Widgets Réactifs 3D pour l’interaction musicale

National audienceNotre travail porte sur l'utilisation de l'interaction 3D immersive pour la performance musicale. De nombreuses recherches ont été menées sur l'utilisation d'interfaces graphiques pour le contrôle musical. Elles ont notamment décrit l'intérêt que présentent les widgets réactifs, éléments graphiques qui permettent à la fois le contrôle de processus sonores et la visualisation d'informations sur ces processus. D'autres recherches ont montré les possibilités apportées par la réalité virtuelle en matière d'immersion et d'interaction. Néanmoins, aucune des applications 3D musicales développées jusqu'à maintenant n'exploite les avantages des widgets réactifs. Nous cherchons donc à explorer cette voie. Pour cela, nous avons développé un outil de création d'interfaces 3D, Poulpe3D. Il nous semble primordial de chercher la meilleure façon d'associer les paramètres visuels des widgets et les paramètres perceptifs sonores afin de permettre un contrôle efficace et un retour d'informations pertinent. Pour cela, nous nous appuyons sur plusieurs pistes de recherche, qui nous conduisent à penser qu'il est impossible de fixer ces associations de manière objective et à envisager une série de tests en utilisant un outil 3D de mapping intégré à Poulpe3D. Cet outil donne la possibilité à chaque utilisateur de configurer les liens selon ses préférences

Hydrogeology of the Queenstown 1:500 000 map region (Sheet 3126)

The Groundwater characteristics of a portion of the Eastern Cape are depicted on a General Hydrogeological Map (Queenstown 3126) at 1 :500 000 scale. The purpose of the map and accompanying text is to provide a synoptic overview of the hydrogeology of the area. The "fractured and intergranular" aquifer type predominates in the more humid eastern part of the study area where the lithologies are more highly weathered whereas the fractured type predominates in the drier west. For the bulk of the area borehole yields are in the 0.5 - 2.0 ℓ/sec range. Higher yields (in the 2.0 - 5.0 ℓ/sec range) are common only in a small area in the south-west of the map. Lowest yields (0.1 - 0.5 ℓ/sec) are obtained in an area immediately north of East London and in the Dwyka Group near the NE coast. It is important to note that these yield ranges are merely a measure of the central tendency, and that higher yields - in excess of 3 ℓ/sec - could well be obtainable at optimal hydrogeological target features within these areas. Highest borehole yields are obtained in folded areas (restricted to the southern edge of the study area) followed by rocks with dolerite intrusions (common over the bulk of the study area). Other targets include fractured sedimentary and volcanic rock and unconsolidated deposits. Yields obtained from dolerite contact zones vary across the area; differences correspond to spatial variations in the style of intrusion. Highest success rates are obtained in areas intruded by a combination of dykes, ring-shaped sheets and irregular sheets while poor results are obtained in areas intruded by thick massive sills. Air photo and satellite image interpretation, geological mapping, magnetic, electrical resistivity and electromagnetic geophysical methods can be used to locate drilling target features. Groundwater quality is good since electrical conductivities over much of the area are lower than 70 mS/m and rarely exceed the South African Water quality guideline limit for human consumption of 300 mS/m. The volume of groundwater abstractable ranges between approximately 2 000 m³/km²/annum and 80 000 m³/km²/annum and is limited by either volumes of recharge or subsurface storage

Hydrogeology of the Queenstown 1:500 000 map region (Sheet 3126)

The Groundwater characteristics of a portion of the Eastern Cape are depicted on a General Hydrogeological Map (Queenstown 3126) at 1 :500 000 scale. The purpose of the map and accompanying text is to provide a synoptic overview of the hydrogeology of the area. The "fractured and intergranular" aquifer type predominates in the more humid eastern part of the study area where the lithologies are more highly weathered whereas the fractured type predominates in the drier west. For the bulk of the area borehole yields are in the 0.5 - 2.0 ℓ/sec range. Higher yields (in the 2.0 - 5.0 ℓ/sec range) are common only in a small area in the south-west of the map. Lowest yields (0.1 - 0.5 ℓ/sec) are obtained in an area immediately north of East London and in the Dwyka Group near the NE coast. It is important to note that these yield ranges are merely a measure of the central tendency, and that higher yields - in excess of 3 ℓ/sec - could well be obtainable at optimal hydrogeological target features within these areas. Highest borehole yields are obtained in folded areas (restricted to the southern edge of the study area) followed by rocks with dolerite intrusions (common over the bulk of the study area). Other targets include fractured sedimentary and volcanic rock and unconsolidated deposits. Yields obtained from dolerite contact zones vary across the area; differences correspond to spatial variations in the style of intrusion. Highest success rates are obtained in areas intruded by a combination of dykes, ring-shaped sheets and irregular sheets while poor results are obtained in areas intruded by thick massive sills. Air photo and satellite image interpretation, geological mapping, magnetic, electrical resistivity and electromagnetic geophysical methods can be used to locate drilling target features. Groundwater quality is good since electrical conductivities over much of the area are lower than 70 mS/m and rarely exceed the South African Water quality guideline limit for human consumption of 300 mS/m. The volume of groundwater abstractable ranges between approximately 2 000 m³/km²/annum and 80 000 m³/km²/annum and is limited by either volumes of recharge or subsurface storage

Real-time 3D Graphic Augmentation of Therapeutic Music Sessions for People on the Autism Spectrum

This thesis looks at the requirements analysis, design, development and evaluation of an application, CymaSense, as a means of improving the communicative behaviours of autistic participants through therapeutic music sessions, via the addition of a visual modality. Autism spectrum condition (ASC) is a lifelong neurodevelopmental disorder that can affect people in a number of ways, commonly through difficulties in communication. Interactive audio-visual feedback can be an effective way to enhance music therapy for people on the autism spectrum. A multi-sensory approach encourages musical engagement within clients, increasing levels of communication and social interaction beyond the sessions.Cymatics describes a resultant visualised geometry of vibration through a variety of mediums, typically through salt on a brass plate or via water. The research reported in this thesis focuses on how an interactive audio-visual application, based on Cymatics, might improve communication for people on the autism spectrum.A requirements analysis was conducted through interviews with four therapeutic music practitioners, aimed at identifying working practices with autistic clients. CymaSense was designed for autistic users in exploring effective audio-visual feedback, and to develop meaningful cross-modal mappings of musical practitioner-client communication. CymaSense mappings were tested by 17 high functioning autistic participants, and by 30 neurotypical participants. The application was then trialled as a multimodal intervention for eight participants with autism, over a 12-week series of therapeutic music sessions. The study captured the experiences of the users and identified behavioural changes as a result, including information on how CymaSense could be developed further. This dissertation contributes evidence that multimodal applications can be used within therapeutic music sessions as a tool to increase communicative behaviours for autistic participants