André Luiz Florentino1, Eva Laussac Diniz2, Plinio Thomaz Aquino-Jr3

  • 1Centro Universitário FEI - Fundação Educacional Inaciana Pe. Saboia de Medeiros, Electric Engineering, São Bernardo do Campo, 09850-901, Brazil. andre.florentino@edag.com.br.

Scientific data
|July 5, 2025
PubMed
概括

环境声音识别可以提高自动驾驶汽车的意识. 修改后的UrbanSound8K数据集 (US8K_AV) 增加了静音和背景类来支持这一发展.

相关概念视频

Echo01:06

Echo

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,...
603
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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...
436
Perception of Sound Waves01:01

Perception of Sound Waves

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...
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