557 The role of different cortex areas in estimation of sound source movement

Timbre is typically investigated as a perceptual attribute that differentiates instruments at one pitch. Yet the perceptual usefulness of timbre is that it allows listeners to recognize one instrument at different pitches. Using stimuli produced across the playing range by three wind instruments from two categories, woodwind and brass, we measured listeners' judgments of instrumental timbre across pitch in a dissimilarity task and measured listeners' ability to identify stimuli as being produced by the same or different instrument in a three-note oddball task. The resulting multidimensional scaling representation showed that Dimension 1 correlated with pitch, whereas Dimension 2 correlated with spectral centroid and separated the instrumental stimuli into the categories woodwind and brass. For three-note sequences, the task was extremely difficult for the woodwind pair, with listeners typically choosing the most dissimilarly pitched stimulus as coming from the oddball source. In contrast, the three-note sequences were easy for the woodwind-brass pairs. The results from these experiments illustrate the difficulty of extrapolating the timbre of a sound source across large differences in pitch.

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The Role of Sound Source Perception in Gestural Sound Description

ACM Transactions on Applied Perception ◽

10.1145/2536811 ◽

2014 ◽

Vol 11 (1) ◽

pp. 1-19 ◽

Cited By ~ 15

Author(s):

B. Caramiaux ◽

F. Bevilacqua ◽

T. Bianco ◽

N. Schnell ◽

O. Houix ◽

...

Keyword(s):

Sound Source

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The role of spatial detail in sound-source localization: Impact on head-related transfer function modeling and personalization

The Journal of the Acoustical Society of America ◽

10.1121/1.4806291 ◽

2013 ◽

Vol 133 (5) ◽

pp. 3515-3515

Author(s):

Griffin D. Romigh ◽

Douglas S. Brungart ◽

Richard M. Stern ◽

Brian D. Simpson

Keyword(s):

Transfer Function ◽

Source Localization ◽

Sound Source ◽

Sound Source Localization ◽

Head Related Transfer Function

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Archaeoacoustic Research of Ljubostinja and Naupara Medieval Monastic Churches

Open Archaeology ◽

10.1515/opar-2019-0018 ◽

2019 ◽

Vol 5 (1) ◽

pp. 274-283

Author(s):

Zorana Đorđević ◽

Dragan Novković

Keyword(s):

Impulse Response ◽

Sound Source ◽

Religious Practice ◽

Orthodox Church ◽

Architectural Style ◽

Acoustic Parameters ◽

Acoustical Properties

AbstractThe overall experience of religious practice is significantly affected by the acoustical properties of temples. Divine service is the most important act in the Orthodox Church, which equally demands intelligibility of speech for preaching and as well as adequate acoustics for Byzantine chanting as a form of a song-prayer. In order to better understand and contribute to unlocking the role of sound in these historical sacral spaces, this paper explores the acoustics of two well-preserved Orthodox churches, from Ljubostinja and Naupara monastery, built in the last building period of medieval Serbia (1371–1459). These represent two types of the Morava architectural style – triconch combined with a developed and compressed inscribed cross, respectively. Using EASERA software, we measured the impulse response for two sound source positions – in the altar and in the southern chanting apse, as the main points from which the Orthodox service is carried out. Thus obtained acoustic parameters (RT, EDT, C50 and STI) were further analysed, pointing out the differences in experiencing sound between naos and narthex, as well as how the position of the sound source influenced the experience of sound. Finally, we compared the results with previous archaeoacoustic research of the churches from the same building period.

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Sound Externalization: A Review of Recent Research

Trends in Hearing ◽

10.1177/2331216520948390 ◽

2020 ◽

Vol 24 ◽

pp. 233121652094839 ◽

Cited By ~ 3

Author(s):

Virginia Best ◽

Robert Baumgartner ◽

Mathieu Lavandier ◽

Piotr Majdak ◽

Norbert Kopčo

Keyword(s):

Virtual Reality ◽

Hearing Aids ◽

Sound Source ◽

Practical Importance ◽

The Past ◽

Quantitative Approaches

Sound externalization, or the perception that a sound source is outside of the head, is an intriguing phenomenon that has long interested psychoacousticians. While previous reviews are available, the past few decades have produced a substantial amount of new data.In this review, we aim to synthesize those data and to summarize advances in our understanding of the phenomenon. We also discuss issues related to the definition and measurement of sound externalization and describe quantitative approaches that have been taken to predict the outcomes of externalization experiments. Last, sound externalization is of practical importance for many kinds of hearing technologies. Here, we touch on two examples, discussing the role of sound externalization in augmented/virtual reality systems and bringing attention to the somewhat overlooked issue of sound externalization in wearers of hearing aids.

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Directional Sensitivity of Saccular Microphonic Potentials in the Haddock

Journal of Experimental Biology ◽

10.1242/jeb.59.2.425 ◽

1973 ◽

Vol 59 (2) ◽

pp. 425-433 ◽

Cited By ~ 1

Author(s):

P. S. ENGER ◽

A. D. HAWKINS ◽

O. SAND ◽

C. J. CHAPMAN

Keyword(s):

Sound Source ◽

Sensory Cells ◽

Directional Sensitivity ◽

Sound Stimulation ◽

Vibration Direction ◽

Horizontal Vibration ◽

Implanted Electrodes ◽

Maximal Sensitivity ◽

Sound Reception

1. Microphonic potentials from the sacculus in the haddock have been recorded by implanted electrodes during horizontal vibration of the fish in air. This gives a good simulation of sound stimulation in water. 2. The microphonic potential amplitude was a function of the vibration angle, and from most recording loci maximal amplitudes were obtained for vibration directions parallel to the long axis of the fish. The sensory cells contributing to this response are therefore most sensitive to displacements in the same direction as sound-induced swimbladder pulsations would produce. This result thus supports the theory of an accessory role of the swimbladder in sound reception. 3. Highest sensitivity to vibration directions other than parallel to the long axis of the fish has been obtained from other recording loci. One example of highest sensitivity to a vibration direction at right angle to the long axis of the fish is presented. 4. The findings that different sensory cells appear to have different axes of maximal sensitivity to vibration provides one possible neurological explanation for the ability of fish to detect the direction to a sound source.

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The Role of Vision in Auditory Distance Perception

Perception ◽

10.1068/p7153 ◽

2012 ◽

Vol 41 (2) ◽

pp. 175-192 ◽

Cited By ~ 24

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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