Author

Junjie Li

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Preprint Aug 2026

FireRedTTS3: Unified Speech Generation and Editing with Semantically Enriched Speech Representations

A frozen Audio Encoder trained on diverse speech understanding tasks as a semantic teacher to regularize the audio feature space and improves text-speech alignment and stabilizes autoregressive generation while keeping the overall system simple.

Fei-Yu Shen, Kun Xie, Yi-Chen Wu et al. · 7 citations · ⚡1

Preprint Aug 2026

MetaVideoAgent: Automated Video-Agent Evolution for Long-Form Video Understanding

Long-form video understanding requires locating sparse, question-relevant evidence in long, multimodal videos. Real-world video distributions differ in modality-specific information density, content structure, and evidence patterns, causing fixed video-agent designs to incur redundant processing or fail when mismatched...

Ben-Lei Cui, Ruize Wang, Junjie Li et al. · 1 citation

Preprint Aug 2026

FireRedAudio: A General-Purpose Audio Language Model with Decoupled Continuous Representations for Understanding and Generation

FireRedAudio is introduced, a general-purpose audio language model with a shared 9B-parameter LLM that achieves competitive or leading performance in audio understanding and multilingual ASR, strong content accuracy and speaker preservation in zero-shot TTS, leading instruction following in Instruct TTS, and substantia...

Fei-Yu Shen, Fenglong Xie, Junjie Li et al. · 3 citations · ⚡1