Improving Communication In Noise When Wearing Hearing Protection
佩戴听力保护装置时改善噪音中的沟通
基本信息
- 批准号:9791120
- 负责人:
- 金额:$ 21.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-09-30 至 2020-09-29
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Abstract
Studies have repeatedly documented that many workers exposed to noise are unwilling to wear
hearing protection because of fear of failing to understand speech or hear warning sounds. During
the last decade, specialized hearing protectors (HPDs) have been developed to address issues
related to overprotection from noise and communication. Most employ electronically-modulated
sound transmission through the HPD and for this purpose include a microphone outside the device,
processing electronics, and a miniature earphone loudspeaker located in or close to the ear (i.e.,
under the HPD), to transmit sounds from the environment to the user. In many situations requiring
the use of HPDs, speech or warning sounds (e.g., back-up alarm, fire alarm), will not be sufficiently
loud to support face-to-face conversation or alarm detection. The methods proposed here are
intended to improve communication in these circumstances.
A recent study has reported a method for reducing noise when attempting to communicate face-
to-face in a noisy environment (Lezzoum et al., 2016). It involved first dividing the frequency
spectrum of the sounds (i.e., speech + noise) into narrow bands of frequencies ("sub-bands"). The
instantaneous magnitudes of the intensity modulations in each sub-band were then used to adjust the
instantaneous gain applied to the signal. In preliminary work for this proposal, we have extended this
approach to improve the intelligibility of speech, and the audibility of warning sounds, in noise at the
adverse signal-to-noise ratios (SNRs) occurring in occupational environments. We therefore propose
to undertake a rigorous study to find and optimize the most suitable modulation-based method for
improving speech understanding during face-to-face conversation and alarm perception using sounds
recorded in industry, machinery rooms and on construction sites. The speech, alarms and
occupational noises will be processed by computer off-line. The sounds will subsequently be
presented at different SNRs to subjects in psychoacoustic tests to compare the performance when
using processed and unprocessed sounds. Confirmation of a successful method would enable the
development of improved electronic HPDs to address the most common complaints of users of
hearing protection. With approximately 4.5 million workers in the U.S. unwilling to use HPDs at
present, there is reason to expect substantial benefits to public and occupational health from the
proposed research for all of NIOSH's Sector Programs in which hearing loss may occur (Agriculture,
Forestry, Construction, Manufacturing, Mining, Oil and Gas Extraction, and Transportation). As
proposed, the project is focused on NIOSH'S r2P initiative, and falls within the Hearing Loss
Prevention, Personal Protective Technology, and Prevention through Design Cross-Sector Programs.
摘要
研究一再证明,许多暴露在噪音中的工人不愿穿
听力保护,因为害怕听不懂语音或听不到警告声音。在.期间
在过去的十年里,专门的听力保护器(HPD)已经被开发出来,以解决问题
与对噪音和通信的过度保护有关。大多数公司使用电子调制
通过HPD的声音传输并且为此包括设备外部的麦克风,
处理电子设备,以及位于耳朵内或靠近耳朵的微型耳机扬声器(即,
在HPD下),将来自环境的声音传输给用户。在许多情况下需要
使用HPD、语音或警告声音(例如,后备警报、火警)将是不够的
声音大,支持面对面对话或警报检测。这里提出的方法是
旨在改善在这些情况下的沟通。
最近的一项研究报告了一种在试图进行面对面交流时降低噪音的方法
在嘈杂的环境中面对面(Lezzoum等人,2016)。它首先涉及到划分频率
将声音(即语音+噪声)的频谱分解为窄频带(“子带”)。这个
然后使用每个子带中的强度调制的瞬时幅度来调整
应用于信号的瞬时增益。在这项提案的前期工作中,我们延长了这一期限
在噪声中提高语音清晰度和警报声可听度的方法
职业环境中出现的不良信噪比(SNR)。因此,我们建议
进行严谨的研究,以寻找和优化最适合的基于调制的方法
提高面对面交谈中的语音理解能力和声音警报感知能力
记录在工业、机房和建筑工地上。演讲、闹钟和
职业性噪声将由计算机脱机处理。这些声音随后将会是
在心理声学测试中以不同的SNR呈现给受试者,以比较当
使用处理过的和未处理过的声音。对成功方法的确认将使
开发改进的电子HPD,以解决用户最常见的投诉
听力保护。在美国,大约有450万名工人不愿在
目前,有理由预计公众和职业健康将从
NIOSH所有可能发生听力损失的部门计划的拟议研究(农业,
林业、建筑业、制造业、采矿业、油气开采业和运输业)。AS
提议,该项目重点关注NIOSH的R2P倡议,属于听力损失
预防,个人防护技术,通过设计跨部门方案进行预防。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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ANTHONY BRAMMER其他文献
ANTHONY BRAMMER的其他文献
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{{ truncateString('ANTHONY BRAMMER', 18)}}的其他基金
Can noise-induced TTS cause persistent impairment of speech understanding?
噪声引起的 TTS 会导致语音理解持续受损吗?
- 批准号:
8737269 - 财政年份:2013
- 资助金额:
$ 21.96万 - 项目类别:
Active Hearing Protectors and Audibility of Critical Communications
主动听力保护器和关键通信的可听度
- 批准号:
7644352 - 财政年份:2006
- 资助金额:
$ 21.96万 - 项目类别:
Active Hearing Protectors and Audibility of Critical Communications
主动听力保护器和关键通信的可听度
- 批准号:
7148540 - 财政年份:2006
- 资助金额:
$ 21.96万 - 项目类别:
Active Hearing Protectors and Audibility of Critical Communications
主动听力保护器和关键通信的可听度
- 批准号:
7472348 - 财政年份:2006
- 资助金额:
$ 21.96万 - 项目类别:
Active Hearing Protectors and Audibility of Critical Communications
主动听力保护器和关键通信的可听度
- 批准号:
7282507 - 财政年份:2006
- 资助金额:
$ 21.96万 - 项目类别:
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