Paper ID | SPE-58.6 | ||
Paper Title | AUTOMATIC DYSARTHRIC SPEECH DETECTION EXPLOITING PAIRWISE DISTANCE-BASED CONVOLUTIONAL NEURAL NETWORKS | ||
Authors | Parvaneh Janbakhshi, Ina Kodrasi, Hervé Bourlard, Idiap Research Institute, Switzerland | ||
Session | SPE-58: Dysarthric Speech Processing | ||
Location | Gather.Town | ||
Session Time: | Friday, 11 June, 14:00 - 14:45 | ||
Presentation Time: | Friday, 11 June, 14:00 - 14:45 | ||
Presentation | Poster | ||
Topic | Speech Processing: [SPE-ANLS] Speech Analysis | ||
IEEE Xplore Open Preview | Click here to view in IEEE Xplore | ||
Abstract | Automatic dysarthric speech detection can provide reliable and cost-effective computer-aided tools to assist the clinical diagnosis and management of dysarthria. In this paper we propose a novel automatic dysarthric speech detection approach based on analyses of pairwise distance matrices using convolutional neural networks (CNNs). We represent utterances through articulatory posteriors and consider pairs of phonetically-balanced representations, with one representation from a healthy speaker (i.e., the reference representation) and the other representation from the test speaker (i.e., test representation). Given such pairs of reference and test representations, features are first extracted using a feature extraction front-end, a frame-level distance matrix is computed, and the obtained distance matrix is considered as an image by a CNN-based binary classifier. The feature extraction, distance matrix computation, and CNN-based classifier are jointly optimized in an end-to-end framework. Experimental results on two databases of healthy and dysarthric speakers for different languages and pathologies show that the proposed approach yields a high dysarthric speech detection performance, outperforming other CNN-based baseline approaches. |