Non-Linguistic Sound

Non-linguistic sound refers to the vocalisations made by a person which are not phoneme based, but still convey valuable meaning. Sneezing, coughing, snorting, passing wind, even laughter. Such sounds, or the neural signals that would trigger them. must be processed by any speech recognition system, if it is to achieve a full range of interaction, within a virtual environment.

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Non-Linguistic Sound

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Podcast: Woody Norris: Inventing the next amazing thing: Directional Sound
The talk is primarily focussed on demonstrating his new invention 'hypersonic sound'. It is essentially a way to precisely focus sound, or as the inventor puts it "put sound where you want to." This has obvious implications for 3D sound effects in virtual reality and channeled sound cones in augmented reality.

Echo vision: The man who sees with sound
The story of Daniel Kish, a man whose senses are out of balance; a man who sees with sound.

Hearing with more than Just Ears

It might well be that current experiments with binaural sound for VR 3D recreation of sounds based on the relative positions of the ears, and the head shape of the listener, are not quite getting the full picture of sound reception. It seems facial skin also has a part to play.

Sound in the Brain: An Orderly Orchestra of Synapses
Unlike the mapping of the sense of smell, which has odourant maps all over the olfactory bulb in no particular order, the sense of sound is remarkably well ordered. Synapses line up in an overlapping orchestra, with multiple redundancies, a study has found.

A Silent World
The value of sound is ofter overlooked when designing a virtual world, who, for all the prolieration of speaker systems, all too often concentrate on visual only - especially the non gameworlds.

Why Recoil at Unpleasant Noise Occurs
Nails on a blackboard. It is an unbearable noise, one that sends shivers through anyone who hears it. But why does it do this, and more importantly, how can a virtual environment replicate the effect in any sound?

New Implant Promises Prosthetic Near-Natural Hearing
We finally understand enough about the way sound signals are processed into electrical signals, to go one better than the cochlea implant. We can tap directly into the auditory nerve itself.

Haptics via Ultrasound
All manner of approaches are being fielded these days to try and create a workable haptic interface, that allows the true feeling of touch to an object that is only virtually there. One of the more esoteric, is the use of sound to shape the pressure fields in the air. Specifically, the use of ultrasound.

Multiple Sensory Modalities Proven to Reinforce Each Other
Usually when we think of sensory input channels - sight, sound, touch, taste, smell, balance - we think of the traditional hierarchical order, under the brain. It seems that that hierarchy is not as cut and dried as we once thought, with interesting implications for virtual worlds.

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