Author

Lei Xie

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Preprint Oct 2026

MSVAE: Rethinking Musical Semantics in Continuous Latent Spaces

Continuous latent representations underlie recent diffusion-based lyrics-to-song and text-to-music systems, yet aligning lyric conditions with these latents remains difficult: existing systems resort to generator-side machinery such as sentence-level timestamps, auxiliary alignment objectives, or semi-autoregressive de...

Guo-Bin Ma, Yue-Peng Jiang, Da-Ke Guo et al. · 0 citations

Preprint Sep 2026

StreamTN: A Low-Latency Streaming Chinese Text Normalization Model for Streaming TTS in Dialogue Systems

Text-to-Speech (TTS) is an essential module that provides spoken responses in a spoken dialogue system (SDS) centered on a large language model (LLM). To ensure accurate TTS synthesis, responses generated by an LLM must be converted into TTS-readable formats via a Text Normalization (TN) module, imposing strict low-lat...

Wen-Hao Li, Jin-Rui Liang, Hao-Yu Zhang et al. · 0 citations

Preprint Sep 2026

Rethinking Music Tokenization: A Semantic Codec toward High-Fidelity LLM Music Generation

Discrete audio tokenization has become the critical interface between raw waveforms and autoregressive modeling in recent music generation. As a result, music tokenizers must simultaneously support high-fidelity reconstruction and produce discrete sequences that remain amenable to language modeling. Existing reconstruc...

Hua-Kang Chen, Guo-Bin Ma, Yue-Peng Jiang et al. · 0 citations

Preprint Sep 2026

SphereVAE: Hyperspherical Latent Autoencoders for Robust Autoregressive Speech Representation Modeling

SphereVAE is proposed, which constrains the VAE latent space to the unit hypersphere and regularizes the latent distribution toward a uniform prior, so that information is encoded mainly by directional variation, providing a bounded geometric target for autoregressive prediction and reducing the risk of norm drift.

Hao-Yu Zhang, Jing-Bin Hu, Han-Ke Xie et al. · 0 citations

Preprint Sep 2026

X-Pred MeanFlow for Streaming Token-to-Mel Speech Decoding

X-Pred MeanFlow is proposed, a few-step streaming token-to-mel decoder that reparameterizes MeanFlow with mel-space prediction and introduces layer-selective block-wise attention to enable continuous chunk-wise generation with bounded context.

Han-Ke Xie, Xia-Ming Ren, Qi-Rui Zhan et al. · 0 citations

Preprint Aug 2026

SemBridge: Semantic Token Anchoring for Continuous-Latent Autoregressive Speech Generation

SemBridge is proposed, a training-only semantic-token anchoring framework for continuous-latent autoregressive speech generation and demonstrates that explicit semantic-token supervision for autoregressive state learning is an effective and general direction for continuous speech generation.

Han-Ke Xie, Haopeng Lin, J. Qian et al. · 0 citations