2026
FROM HALLUCINATION TO ARTICULATION: LANGUAGE MODEL-DRIVEN LOSSES FOR ULTRA LOW-BITRATE NEURAL SPEECH CODING
ICASSP 2026poster
``Phoneme Hallucinations (PH)'' commonly occur in low-bitrate DNN-based codecs. It is the generative decoder's attempt to synthesize plausible outputs from excessively compressed tokens missing some semantic information. In this work, we propose language model-driven losses (LM loss) and show they m…