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Denoising diffusion probabilistic models (DDPMs) are expressive generative models that have been used to solve a variety of speech synthesis problems. However, because of their high sampling costs, DDPMs are difficult to use in real-time…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-31 Songxiang Liu , Dan Su , Dong Yu

Text-to-speech (TTS) methods have shown promising results in voice cloning, but they require a large number of labeled text-speech pairs. Minimally-supervised speech synthesis decouples TTS by combining two types of discrete speech…

Sound · Computer Science 2023-12-19 Chunyu Qiang , Hao Li , Yixin Tian , Yi Zhao , Ying Zhang , Longbiao Wang , Jianwu Dang

Diffusion models have demonstrated significant potential in speech synthesis tasks, including text-to-speech (TTS) and voice cloning. However, their iterative denoising processes are computationally intensive, and previous distillation…

Audio and Speech Processing · Electrical Eng. & Systems 2025-02-21 Yingahao Aaron Li , Rithesh Kumar , Zeyu Jin

We present SoundLoCD, a novel text-to-sound generation framework, which incorporates a LoRA-based conditional discrete contrastive latent diffusion model. Unlike recent large-scale sound generation models, our model can be efficiently…

Sound · Computer Science 2024-05-27 Xinlei Niu , Jing Zhang , Christian Walder , Charles Patrick Martin

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

Latent diffusion models offer an attractive alternative to discrete diffusion for non-autoregressive text generation by operating on continuous text representations and denoising entire sequences in parallel. The major challenge in latent…

Computation and Language · Computer Science 2026-05-11 Viacheslav Meshchaninov , Alexander Shabalin , Egor Chimbulatov , Nikita Gushchin , Ilya Koziev , Alexander Korotin , Dmitry Vetrov

Conversational speech synthesis (CSS) aims to synthesize both contextually appropriate and expressive speech, and considerable efforts have been made to enhance the understanding of conversational context. However, existing CSS systems are…

Sound · Computer Science 2025-02-28 Weihao wu , Zhiwei Lin , Yixuan Zhou , Jingbei Li , Rui Niu , Qinghua Wu , Songjun Cao , Long Ma , Zhiyong Wu

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

The diffusion model is capable of generating high-quality data through a probabilistic approach. However, it suffers from the drawback of slow generation speed due to the requirement of a large number of time steps. To address this…

Sound · Computer Science 2024-04-30 Myeongjin Ko , Yong-Hoon Choi

Diffusion models are instrumental in text-to-audio (TTA) generation. Unfortunately, they suffer from slow inference due to an excessive number of queries to the underlying denoising network per generation. To address this bottleneck, we…

Sound · Computer Science 2024-06-25 Yatong Bai , Trung Dang , Dung Tran , Kazuhito Koishida , Somayeh Sojoudi

Unified architectures in multimodal large language models (MLLM) have shown promise in handling diverse tasks within a single framework. In the text-to-speech (TTS) task, current MLLM-based approaches rely on discrete token representations,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-27 Xinlu He , Swayambhu Nath Ray , Harish Mallidi , Jia-Hong Huang , Ashwin Bellur , Chander Chandak , M. Maruf , Venkatesh Ravichandran

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

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

Text-to-Speech (TTS) has recently seen great progress in synthesizing high-quality speech owing to the rapid development of parallel TTS systems, but producing speech with naturalistic prosodic variations, speaking styles and emotional…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-21 Yinghao Aaron Li , Cong Han , Nima Mesgarani

Language diffusion models aim to improve sampling speed and coherence over autoregressive LLMs. We introduce Neural Flow Diffusion Models for language generation, an extension of NFDM that enables the straightforward application of…

Computation and Language · Computer Science 2026-01-26 Nesta Midavaine , Christian A. Naesseth , Grigory Bartosh

This paper aims to build a multi-speaker expressive TTS system, synthesizing a target speaker's speech with multiple styles and emotions. To this end, we propose a novel contrastive learning-based TTS approach to transfer style and emotion…

Audio and Speech Processing · Electrical Eng. & Systems 2024-04-26 Xinfa Zhu , Yuke Li , Yi Lei , Ning Jiang , Guoqing Zhao , Lei Xie

We propose Guided-TTS, a high-quality text-to-speech (TTS) model that does not require any transcript of target speaker using classifier guidance. Guided-TTS combines an unconditional diffusion probabilistic model with a separately trained…

Sound · Computer Science 2022-06-13 Heeseung Kim , Sungwon Kim , Sungroh Yoon

Recently, denoising diffusion probabilistic models and generative score matching have shown high potential in modelling complex data distributions while stochastic calculus has provided a unified point of view on these techniques allowing…

Machine Learning · Computer Science 2021-08-06 Vadim Popov , Ivan Vovk , Vladimir Gogoryan , Tasnima Sadekova , Mikhail Kudinov

Parallel text-to-speech (TTS) models have recently enabled fast and highly-natural speech synthesis. However, they typically require external alignment models, which are not necessarily optimized for the decoder as they are not jointly…

Sound · Computer Science 2023-03-08 Bac Nguyen , Fabien Cardinaux , Stefan Uhlich

Generative models have been very popular in the recent years for their image generation capabilities. GAN-based models are highly regarded for their disentangled latent space, which is a key feature contributing to their success in…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Yusuf Dalva , Pinar Yanardag