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Speech production is a complex sequential process which involve the coordination of various articulatory features. Among them tongue being a highly versatile active articulator responsible for shaping airflow to produce targeted speech…

Sound · Computer Science 2025-04-28 Leena G Pillai , D. Muhammad Noorul Mubarak , Elizabeth Sherly

Text-to-speech (TTS) synthesis is the process of producing synthesized speech from text or phoneme input. Traditional TTS models contain multiple processing steps and require external aligners, which provide attention alignments of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-08 Hyunseung Chung , Sang-Hoon Lee , Seong-Whan Lee

Token-based text-to-speech (TTS) models have emerged as a promising avenue for generating natural and realistic speech, yet they grapple with low pronunciation accuracy, speaking style and timbre inconsistency, and a substantial need for…

Sound · Computer Science 2024-03-12 Chunhui Wang , Chang Zeng , Bowen Zhang , Ziyang Ma , Yefan Zhu , Zifeng Cai , Jian Zhao , Zhonglin Jiang , Yong Chen

Non-autoregressive generation (NAG) has recently attracted great attention due to its fast inference speed. However, the generation quality of existing NAG models still lags behind their autoregressive counterparts. In this work, we show…

Computation and Language · Computer Science 2021-02-17 Yixuan Su , Deng Cai , Yan Wang , David Vandyke , Simon Baker , Piji Li , Nigel Collier

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

The traditional vocoders have the advantages of high synthesis efficiency, strong interpretability, and speech editability, while the neural vocoders have the advantage of high synthesis quality. To combine the advantages of two vocoders,…

Sound · Computer Science 2022-03-08 Tao Wang , Ruibo Fu , Jiangyan Yi , Jianhua Tao , Zhengqi Wen

Recent research shows end-to-end ASR systems can recognize overlapped speech from multiple speakers. However, all published works have assumed no latency constraints during inference, which does not hold for most voice assistant…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-22 Ilya Sklyar , Anna Piunova , Yulan Liu

Accented text-to-speech (TTS) synthesis seeks to generate speech with an accent (L2) as a variant of the standard version (L1). How to control the intensity of accent in the process of TTS is a very interesting research direction, and has…

Sound · Computer Science 2022-10-28 Rui Liu , Haolin Zuo , De Hu , Guanglai Gao , Haizhou Li

Current Text-to-audio (TTA) models mainly use coarse text descriptions as inputs to generate audio, which hinders models from generating audio with fine-grained control of content and style. Some studies try to improve the granularity by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-01 Yuanyuan Wang , Hangting Chen , Dongchao Yang , Zhiyong Wu , Xixin Wu

Current non-autoregressive (NAR) text-to-speech (TTS) systems still struggle to model diverse and speaker-dependent duration variation. We further observe that richer duration variation can increase the synthesis difficulty of existing…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-29 Qingliang Meng , Yuqing Deng , Wei Liang , Limei Yu , Huizhi Liang , Tian Li

Text-to-speech (TTS) acoustic models map linguistic features into an acoustic representation out of which an audible waveform is generated. The latest and most natural TTS systems build a direct mapping between linguistic and waveform…

Sound · Computer Science 2019-09-24 David Álvarez , Santiago Pascual , Antonio Bonafonte

While Transformers have achieved promising results in end-to-end (E2E) automatic speech recognition (ASR), their autoregressive (AR) structure becomes a bottleneck for speeding up the decoding process. For real-world deployment, ASR systems…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-27 Keqi Deng , Zehui Yang , Shinji Watanabe , Yosuke Higuchi , Gaofeng Cheng , Pengyuan Zhang

Text-to-speech (TTS) synthesis has seen renewed progress under the discrete modeling paradigm. Existing autoregressive approaches often rely on single-codebook representations, which suffer from significant information loss. Even with…

While recent neural text-to-speech (TTS) systems perform remarkably well, they typically require a substantial amount of recordings from the target speaker reading in the desired speaking style. In this work, we present a novel 3-step…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-03 Goeric Huybrechts , Thomas Merritt , Giulia Comini , Bartek Perz , Raahil Shah , Jaime Lorenzo-Trueba

While prompt-based text-to-speech (TTS) models enable natural language-driven speaking style control, they often provide limited fine-grained control and apply a single global style across an utterance. This restricts practical use cases…

Computation and Language · Computer Science 2026-05-28 Jaehoon Kang , Yejin Lee , Yoonji Park , Kyuhong Shim

With the advancement of speech synthesis technology, users have higher expectations for the naturalness and expressiveness of synthesized speech. But previous research ignores the importance of prompt selection. This study proposes a…

Sound · Computer Science 2025-04-15 Dan Luo , Chengyuan Ma , Weiqin Li , Jun Wang , Wei Chen , Zhiyong Wu

End-to-end text-to-speech (TTS) synthesis is a method that directly converts input text to output acoustic features using a single network. A recent advance of end-to-end TTS is due to a key technique called attention mechanisms, and all…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-02 Yusuke Yasuda , Xin Wang , Junichi Yamagishi

In this paper, we investigate the semi-supervised joint training of text to speech (TTS) and automatic speech recognition (ASR), where a small amount of paired data and a large amount of unpaired text data are available. Conventional…

Sound · Computer Science 2022-07-12 Naoki Makishima , Satoshi Suzuki , Atsushi Ando , Ryo Masumura

Spontaneous speech has many affective and pragmatic functions that are interesting and challenging to model in TTS. However, the presence of reduced articulation, fillers, repetitions, and other disfluencies in spontaneous speech make the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-02 Harm Lameris , Shivam Mehta , Gustav Eje Henter , Joakim Gustafson , Éva Székely

Audio-visual speech separation methods aim to integrate different modalities to generate high-quality separated speech, thereby enhancing the performance of downstream tasks such as speech recognition. Most existing state-of-the-art (SOTA)…

Sound · Computer Science 2024-03-22 Samuel Pegg , Kai Li , Xiaolin Hu