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Paths can be to any destination with information being presented with real human voice.
Recording paths is a simple matter of walking the route with the equipment set to record including voice annotations for start and finish. David left the university late 1997, since then PAL has had no specific funding and relied on benevolent support from the university. Trials Recent trials were held with four visually impaired people taking part. Their given objective was to try following pre-recorded routes to find the six destinations. They all found all six destinations with relative ease.