在自我旋转过程中,反响中的语音可理解性会降低
Ľuboš Hládek1, Bernhard U Seeber1
1Audio Information Processing, Technical University of Munich, Munich, Germany.
Trends in hearing
|July 21, 2023
概括
人们自然会轮流,以改善在噪音环境中的语音理解. 视觉线索提高了自旋转的准确性和语音可理解性,尽管在自旋转过程中整体可理解性略有下降.
科学领域:
- 听觉感知是一种听觉感知.
- 人类行为人类行为.
- 声学信号处理 声学信号处理
背景情况:
- 在杂环境中对语音可理解性的传统研究假定静止的参与者和声音来源.
- 参与者的积极自我旋转引入了动态的空间考虑.
- 了解复杂的听觉场景中的适应性行为至关重要.
研究的目的:
- 调查个人是否自发旋转以优化空间化听觉环境中的语音可理解性.
- 确定视觉线索 (avatar) 在引导自我旋转和改善语音感知方面的好处.
- 在自旋转过程中与静态条件下比较语音可理解性.
主要方法:
- 参与者进行了空间化语音测试,包括向听觉目标自旋转.
- 来自不同位置 (0°,±90°,180°) 的语音刺激与额头噪音 (0°) 呈现.
- 条件包括仅有音频,音频视觉 (有avatar) 和静态基线.
主要成果:
- 参与者的自我定位低于目标位置,但在声学上接近最佳.
- 与仅用于侧向目标的音频相比,在视听条件下语音可理解性更高.
- 在自旋转时,后方目标的可理解性有所改善,但与静态目标相比,横向目标的可理解性有所下降,部分原因是空间揭示.
结论:
- 与静态条件相比,在自旋转过程中,语音可理解性通常会降低.
- 视觉位置线索有助于更准确的自旋转,并提高语音可理解性.
- 目前的静态空间揭示模型可能会高估动态自旋转场景中的性能.
相关概念视频
Echo
536
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,...
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,...
536
Sound Waves: Resonance
2.6K
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
2.6K
Sound Waves: Interference
3.8K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.8K
Respiratory System Abnormal Finding II: Palpation and Auscultation
544
In assessing respiratory abnormalities, palpation and auscultation are critical tools for detecting and interpreting various pathophysiological changes. These techniques provide insight into underlying disorders by evaluating tactile sensations and sounds produced by the respiratory system.
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
Palpation Findings
During a respiratory assessment, palpation can reveal several vital abnormalities:
544
Concept of Resonance and its Characteristics
5.1K
If a driven oscillator needs to resonate at a specific frequency, then very light damping is required. An example of light damping includes playing piano strings and many other musical instruments. Conversely, to achieve small-amplitude oscillations as in a car's suspension system, heavy damping is required. Heavy damping reduces the amplitude, but the tradeoff is that the system responds at more frequencies. Speed bumps and gravel roads prove that even a car's suspension system is not...
5.1K
Reflection of Waves
3.8K
When a wave travels from one medium to another, it gets reflected at the boundary of the second medium. A common example of this is when a person yells at a distance from a cliff and hears the echo of their voice. The sound waves (longitudinal waves) traveling in the air are reflected from the bounding cliff. Similarly, flipping one end of a string whose other end is tied to a wall causes a pulse (transverse wave) to travel through the string, which gets reflected upon reaching the wall. In...
3.8K


