scholarly journals Psychoacoustic Principle, Methods, and Problems with Perceived Distance Control in Spatial Audio

2021 ◽  
Vol 11 (23) ◽  
pp. 11242
Author(s):  
Bosun Xie ◽  
Guangzheng Yu
Keyword(s):  
Auditory Perception ◽  
Distance Perception ◽  
Spatial Audio ◽  
Auditory Distance ◽  
Distance Control

One purpose of spatial audio is to create perceived virtual sources at various spatial positions in terms of direction and distance with respect to the listener. The psychoacoustic principle of spatial auditory perception is essential for creating perceived virtual sources. Currently, the technical means for recreating virtual sources in different directions of various spatial audio techniques are relatively mature. However, perceived distance control in spatial audio remains a challenging task. This article reviews the psychoacoustic principle, methods, and problems with perceived distance control and compares them with the principles and methods of directional localization control in spatial audio, showing that the validation of various methods for perceived distance control depends on the principle and method used for spatial audio. To improve perceived distance control, further research on the detailed psychoacoustic mechanisms of auditory distance perception is required.

scholarly journals The Role of Vision in Auditory Distance Perception

Perception ◽  
10.1068/p7153 ◽  
2012 ◽  
Vol 41 (2) ◽  
pp. 175-192 ◽  
Author(s):  
Esteban R Calcagno ◽  
Ezequiel L Abregú ◽  
Manuel C Eguía ◽  
Ramiro Vergara
Keyword(s):  
Sound Source ◽  
Visual Information ◽  
Auditory Perception ◽  
Horizontal Plane ◽  
Visual Cues ◽  
Distance Perception ◽  
Apparent Distance ◽  
Multisensory Interaction ◽  
Auditory Distance

In humans, multisensory interaction is an important strategy for improving the detection of stimuli of different nature and reducing the variability of response. It is known that the presence of visual information affects the auditory perception in the horizontal plane (azimuth), but there are few researches that study the influence of vision in the auditory distance perception. In general, the data obtained from these studies are contradictory and do not completely define the way in which visual cues affect the apparent distance of a sound source. Here psychophysical experiments on auditory distance perception in humans are performed, including and excluding visual cues. The results show that the apparent distance from the source is affected by the presence of visual information and that subjects can store in their memory a representation of the environment that later improves the perception of distance.

scholarly journals Creation of Auditory Augmented Reality Using a Position-Dynamic Binaural Synthesis System—Technical Components, Psychoacoustic Needs, and Perceptual Evaluation

2021 ◽  
Vol 11 (3) ◽  
pp. 1150
Author(s):  
Stephan Werner ◽  
Florian Klein ◽  
Annika Neidhardt ◽  
Ulrike Sloma ◽  
Christian Schneiderwind ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Auditory Perception ◽  
Audio Signal ◽  
Spatial Audio ◽  
Impulse Responses ◽  
Synthesis System ◽  
Perceptual Evaluation ◽  
Listening Tests ◽  
Work Done ◽  
Audio Reproduction

For a spatial audio reproduction in the context of augmented reality, a position-dynamic binaural synthesis system can be used to synthesize the ear signals for a moving listener. The goal is the fusion of the auditory perception of the virtual audio objects with the real listening environment. Such a system has several components, each of which help to enable a plausible auditory simulation. For each possible position of the listener in the room, a set of binaural room impulse responses (BRIRs) congruent with the expected auditory environment is required to avoid room divergence effects. Adequate and efficient approaches are methods to synthesize new BRIRs using very few measurements of the listening room. The required spatial resolution of the BRIR positions can be estimated by spatial auditory perception thresholds. Retrieving and processing the tracking data of the listener’s head-pose and position as well as convolving BRIRs with an audio signal needs to be done in real-time. This contribution presents work done by the authors including several technical components of such a system in detail. It shows how the single components are affected by psychoacoustics. Furthermore, the paper also discusses the perceptive effect by means of listening tests demonstrating the appropriateness of the approaches.

Auditory Distance Perception in Real, Virtual, and Mixed Environments

Mixed Reality ◽  
1999 ◽  
pp. 201-214 ◽  
Author(s):  
Jack M. Loomis ◽  
Roberta L. Klatzky ◽  
Reginald G. Golledge
Keyword(s):  
Distance Perception ◽  
Auditory Distance

scholarly journals Auditory Distance Control Using a Variable-Directivity Loudspeaker

2017 ◽  
Vol 7 (7) ◽  
pp. 666 ◽  
Author(s):  
Florian Wendt ◽  
Franz Zotter ◽  
Matthias Frank ◽  
Robert Höldrich
Keyword(s):  
Auditory Distance ◽  
Distance Control

scholarly journals Effect of Environment-Related Cues on Auditory Distance Perception in the Context of Audio-Only Augmented Reality

2021 ◽  
Vol 12 (1) ◽  
pp. 348
Author(s):  
Vincent Martin ◽  
Isabelle Viaud-Delmon ◽  
Olivier Warusfel
Keyword(s):  
Augmented Reality ◽  
Distance Perception ◽  
Distance Judgment ◽  
Acoustic Properties ◽  
Acoustic Cues ◽  
Seamless Integration ◽  
Acoustic Environment ◽  
Perceptual Evaluation ◽  
Auditory Distance ◽  
Context Cues

Audio-only augmented reality consists of enhancing a real environment with virtual sound events. A seamless integration of the virtual events within the environment requires processing them with artificial spatialization and reverberation effects that simulate the acoustic properties of the room. However, in augmented reality, the visual and acoustic environment of the listener may not be fully mastered. This study aims to gain some insight into the acoustic cues (intensity and reverberation) that are used by the listener to form an auditory distance judgment, and to observe if these strategies can be influenced by the listener’s environment. To do so, we present a perceptual evaluation of two distance-rendering models informed by a measured Spatial Room Impulse Response. The choice of the rendering methods was made to design stimuli categories in which the availability and reproduction quality of acoustic cues are different. The proposed models have been evaluated in an online experiment gathering 108 participants who were asked to provide judgments of auditory distance about a stationary source. To evaluate the importance of environmental cues, participants had to describe the environment in which they were running the experiment, and more specifically the volume of the room and the distance to the wall they were facing. It could be shown that these context cues had a limited, but significant, influence on the perceived auditory distance.

scholarly journals Brain dynamics that correlate with effects of learning on auditory distance perception

2014 ◽  
Vol 8 ◽  
Author(s):  
Matthew G. Wisniewski ◽  
Eduardo Mercado ◽  
Barbara A. Church ◽  
Klaus Gramann ◽  
Scott Makeig
Keyword(s):  
Distance Perception ◽  
Brain Dynamics ◽  
Auditory Distance
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