语音感知作为频道数和频道相互作用的函数在耳植入物模拟中的语音感知
Mustafa Yuksel1, Sultan Nur Kaya1
1Ankara Medipol University Faculty of Health Sciences, Department of Audiology, Ankara, Turkey.
Medeniyet medical journal
|December 27, 2023
概括
耳植入物 (CI) 通道相互作用显著影响词识别分数 (WRS) 超过通道的数量. 优化道交互对于改善CI语音感知至关重要.
科学领域:
- 听觉神经科学 听觉神经科学
- 生物医学工程 生物医学工程
- 语音处理 语音处理
背景情况:
- 耳植入物 (CI) 的目的是通过刺激听觉神经来恢复听力.
- CI处理受到减少频率范围的限制,影响光谱和时间暗示传输.
- 了解影响CI用户语音感知的因素对于设备优化至关重要.
研究的目的:
- 在CI模拟中调查频道数量对文字识别分数 (WRS) 的影响.
- 分析道相互作用对IC使用者的WRS的影响.
- 为了确定频道数与频道相互作用对语音感知的相对重要性.
主要方法:
- 使用CI模拟框架进行了两项实验,每个实验共有29名参与者.
- 实验1评估了WRS使用8,12,16和22通道的语音编码和非语音编码单词列表.
- 实验2评估了WRS在高,中,低通道相互作用条件下.
主要成果:
- 增加通道数量通常改善了WRS,在大多数条件之间发现了显著的差异 (p<0.01).
- 在通道相互作用条件下,WRS显著变化,得分为2.2% (高),20.6% (中) 和50.6% (低) (p<0.01).
- 频道相互作用在WRS上表现出比频道数量更明显的影响.
结论:
- 虽然频道数量影响WRS,但频道相互作用在语音感知中起着更为关键的作用.
- 在所有道交互级别中观察到WRS的显著差异,突出其重要性.
- 在信号处理和CI配件中优先考虑通道交互对于提高用户语音理解至关重要.
相关概念视频
01:13The Cochlea
45.0K
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.
45.0K
01:21Perceiving Loudness, Pitch, and Location
215
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...
215
01:22Hair Cells
40.5K
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
40.5K
01:15Auditory Pathway
5.4K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
5.4K
01:31Hearing
52.3K
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.
52.3K
01:17Auditory Perception
340
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
340