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Joined 2026-09-21 Message
Incoming links: Sensory substitution
Ella Striem-Amit Created 2026-10-24 Updated 2026-11-05
A researcher who coauthored trained visual-to-auditory sensory substitution experiments in blind participants. Performance on an orientation task measured access to spatial information through sound, rather than restoration of ordinary vision.[ref]
Visual acuity of the congenitally blind using visual-to-auditory sensory substitution by Ella Striem-Amit and others. study design and results; author roster
Paul Bach-y-Rita Created 2026-10-24 Updated 2026-11-05
A researcher who coauthored an early tactile-image projection system for sensory substitution. Mapping visual information into touch tested whether useful spatial judgments can be supported through a different input channel.[ref]
Vision Substitution by Tactile Image Projection by Paul Bach-y-Rita and others. study design and results; author roster
Peter B. L. Meijer Created 2026-10-24 Updated 2026-11-05
Peter B. L. Meijer is a researcher whose work includes image-to-sound sensory substitution. His 1992 engineering paper described how a grayscale image could be encoded as a time-varying sound pattern.[ref]
The design scans image columns from left to right. Horizontal position becomes time within a scan, vertical position selects an audio frequency, and brightness sets an oscillator's amplitude. For example, a bright point high on the right produces a relatively high-frequency component late in the scan. Different rows contribute superposed tones. This provides an explicit encoding whose mathematical information content can be studied separately from how well a listener learns to interpret it.[ref]
An experimental system for auditory image representations by Peter B. L. Meijer. Image-to-Sound Mapping, figure 1 and finite-duration discussion