COT-TTS: Audio Context-Aware Text-to-Speech with Chain-of-Thought Reasoning

arXiv:2609.22697 · cs.CL, cs.SD, eess.AS · Submitted 2026-09-19 · Read on arXiv

cs.CL, cs.SD, eess.AS

Submitted: 2026-09-19

Updated: 2026-09-25

Comments: 13 pages, 6 figures, 6 tables

Project page: https://luckybian.github.io/COT-TTS

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Consistency — 22× in this paper · explained in 3 episodes
• Benchmark — 21× in this paper · explained in 2 episodes
• Alignment — 6× in this paper · explained in 1 episode
• Accuracy — 4× in this paper · explained in 1 episode
• Embeddings — 3× in this paper · explained in 2 episodes
• Decode — 2× in this paper · explained in 2 episodes
• Fidelity — 2× in this paper · explained in 2 episodes
• Robustness — 2× in this paper · explained in 5 episodes
• Transformer — 2× in this paper · explained in 2 episodes
• Ablation — 1× in this paper · explained in 1 episode
• Ablation study — 1× in this paper · explained in 1 episode
• Actor — 1× in this paper · explained in 3 episodes
• Benchmarking — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes
• Cosine Similarity — 1× in this paper · explained in 3 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Foundation Model — 1× in this paper · explained in 3 episodes
• Foundation Models — 1× in this paper · explained in 7 episodes
• Heterogeneous Graph — 1× in this paper · explained in 2 episodes
• LLM judge — 1× in this paper · explained in 2 episodes
• Latent Space — 1× in this paper · explained in 7 episodes
• Reinforcement Learning — 1× in this paper · explained in 4 episodes
• Semantic Understanding — 1× in this paper · explained in 2 episodes
• Temporal consistency — 1× in this paper · explained in 2 episodes
• Transfer Learning — 1× in this paper · explained in 10 episodes

Sources

• Fish Audio S2 Technical Report
• VoxCPM: Tokenizer-Free TTS for Context-Aware Speech Generation and True-to-Life Voice Cloning
• Borderless Long Speech Synthesis
• SoulX-Podcast: Towards Realistic Long-form Podcasts with Dialectal and Paralinguistic Diversity
• ActorMind: Emulating Human Actor Reasoning for Speech Role-Playing
• Audio-Reasoner: Improving Reasoning Capability in Large Audio Language Models
• VoxCPM2 Technical Report
• VoiceSculptor: Your Voice, Designed By You
• DuplexCascade: Full-Duplex Speech-to-Speech Dialogue with VAD-Free Cascaded ASR-LLM-TTS Pipeline and Micro-Turn Optimization
• FunAudioLLM: Voice Understanding and Generation Foundation Models for Natural Interaction Between Humans and LLMs
• CapTalk: Unified Voice Design for Single-Utterance and Dialogue Speech Generation
• Harness TTS: Towards Context-Aware Expressive Speech Synthesis with Harness Layer
• Qwen-Music Technical Report
• Beyond Semantic Dominance: Cognitive Affective Reasoning and Empathetic Response Alignment in Audio Language Models
• OSUM-EChat: Enhancing End-to-End Empathetic Spoken Chatbot via Understanding-Driven Spoken Dialogue
• DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning
• OV-MER: Towards Open-Vocabulary Multimodal Emotion Recognition
• Kimi-Audio Technical Report
• BUT System Description to VoxCeleb Speaker Recognition Challenge 2019
• Qwen3-ASR Technical Report

Related papers

• Exploring Solution Divergence and Its Effect on Large Language Model Problem Solving
• Ishigaki-IDS-Bench: A Benchmark for Generating Information Delivery Specification from BIM Information Requirements
• Subliminal Steering: Stronger Encoding of Hidden Signals
• MedStruct-S: A Benchmark for Key Discovery, Key-Conditioned QA and Semi-Structured Extraction from OCR Clinical Reports
• The End of Transformers? On Challenging Attention and the Rise of Sub-Quadratic Architectures
• Untangling the Mechanisms of Misleading Context in Medical Question Answering