key facts

- **NCT ID:** NCT05435989
- **Lead sponsor:** Brian Monson
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2021-11-09
- **Primary completion:** 2026-06
- **Final completion:** 2026-06
- **Target enrollment:** 480 (ESTIMATED)
- **Last updated:** 2023-05-10

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05435989

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05435989, "Extended High-frequency Hearing and Speech Perception". Retrieved via AI Analytics 2026-06-16 from https://api.ai-analytics.org/clinical/NCT05435989. Licensed CC0.

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