scholarly journals Sound Spectrum Influences Auditory Distance Perception of Sound Sources Located in a Room Environment

2017 ◽  
Vol 8 ◽  
Author(s):  
Ignacio Spiousas ◽  
Pablo E. Etchemendy ◽  
Manuel C. Eguia ◽  
Esteban R. Calcagno ◽  
Ezequiel Abregú ◽  
...  
Keyword(s):  
Distance Perception ◽  
Sound Sources ◽  
Auditory Distance ◽  
Sound Spectrum

scholarly journals Effects of interpersonal familiarity on the auditory distance perception of level-equalized reverberant speech

Acta Acustica ◽  
2020 ◽  
Vol 4 (6) ◽  
pp. 26
Author(s):  
Özgen Demirkaplan ◽  
Hüseyin Hacıhabiboğlu
Keyword(s):  
Distance Perception ◽  
Speech Signals ◽  
Sound Sources ◽  
Speech Stimuli ◽  
Auditory Distance ◽  
Subjective Experiment ◽  
Listening Task ◽  
Reverberant Speech ◽  
Binaural Listening ◽  
Semantic Properties

Familiarity with sound sources is known to have a modulatory effect on auditory distance perception. However, the level of familiarity that can affect distance perception is not clearly understood. A subjective experiment that aims to investigate the effects of interpersonal familiarity on auditory distance perception with level-equalized stimuli is reported. The experiment involves a binaural listening task where different source distances between 0.5 and 16 m were emulated by convolving dry speech signals with measured binaural room impulse responses. The experimental paradigm involved level-equalized stimuli comprising speech signals recorded from different-gender couples who have self-reported to have known each other for more than a year with daily interaction. Each subject judged the distances of a total of 15 different speech stimuli from their partner as well as spectrally most similar and most dissimilar strangers, for six different emulated distances. The main finding is that a similar but unfamiliar speaker is localized to be further away than a familiar speaker. Another finding is that the semantic properties of speech can potentially have a modulating effect on auditory distance judgements.

scholarly journals Effects of stimulus order on auditory distance discrimination of virtual nearby sound sources

2017 ◽  
Vol 141 (4) ◽  
pp. EL375-EL380 ◽  
Author(s):  
Simone Spagnol ◽  
Rebekka Hoffmann ◽  
Árni Kristjánsson ◽  
Federico Avanzini
Keyword(s):  
Sound Sources ◽  
Stimulus Order ◽  
Auditory Distance ◽  
Distance Discrimination

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 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 On the influence of non-individual binaural cues and the impact of level normalization on auditory distance estimation of nearby sound sources

Acta Acustica ◽  
2021 ◽  
Vol 5 ◽  
pp. 10
Author(s):  
Johannes M. Arend ◽  
Heinrich R. Liesefeld ◽  
Christoph Pörschmann
Keyword(s):  
Distance Estimation ◽  
Relative Distance ◽  
Comparison Task ◽  
Sound Sources ◽  
Binaural Cues ◽  
Auditory Distance ◽  
Normalization Methods ◽  
Forced Choice Task ◽  
Interaural Level Differences ◽  
The Impact

Nearby sound sources provide distinct binaural cues, mainly in the form of interaural level differences, which vary with respect to distance and azimuth. However, there is a long-standing controversy regarding whether humans can actually utilize binaural cues for distance estimation of nearby sources. Therefore, we conducted three experiments using non-individual binaural synthesis. In Experiment 1, subjects had to estimate the relative distance of loudness-normalized and non-normalized nearby sources in static and dynamic binaural rendering in a multi-stimulus comparison task under anechoic conditions. Loudness normalization was used as a plausible method to compensate for noticeable intensity differences between stimuli. With the employed loudness normalization, nominal distance did not significantly affect distance ratings for most conditions despite the presence of non-individual binaural distance cues. In Experiment 2, subjects had to judge the relative distance between loudness-normalized sources in dynamic binaural rendering in a forced-choice task. Below chance performance in this more sensitive task revealed that the employed loudness normalization strongly affected distance estimation. As this finding indicated a general issue with loudness normalization for studies on relative distance estimation, Experiment 3 directly tested the validity of loudness normalization and a frequently used amplitude normalization. Results showed that both normalization methods lead to remaining (incorrect) intensity cues, which subjects most likely used for relative distance estimation. The experiments revealed that both examined normalization methods have consequential drawbacks. These drawbacks might in parts explain conflicting findings regarding the effectiveness of binaural cues for relative distance estimation in the literature.

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.

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