相关实验视频

Updated: Sep 10, 2025

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage

Published on: February 10, 2023

噪音中的语音测量:根据正常听力受试者的语音信号水平呈现的信号噪音比损失值

P Toulemonde¹, F Giraudet², J Macario¹

¹Department of Otology and Neurotology, University Hospital Center of Lille, University of Lille, 59000 Lille, France.

European annals of otorhinolaryngology, head and neck diseases

|August 21, 2025

概括

对于正常听力的人来说,Vocal Rapide dans le Bruit (VRB) 测试有效地评估了噪音中的听力. 不同级别的演讲 (65dB SPL和45dB SPL) 并没有显著改变测试结果,验证了其在不同强度的使用.

科学领域:

听力学
语音病理学
神经科学

背景情况:

评估噪音中的语音识别对于诊断听力障碍至关重要.
声响快速测试 (VRB) 是一种用于评估听力困难的语音噪音测试.
了解呈现水平对VRB测试性能的影响对于其临床应用很重要.

研究的目的:

在VRB测试中评估心理函数曲线和信号噪声比 (SNR) 损失.
在两个不同的语音呈现水平上比较VRB测试性能:65dB SPL (VRB65) 和45dB SPL (VRB45).
评估VRB测试在正常听力受试者的不同信号强度中的可靠性.

主要方法:

听力正常的成年人接受了全面的听力评估.
根据标准方案,使用VRB测试在65dB SPL (VRB65) 进行了语音噪声测试.
进行了第二系列VRB测试,句子呈现水平降低为45dB SPL (VRB45).

主要成果:

在VRB65和VRB45之间没有观察到显著的心理功能曲线变化.
在两种呈现级别 (VRB65和VRB45) 中,信号噪声比 (SNR) 损失值保持一致.
这项研究包括29名听力正常的受试者.

结论:

在噪音环境中识别听力挑战,VRB语音噪音测试是一个有价值的工具.
不同强度级别的VRB句子 (65dBSPL与45dBSPL) 在正常听力个体中没有显著差异.
这一发现支持VRB测试在各种信号呈现水平上的实用性,有助于诊断隐性听力损失并改进管理策略.

关键词:

在噪音下听力隐藏的听力损失在噪音中的语音测量在VRB ((45)

更多相关视频

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Neuro-rehabilitation Approach for Sudden Sensorineural Hearing Loss

Published on: January 25, 2016

A Low Cost Setup for Behavioral Audiometry in Rodents

A Low Cost Setup for Behavioral Audiometry in Rodents

Published on: October 16, 2012

相关概念视频

Sound Intensity Level

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...

Perception of Sound Waves

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...

Hearing

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

Perceiving Loudness, Pitch, and Location

Perceiving Loudness, Pitch, and Location

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...