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Unsupervised Audiovisual Synthesis via Exemplar Autoencoders

Kangle Deng · Aayush Bansal · Deva Ramanan

Keywords: [ voice conversion ] [ audiovisual synthesis ] [ assistive technology ] [ speech-impaired ] [ autoencoders ] [ unsupervised learning ]


We present an unsupervised approach that converts the input speech of any individual into audiovisual streams of potentially-infinitely many output speakers. Our approach builds on simple autoencoders that project out-of-sample data onto the distribution of the training set. We use exemplar autoencoders to learn the voice, stylistic prosody, and visual appearance of a specific target exemplar speech. In contrast to existing methods, the proposed approach can be easily extended to an arbitrarily large number of speakers and styles using only 3 minutes of target audio-video data, without requiring any training data for the input speaker. To do so, we learn audiovisual bottleneck representations that capture the structured linguistic content of speech. We outperform prior approaches on both audio and video synthesis.

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