Mathieu Paquier

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This study aims at evaluating the audibility of spectral modifications induced by slight but realistic changes in the headphone position over a listener's ears. Recordings have been performed on a dummy head on which 2 different headphone models were placed 8 times each. Music excerpts and pink noise were played over the headphones and recorded with(More)
This study presents an objective comparison between two rigid spherical microphone arrays of the exact same size but differing by the type of capsules. An analysis of the simulations and the encoding process is presented and known limitations of the spherical arrays are discussed such as the degraded reconstruction of the spherical harmonics due to the size(More)
Interaction between auditory and visual perceptions on distance estimations in a virtual environment. HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or(More)
Ten listeners were asked to identify and rate the quality of speech sounds processed in such a way that only the most energetic spectral components were retained. The influence of both the number of retained spectral components and of the width of the frequency bands surrounding these components was studied. The sounds consisted of vowel-consonant-vowel(More)
Directional loudness is that phenomenon by which the loudness of a sound may vary according to the localization of its source. This phenomenon has been mainly observed for high-frequency sounds, for sources located in the horizontal plane. Because of the acoustic shadow of the head, the left and right ear pressures are modified depending on the source(More)
SESSIONS gggggggggggggggggggggggggg INTRODUCTION A purpose of the computational auditory scene analysis is the separation of simultaneous acoustic sources. The establishment of such a system in automatic recognition algorithms or in hearing aids could resolve the cocktail party problem (performances are quite good when only one source is present, but as(More)
When presented with a spatially discordant auditory-visual stimulus, subjects sometimes perceive the sound and the visual stimuli as coming from the same location. Such a phenomenon is often referred to as perceptual fusion or ventriloquism, as it evokes the illusion created by a ventriloquist when his voice seems to emanate from his puppet rather than from(More)
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