“…Audio-visual learning: similar to its applications in natural language processing (NLP) and visual questing & answering systems [Hannan et al 2020;Kim et al 2020Kim et al , 2016, multi-modal learning using both audio-visual sensory inputs has also been used for classification tasks [Sterling et al 2018;Wilson et al 2019], audio-visual zooming [Nair et al 2019, and sound source separation [Ephrat et al 2018;Lee and Seung 2000] which have also isolated waves for specific generation tasks. Although similar in spirit, our audio-visual method, "Echoreconstruction, " differs from the existing methods by learning absorption and reflectance properties to detect a reflective surface, its depth, and material.…”