15. A system comprising: a processor; and memory storing instructions that, when executed by the processor, cause the processor to: receive audiovisual input comprising audio input and video input associated with a subject; extract visual features from the video input; apply a scattering operation to the extracted visual features to generate a vector of scattering coefficients in a first dimensional space; provide the vector of scattering coefficients as input to a first neural network for visual processing; generate, using the first neural network, a first prediction regarding a speech status of the subject based on the vector of scattering coefficients; normalize the audio input to generate normalized audio input; combine the vector of scattering coefficients with the normalized audio input to generate a fused audiovisual feature vector; provide the fused audiovisual feature vector to a second neural network for audiovisual processing; and generate, using the second neural network, a second prediction regarding the speech status of the subject based on a second output of the second neural network.
15. A system comprising: a processor; and memory storing instructions that, when executed by the processor, cause the processor to: receive audiovisual input comprising audio input and video input associated with a subject; extract visual features from the video input; apply a scattering operation to the extracted visual features to generate a vector of scattering coefficients in a first dimensional space; provide the vector of scattering coefficients as input to a first neural network for visual processing; generate, using the first neural network, a first prediction regarding a speech status of the subject based on the vector of scattering coefficients; normalize the audio input to generate normalized audio input; combine the vector of scattering coefficients with the normalized audio input to generate a fused audiovisual feature vector; provide the fused audiovisual feature vector to a second neural network for audiovisual processing; and generate, using the second neural network, a second prediction regarding the speech status of the subject based on a second output of the second neural network. 19. The system of claim 15 , wherein the instructions, when executed by the processor, cause the processor to apply the scattering operation to the extracted visual features to generate a vector of visual scattering features in a first dimensional space by causing the processor to: apply the scattering operation to the extracted visual features to generate a second scattering vector in a second dimensional space; and project the second scattering vector into the first dimensional space to generate the vector of visual scattering features in the first dimensional space, wherein the second dimensional space is of a higher dimensionality than the first dimensional space.