汞中毒的表现有颤抖、记忆力衰退、易怒和视力听觉下降。
Symptoms of mercury poisoning include tremors, memory prblems, irritability, and changes in vision or hearing.
结论驾驶疲劳后听觉非随意注意能力下降。
Conclusion The ability of auditory involuntary attention declines after driving fatigue.
对于年龄引起的听觉损耗（老年性耳聋）来说，随着年龄增长，内耳逐渐发生异变从而逐渐引起听觉一点一点下降。
In age-related hearing loss (presbycusis), changes in the inner ear that occur as you grow older cause a gradual but steady hearing loss.
实验表明：同时利用音频和视觉信息的多模式VAD比基于帧能量的听觉VAD在帧错误率上有55.0%的相对下降，在断句错误率上有98.5%的相对下降。
Experiments show a 55.0% reduction in the frame error rate and a 98.5% reduction in sentence breaking error rate with the multimodal VAD as compared to the frame energy-based audio VAD.
但语音识别系统忽略语言的视觉特性，仅仅利用听觉特性，使得语音识别系统在噪声环境下，识别率大大下降。
However, audio-recognition system only USES the audio information of speech, and ignores the visual features of it. Under the noise circumstance, the recognition rate declines so much.
另一个在耳机上比较明显的听觉现象是长时间聆听造成的听觉灵敏度下降。因为耳朵会适应大音量的声音；
Another hearing phenomenon that seems to be more noticeable with headphones is a decreasing sensitivity to sound levels over time, as the ears adapt to loud sounds.
另一个在耳机上比较明显的听觉现象是长时间聆听造成的听觉灵敏度下降。因为耳朵会适应大音量的声音；
Another hearing phenomenon that seems to be more noticeable with headphones is a decreasing sensitivity to sound levels over time, as the ears adapt to loud sounds.
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