在现实的噪音中,语音识别和噪音适应
Miriam I Marrufo-Pérez1,2, Enrique A Lopez-Poveda1,2,3
1Instituto de Neurociencias de Castilla y León (INCYL), Universidad de Salamanca, Salamanca, Spain.
Trends in hearing
|May 15, 2025
概括
语音识别中的噪音适应改善了单词识别,因为单词在噪音开始时被延迟. 这项研究发现,这种适应甚至发生在现实的噪音中,独立于噪声特征.
科学领域:
- 听觉神经科学 听觉神经科学
- 语音感知 语音感知
- 精神声学是一种精神声学.
背景情况:
- 适应噪音可以提高语音识别,当单词在噪音发生后呈现时.
- 以前的研究主要使用合成噪音,限制了对现实环境适应性的理解.
研究的目的:
- 通过使用现实的掩盖声音来研究噪音适应.
- 确定噪声光谱和水平波动特征对适应的影响.
主要方法:
- 语音接收值 (Speech Reception Thresholds,SRTs) 测量了自然语音和语音编码的单词,从噪音开始的时间延迟有所不同 (50毫秒和800毫秒).
- 分析了49种现实的和合成的噪音;选择了6种代表性的噪音.
- 适应被量化为晚期与早期条件中的SRT改善.
主要成果:
- 对于自然语音,适应是最小的 (0.5dB),并且在各种噪音中保持一致.
- 在所有测试的现实噪音中,在语音编码语音中观察到显著的适应 (1.3 dB).
- 适应程度并不取决于噪声的光谱或水平波动特性.
结论:
- 在现实的杂环境中,语音识别中的噪音适应是可能的.
- 与自然语言相比,处理 (语音编码) 语音的适应效应更为明显.
- 噪声特征,如光谱含量和水平波动,不会显著影响观察到的适应程度.
相关概念视频
Perception of Sound Waves
4.7K
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...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
4.7K
Perceiving Loudness, Pitch, and Location
1.3K
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...
1.3K


