在音频增强虚拟中共同沉浸:静态和近似的晚回声算法的案例研究
IEEE transactions on visualization and computer graphics
|October 2, 2023
概括
简化后响 (LR) 在音频增强虚拟 (AAV) 中对共同沉浸的影响最小. 检测虚拟声音欺骗者几乎是偶然的,这表明AAV可以容忍简化声学沉浸式音频.
科学领域:
- 声学 声学 在声学方面
- 虚拟现实 虚拟现实 虚拟现实
- 人与计算机的交互
背景情况:
- 沉浸式音频增强现实 (AAR) 需要虚拟声音与真实声音无法区分.
- 共同沉浸标准评估在真实环境中的虚拟声音集成.
- 音频增强虚拟 (AAV) 将现实世界的音频与合成声音生成相结合.
研究的目的:
- 为了研究简化的晚回声 (LR) 对AAV的共浸的影响.
- 评估改变的声学特性如何影响虚拟声音源的感知.
- 在AAR和AAV中建立一个评估沉浸式音频技术的方法.
主要方法:
- 在AAV环境中创建了一个实验设计.
- 参与者发现了"骗子"虚拟扬声器,这些扬声器以简化的LR条件进行染.
- 空间空间冲动响应被用于动态染同时虚拟扬声器.
主要成果:
- 伪造声源的检测率接近机会水平.
- 一个简化的LR条件显示对共浸的影响特别有限.
- 这些发现表明,简化LR对在测试的AAV场景中共同浸泡的影响很小.
结论:
- 简化后响似乎在评估的AAV场景中对共浸的影响有限.
- 拟议的方法可用于进一步研究AAR和AAV音频要求.
- 未来的研究可以探索不同的声学复杂性和染参数.
相关概念视频
Echo
532
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,...
532
Perception of Sound Waves
4.5K
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...
4.5K
Auditory Perception
357
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
357
Sound as Pressure Waves
2.4K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
The pressure fluctuation depends on the difference in displacements between the successive points in the...
2.4K
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
Standing Waves in a Cavity
954
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
954


