Deep Sensory Substitution: Noninvasively Enabling Biological Neural Networks to Receive Input from Artificial Neural Networks

• URL: http://arxiv.org/abs/2005.13291v3
• Date: Wed, 25 Aug 2021 23:20:52 GMT
• Title: Deep Sensory Substitution: Noninvasively Enabling Biological Neural Networks to Receive Input from Artificial Neural Networks
• Authors: Andrew Port, Chelhwon Kim, Mitesh Patel
• Abstract summary: This work describes a novel technique for leveraging machine-learned feature embeddings to sonify visual information into a perceptual audio domain. A generative adversarial network (GAN) is then used to find a distance preserving map from this metric space of feature vectors into the metric space defined by a target audio dataset. In human subject tests, users were able to accurately classify audio sonifications of faces.
• Score: 5.478764356647437
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: As is expressed in the adage "a picture is worth a thousand words", when using spoken language to communicate visual information, brevity can be a challenge. This work describes a novel technique for leveraging machine-learned feature embeddings to sonify visual (and other types of) information into a perceptual audio domain, allowing users to perceive this information using only their aural faculty. The system uses a pretrained image embedding network to extract visual features and embed them in a compact subset of Euclidean space -- this converts the images into feature vectors whose $L^2$ distances can be used as a meaningful measure of similarity. A generative adversarial network (GAN) is then used to find a distance preserving map from this metric space of feature vectors into the metric space defined by a target audio dataset equipped with either the Euclidean metric or a mel-frequency cepstrum-based psychoacoustic distance metric. We demonstrate this technique by sonifying images of faces into human speech-like audio. For both target audio metrics, the GAN successfully found a metric preserving mapping, and in human subject tests, users were able to accurately classify audio sonifications of faces.

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