Author

Yu-Tao Sun

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Dec 2025

StellarTTS: Sparse Temporal Embedding for Low-Latency and Robust Speech Synthesis

StellarTTS is introduced, a novel mobile-optimized NAR TTS framework based on a sparse temporal embedding strategy, enabling granular control of phoneme duration, pronunciation, and prosody and a semantic-aware codec that facilitates efficient single-stage decoding.

Kaicheng Luo, Xuefei Gong, Yu-Tao Sun et al. · Automatic Speech Recognition... · 0 citations

Preprint Jul 2026

From Passive Retrieval to Active Memory Navigation: Learning to Use Memory as a Structured Action Space

NapMem is introduced, a framework for learning to use long-term user memory as a structured action space rather than passively retrieved context, and suggests that long-term user memory benefits from coupling structured storage with a learned policy for using memory at the appropriate granularity.

Yue Xu, Yutao Sun, Yihao Liu et al. · 3 citations