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相关概念视频

Hearing01:31

Hearing

51.9K
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.
51.9K
Anatomy of the Ear01:16

Anatomy of the Ear

7.6K
Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
7.6K
The Cochlea01:13

The Cochlea

44.6K
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.
44.6K
Echo01:06

Echo

494
The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...
494
Hair Cells01:22

Hair Cells

40.1K
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.
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相关实验视频

Updated: Jun 12, 2025

A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds
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A Lightweight, Headphones-based System for Manipulating Auditory Feedback in Songbirds

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智能歌曲识别通过基于空洞微观结构的超敏感人造鼓膜.

Shaopeng Li1, Jiangtao Tian2, Ke Li1

  • 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|September 20, 2024
PubMed
概括

研究人员使用新的几何工程开发了超敏感的人造鼓膜. 这些智能设备可以高精度地识别复杂的歌曲,为先进的人机交互铺平了道路.

关键词:
声学传感器的声音传感器人工鼓膜是人为的空洞的微观结构空洞的微观结构压力阻抗传感器传感器音乐歌曲识别 音乐歌曲识别

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科学领域:

  • 材料科学 材料科学 材料科学
  • 声学 声学 在声学上
  • 人工智能的人工智能

背景情况:

  • 目前的灵活声音传感器具有有限的功能,由于灵敏度不足,通常仅限于识别简单的语音.
  • 开发具有智能的人工耳朵需要先进的声音检测和复杂的听觉信息的复杂处理.

研究的目的:

  • 为了构建能够智能识别歌曲的超敏感人造鼓膜.
  • 为了提高声音检测灵敏度和复杂声学信号的处理能力.

主要方法:

  • 在软微结构阵列中的传感单元的新型几何工程,以减少有效模量.
  • 利用机器学习算法进行复杂的歌曲识别.
  • 制造一个具有空洞金字塔架构和多孔斜率的传感器.

主要成果:

  • 取得了前所未有的压力灵敏度,为6.9 × 10^3 kPa^-1.
  • 显示的声音检测灵敏度超过报告的基准值1-2个数量级.
  • 从各种数据库中准确识别了100%的训练歌曲和97.7%的测试歌曲.

结论:

  • 基于空洞微观结构的人工鼓膜在声音检测和智能识别方面表现出色.
  • 这项技术在人机交互和可穿戴声学设备方面具有很大的应用潜力.
  • 这项研究展示了敏感的人工听觉和复杂的听觉处理方面的突破.