ICA and whitening preprocessing before k-means improves DSU-based ASR for XLS-R-300M, and ICA axes show interpretable phonetic contrasts.
SUPERB-SG: Enhanced speech processing universal performance benchmark for semantic and genera- tive capabilities,
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Discrete Speech Unit Extraction via Independent Component Analysis
ICA and whitening preprocessing before k-means improves DSU-based ASR for XLS-R-300M, and ICA axes show interpretable phonetic contrasts.