用两个扬声器估计耳植入物用户的声音定位能力.
Emily Buss1, Margaret E Richter1, Amanda D Sloop1
1Department of Otolaryngology/Head & Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
Trends in hearing
|May 14, 2025
概括
声音源定位能力对于空间意识至关重要. 这项研究发现,虚拟声源紧密地模仿真实声源,这表明振幅调整是评估耳植入物使用者的空间听力的一种可行的临床工具.
科学领域:
- 听觉神经科学 听觉神经科学
- 听力学 听力学是指听力学.
- 语音和听力科学 语言和听力科学
背景情况:
- 空间听觉对于环境意识和沟通至关重要.
- 目前对空间听觉的临床评估,特别是对于助听器和耳植入物 (CI) 用户,是有限的.
- 在临床环境中,评估声音源本地化是具有挑战性的.
研究的目的:
- 为了比较使用真实与虚拟模拟源的声音源本地化.
- 评估振幅泛图用于空间听力评估的临床可行性.
- 调查虚拟声源对有听力损失的人使用CI或电声刺激的有效性.
主要方法:
- 在34名成年CI用户中,比较了真实和虚拟声音源的声音源本地化.
- 刺激包括200毫秒的语音形状噪声,呈现在各种方位 (-54°到+54°).
- 虚拟源是使用振幅调整模拟的;真实源使用物理扬声器.
主要成果:
- 在真实和虚拟源之间,本地化错误模式是相似的.
- 在真实和虚拟条件下的RMS错误之间发现了强烈的相关性 (r=0.89,p<.001).
- 虚拟来源显示,平均RMS升高为3.9°.
结论:
- 使用双扬声器振幅调整的声音源定位与真实源定位具有很高的相似性.
- 振幅分析为评估空间听力提供了一种潜在的有价值和临床可行的方法.
- 这种技术可以帮助评估CI用户的空间听力能力,当真实源测试是不切实际的.
相关概念视频
01:13The Cochlea
44.2K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
44.2K
01:21Perceiving Loudness, Pitch, and Location
173
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
173
01:06Echo
479
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
479