TY - CONF A1 - Georges, Munir A1 - Huang, Jonathan A1 - Bocklet, Tobias T1 - Compact Speaker Embedding: lrx-Vector T2 - Interspeech 2020 N2 - Deep neural networks (DNN) have recently been widely used in speaker recognition systems, achieving state-of-the-art performance on various benchmarks. The x-vector architecture is especially popular in this research community, due to its excellent performance and manageable computational complexity. In this paper, we present the lrx-vector system, which is the low-rank factorized version of the x-vector embedding network. The primary objective of this topology is to further reduce the memory requirement of the speaker recognition system. We discuss the deployment of knowledge distillation for training the lrx-vector system and compare against low-rank factorization with SVD. On the VOiCES 2019 far-field corpus we were able to reduce the weights by 28% compared to the full-rank x-vector system while keeping the recognition rate constant (1.83% EER). KW - speaker recognition KW - x-vector KW - low power Y1 - 2020 UR - https://opus4.kobv.de/opus4-ohm/frontdoor/index/index/docId/1854 SN - 2958-1796 SP - 3236 EP - 3240 PB - ISCA CY - ISCA ER -