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Audio Haptics

 
Interaction with virtual objects is a common event in the virtual environment. In these situations, audio and haptic feedback plays an important roll in increasing the sensation of presence in the virtual environment. For example, in the real world, if we wished to know the inner structure of a wall or the material that it is made of we would hit it to feel the reaction force and hear the sound generated. We can recognise the material and inner structure of the object by the reaction force and the sound. In the virtual environment, it is quite natural that we should want to sense the audio and haptic sensation from virtual objects.
Currently, most virtual reality systems with 3D auditory feedback can produce a good sensation of presence to the users. They can generate sounds from a car on a virtual street or from a radio in a virtual room using reverberations from pre-recorded sounds. This can also be applied to urban environmental simulators or amusement systems etc.
However, when we hit a real object, the sound depends on the location of the contact and the shape and attributes of the object. It is difficult to generate these sounds without the actual pre-recorded sounds of the objects being available in the virtual environment. Also, the sound localisation of the sound source near the user is not fine-tuned in current 3D sound systems.
As a solution to these problems, we introduce a method called AudioHaptics. AudioHaptics supports the sound of collisions based on a physical model and increases the accuracy of sound localisation near to the user

Detailed explanation