Application of Ideal Binary Masking to Disordered Speech
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 435
- 试验地点
- 1
- 主要终点
- Percent Correct Speech Intelligibility
研究概览
简要总结
Dysarthria and hearing loss are communication disorders that can substantially reduce intelligibility of speech and the addition of background noise adds a further challenge. This proposal utilizes an established signal processing technique, currently exploited for improved understanding of speech in noise for listeners with hearing loss, to investigate its potential application to overcome speech-in-noise difficulties for listeners understanding dysarthric speech. Successful completion of this project will demonstrate proof-of-concept for the application of this signal processing technique to dysarthric speech in noise, and inform the development of an R01 proposal to perform a large-scale evaluation of the technology, and clinically meaningful implications, in a broad range of disordered speech types and severities.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 90 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •INCLUSION CRITERIA for All Participants
- •Native speakers of American English
- •No history of speech or language impairment
- •No significant prior contact with persons having neurogenic speech disorders
- •INCLUSION CRITERIA for Participants with Normal Hearing
- •18 to 70 years of age
- •Auditory thresholds of 20 dB HL or better bilaterally at octave frequencies from 250-8000 Hz (if under 55 years of age)
- •Auditory thresholds of 25 dB HL or better bilaterally at octave frequencies from 250-4000 Hz (if over 55 years of age)
- •INCLUSION CRITERIA for Participants with Sensorineural Hearing Loss
- •18 to 90 years of age
排除标准
- •EXCLUSION CRITERIA for All Participants
- •Mild or profound hearing loss
- •Conductive or mixed hearing loss
- •Asymmetric hearing loss
- •Obvious concomitant cognitive or mental impairment
- •Unable to achieve upward of 20% words correct
研究组 & 干预措施
Normal Hearing
Listeners with normal hearing
干预措施: Ideal binary mask (Behavioral)
Hearing Impaired
Listeners with hearing loss
干预措施: Ideal binary mask (Behavioral)
结局指标
主要结局
Percent Correct Speech Intelligibility
时间窗: One hour
Percent of keywords correctly identified by the participant for the processed speech stimuli, listeners were presented with phrases containing several words and they reported back what they heard. The number of words corrected reported by each listener was counted and converted to a 'percent correct' score.
次要结局
未报告次要终点
研究者
Sarah Leopold
Primary Investigator
Utah State University