客观歧视双模语音使用频率后的响应
Can Xu1, Fan-Yin Cheng1, Sarah Medina1
1Department of Speech, Language, and Hearing Sciences, University of Texas at Austin, 2504A Whitis Ave. (A1100), Austin 78712-0114, TX, USA.
Hearing research
|July 13, 2023
概括
双方式听力结合了耳植入物 (CI) 和助听器,改善了语音识别. 频率跟踪响应 (FFR) 可以通过测量双模听力中语音线索的神经编码来预测个体的成功.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音处理 语音处理
- 机器学习在听力学中的应用
背景情况:
- 双方式听觉,结合耳植入物 (CI) 与对侧助听器,提供优越的语音识别,与单独CI相比.
- 预测双模听力中的个人成功仍然具有挑战性,潜在的驱动因素包括基本频率 (f0) 和细结构暗示提取.
- 频率下列响应 (FFR) 可能反映在双模听条件下这些关键语音线索的神经编码.
研究的目的:
- 在模拟双模语音中对f0和F1的神经编码进行参数性研究.
- 使用机器学习算法在双模条件下客观地区分FFR.
- 为了确定FFR是否可以预测双模听力中的感知益处.
主要方法:
- 在五个声波带宽中,使用声编码器和低通波器创建了模拟的双模听觉条件.
- 使用相同的f0.0的三个元音 (/ε/, /i/, /ʊ/) 来唤起后续频率响应 (FFR).
- 机器学习被用来分类FFR,并使用BKB-SIN测试来评估感知性能.
主要成果:
- 在FFR中,f0和F1组件的神经编码随着模拟非植入式耳朵的声波带宽增加而得到改善.
- 增加了与带宽相关的FFR频谱差异,通过机器学习导致了更准确的分类和歧视.
- 增强的f0和F1神经编码预测了在语音噪音任务中的感知双模式益处.
结论:
- 频率下列响应 (FFR) 在模拟双模听力中显示了语音线索的增强神经表达,声带宽增加.
- 机器学习可以有效地区分FFR,反映出对双模态语音感知至关重要的光谱差异.
- 作为一个客观的工具来评估个体变异性和预测双模听力结果,FFR具有前景.
相关概念视频
Determination of Expected Frequency
2.2K
Suppose one wants to test independence between the two variables of a contingency table. The values in the table constitute the observed frequencies of the dataset. But how does one determine the expected frequency of the dataset? One of the important assumptions is that the two variables are independent, which means the variables do not influence each other. For independent variables, the statistical probability of any event involving both variables is calculated by multiplying the individual...
2.2K
Expected Frequencies in Goodness-of-Fit Tests
2.6K
A goodness-of-fit test is conducted to determine whether the observed frequency values are statistically similar to the frequencies expected for the dataset. Suppose the expected frequencies for a dataset are equal such as when predicting the frequency of any number appearing when casting a die. In that case, the expected frequency is the ratio of the total number of observations (n) to the number of categories (k).
2.6K
Frequency Response of BJT
896
The frequency response of a Bipolar Junction Transistor (BJT) in a common-emitter configuration is critical to its functionality, especially in applications involving amplification of alternating current (AC) signals. This response can be analyzed through low-frequency and high-frequency equivalent circuits, considering various internal parameters and external conditions.
Low-Frequency Response: At low frequencies, the behavior of the BJT is determined by its DC bias point, which is set by the...
Low-Frequency Response: At low frequencies, the behavior of the BJT is determined by its DC bias point, which is set by the...
896
Frequency-Domain Interpretation of PD Control
143
Proportional-Derivative (PD) controllers are widely used in fan control systems to improve stability and performance. A fan control system can be effectively represented using a Bode plot to illustrate the impact of a PD controller through its transfer function. The Bode plot visually conveys how PD control modifies the fan's response across various frequencies, providing a frequency domain interpretation of the controller's behavior.
The proportional control gain, combined with the...
The proportional control gain, combined with the...
143


