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The immense scale of the recent large language models (LLM) allows many interesting properties, such as, instruction- and chain-of-thought-based fine-tuning, that has significantly improved zero- and few-shot performance in many natural…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-30 Deepanway Ghosal , Navonil Majumder , Ambuj Mehrish , Soujanya Poria

Large language model (LLM)-based text-to-speech (TTS) systems achieve remarkable naturalness via autoregressive (AR) decoding, but require N sequential steps to generate N speech tokens. We present LLaDA-TTS, which replaces the AR LLM with…

Sound · Computer Science 2026-03-30 Xiaoyu Fan , Huizhi Xie , Wei Zou , Yunzhang Chen

Text-to-Speech (TTS) models have advanced significantly, aiming to accurately replicate human speech's diversity, including unique speaker identities and linguistic nuances. Despite these advancements, achieving an optimal balance between…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-28 Jinhyeok Yang , Junhyeok Lee , Hyeong-Seok Choi , Seunghun Ji , Hyeongju Kim , Juheon Lee

In this work, we present DiffVoice, a novel text-to-speech model based on latent diffusion. We propose to first encode speech signals into a phoneme-rate latent representation with a variational autoencoder enhanced by adversarial training,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-25 Zhijun Liu , Yiwei Guo , Kai Yu

Scaling text-to-speech (TTS) to large-scale, multi-speaker, and in-the-wild datasets is important to capture the diversity in human speech such as speaker identities, prosodies, and styles (e.g., singing). Current large TTS systems usually…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-31 Kai Shen , Zeqian Ju , Xu Tan , Yanqing Liu , Yichong Leng , Lei He , Tao Qin , Sheng Zhao , Jiang Bian

Scaling Text-to-speech (TTS) to large-scale datasets has been demonstrated as an effective method for improving the diversity and naturalness of synthesized speech. At the high level, previous large-scale TTS models can be categorized into…

Scaling text-to-speech to a large and wild dataset has been proven to be highly effective in achieving timbre and speech style generalization, particularly in zero-shot TTS. However, previous works usually encode speech into latent using…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-07 Ziyue Jiang , Yi Ren , Zhenhui Ye , Jinglin Liu , Chen Zhang , Qian Yang , Shengpeng Ji , Rongjie Huang , Chunfeng Wang , Xiang Yin , Zejun Ma , Zhou Zhao

Recent advances in large language models (LLMs) have attracted significant interest in extending their capabilities to multimodal scenarios, particularly for speech-to-speech conversational systems. However, existing multimodal models…

Computation and Language · Computer Science 2026-03-26 Tianqiao Liu , Xueyi Li , Hao Wang , Haoxuan Li , Zhichao Chen , Weiqi Luo , Zitao Liu

Zero-shot Text-to-Speech (TTS) has recently advanced significantly, enabling models to synthesize speech from text using short, limited-context prompts. These prompts serve as voice exemplars, allowing the model to mimic speaker identity,…

Sound · Computer Science 2025-10-06 Hieu-Nghia Huynh-Nguyen , Huynh Nguyen Dang , Ngoc-Son Nguyen , Van Nguyen

This paper introduces F5-TTS, a fully non-autoregressive text-to-speech system based on flow matching with Diffusion Transformer (DiT). Without requiring complex designs such as duration model, text encoder, and phoneme alignment, the text…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-21 Yushen Chen , Zhikang Niu , Ziyang Ma , Keqi Deng , Chunhui Wang , Jian Zhao , Kai Yu , Xie Chen

Text-to-Speech (TTS) synthesis using deep learning relies on voice quality. Modern TTS models are advanced, but they need large amount of data. Given the growing computational complexity of these models and the scarcity of large,…

Sound · Computer Science 2023-10-10 Ze Liu

Recently, there has been a growing interest in text-to-speech (TTS) methods that can be trained with minimal supervision by combining two types of discrete speech representations and using two sequence-to-sequence tasks to decouple TTS.…

Sound · Computer Science 2023-12-19 Chunyu Qiang , Hao Li , Hao Ni , He Qu , Ruibo Fu , Tao Wang , Longbiao Wang , Jianwu Dang

This work introduces MELA-TTS, a novel joint transformer-diffusion framework for end-to-end text-to-speech synthesis. By autoregressively generating continuous mel-spectrogram frames from linguistic and speaker conditions, our architecture…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Keyu An , Zhiyu Zhang , Changfeng Gao , Yabin Li , Zhendong Peng , Haoxu Wang , Zhihao Du , Han Zhao , Zhifu Gao , Xiangang Li

Pre-trained stable diffusion models (SD) have shown great advances in visual correspondence. In this paper, we investigate the capabilities of Diffusion Transformers (DiTs) for accurate dense correspondence. Distinct from SD, DiTs exhibit a…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Chaofan Gan , Yuanpeng Tu , Xi Chen , Tieyuan Chen , Yuxi Li , Mehrtash Harandi , Weiyao Lin

Despite imperfect score-matching causing drift in training and sampling distributions of diffusion models, recent advances in diffusion-based acoustic models have revolutionized data-sufficient single-speaker Text-to-Speech (TTS)…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-01 Heyang Xue , Shuai Guo , Pengcheng Zhu , Mengxiao Bi

Diffusion and flow matching TTS faces a tension between discrete temporal structure and continuous spectral modeling. Two-stage models diffuse on fixed alignments, often collapsing to mean prosody; single-stage models avoid explicit…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-17 Jiabao Ai , Minghui Zhao , Anton Ragni

Text-to-Speech (TTS) models can generate natural, human-like speech across multiple languages by transforming phonemes into waveforms. However, multilingual TTS remains challenging due to discrepancies in phoneme vocabularies and variations…

Sound · Computer Science 2025-04-14 Haowei Lou , Hye-young Paik , Sheng Li , Wen Hu , Lina Yao

Text-to-speech synthesis (TTS) is a task to convert texts into speech. Two of the factors that have been driving TTS are the advancements of probabilistic models and latent representation learning. We propose a TTS method based on latent…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-19 Yusuke Yasuda , Tomoki Toda

We present a speaker conditioned text-to-speech (TTS) system aimed at addressing challenges in generating speech for unseen speakers and supporting diverse Indian languages. Our method leverages a diffusion-based TTS architecture, where a…

Diffusion Transformers (DiT) trained with flow matching in a VAE latent space have unified visual generation across images and videos. A natural next step toward a single architecture for both generation (visual synthesis) and understanding…

Computation and Language · Computer Science 2026-05-11 Jiaxiu Jiang , Jingjing Ren , Wenbo Li , Bo Wang , Haoze Sun , Yijun Yang , Jianhui Liu , Yanbing Zhang , Shenghe Zheng , Yuan Zhang , Haoyang Huang , Nan Duan , Wangmeng Zuo