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State-of-the-art neural machine translation models generate a translation from left to right and every step is conditioned on the previously generated tokens. The sequential nature of this generation process causes fundamental latency in…

Computation and Language · Computer Science 2020-07-01 Jungo Kasai , James Cross , Marjan Ghazvininejad , Jiatao Gu

Neural end-to-end TTS can generate very high-quality synthesized speech, and even close to human recording within similar domain text. However, it performs unsatisfactory when scaling it to challenging test sets. One concern is that the…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-23 Yibin Zheng , Xi Wang , Lei He , Shifeng Pan , Frank K. Soong , Zhengqi Wen , Jianhua Tao

Spoken dialogue is an intuitive form of human-computer interaction, yet current speech language models often remain constrained to turn-based exchanges, lacking real-time adaptability such as user barge-in. We propose a novel duplex speech…

Computation and Language · Computer Science 2025-07-28 Ke Hu , Ehsan Hosseini-Asl , Chen Chen , Edresson Casanova , Subhankar Ghosh , Piotr Żelasko , Zhehuai Chen , Jason Li , Jagadeesh Balam , Boris Ginsburg

Sequence-to-sequence vision-language models are showing promise, but their applicability is limited by their inference latency due to their autoregressive way of generating predictions. We propose a parallel decoding sequence-to-sequence…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Kunyu Shi , Qi Dong , Luis Goncalves , Zhuowen Tu , Stefano Soatto

Current text-to-speech (TTS) models face a persistent limitation: autoregressive (AR) models suffer from low generation efficiency, while modern non-autoregressive (NAR) models experience high latency due to their unordered temporal nature.…

Sound · Computer Science 2026-03-17 Zhengyan Sheng , Zhihao Du , Shiliang Zhang , Zhijie Yan , Liping Chen

Modern language models generate chain-of-thought traces by autoregressively sampling tokens from a finite vocabulary. While this discrete sampling has achieved remarkable success, conducting chain-of-thought with continuously-valued tokens…

Machine Learning · Computer Science 2026-03-06 Halil Alperen Gozeten , M. Emrullah Ildiz , Xuechen Zhang , Hrayr Harutyunyan , Ankit Singh Rawat , Samet Oymak

This paper presents an end-to-end text-to-speech system with low latency on a CPU, suitable for real-time applications. The system is composed of an autoregressive attention-based sequence-to-sequence acoustic model and the LPCNet vocoder…

Significant progress has been made in speaker dependent Lip-to-Speech synthesis, which aims to generate speech from silent videos of talking faces. Current state-of-the-art approaches primarily employ non-autoregressive sequence-to-sequence…

Sound · Computer Science 2023-07-06 Neha Sahipjohn , Neil Shah , Vishal Tambrahalli , Vineet Gandhi

Tacotron-based end-to-end speech synthesis has shown remarkable voice quality. However, the rendering of prosody in the synthesized speech remains to be improved, especially for long sentences, where prosodic phrasing errors can occur…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-09 Rui Liu , Berrak Sisman , Feilong Bao , Guanglai Gao , Haizhou Li

This paper presents a novel latent variable recurrent neural network architecture for jointly modeling sequences of words and (possibly latent) discourse relations between adjacent sentences. A recurrent neural network generates individual…

Computation and Language · Computer Science 2016-04-06 Yangfeng Ji , Gholamreza Haffari , Jacob Eisenstein

Task-oriented dialogue focuses on conversational agents that participate in user-initiated dialogues on domain-specific topics. In contrast to chatbots, which simply seek to sustain open-ended meaningful discourse, existing task-oriented…

Computation and Language · Computer Science 2017-08-16 Mihail Eric , Christopher D. Manning

Autoregressive decoding is the only part of sequence-to-sequence models that prevents them from massive parallelization at inference time. Non-autoregressive models enable the decoder to generate all output symbols independently in…

Computation and Language · Computer Science 2018-11-13 Jindřich Libovický , Jindřich Helcl

Pretrained language models based on the transformer architecture have shown great success in NLP. Textual training data often comes from the web and is thus tagged with time-specific information, but most language models ignore this…

Computation and Language · Computer Science 2022-05-05 Guy D. Rosin , Kira Radinsky

Most previous neural text-to-speech (TTS) methods are mainly based on supervised learning methods, which means they depend on a large training dataset and hard to achieve comparable performance under low-resource conditions. To address this…

Sound · Computer Science 2022-10-27 Xulong Zhang , Jianzong Wang , Ning Cheng , Jing Xiao

This paper presents a method for end-to-end cross-lingual text-to-speech (TTS) which aims to preserve the target language's pronunciation regardless of the original speaker's language. The model used is based on a non-attentive Tacotron…

Although neural text-to-speech (TTS) models have attracted a lot of attention and succeeded in generating human-like speech, there is still room for improvements to its naturalness and architectural efficiency. In this work, we propose a…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-06 Myeonghun Jeong , Hyeongju Kim , Sung Jun Cheon , Byoung Jin Choi , Nam Soo Kim

A Prompt-based Text-To-Speech model allows a user to control different aspects of speech, such as speaking rate and perceived gender, through natural language instruction. Although user-friendly, such approaches are on one hand constrained:…

Computation and Language · Computer Science 2025-07-14 Atli Sigurgeirsson , Simon King

This paper introduces a novel Token-and-Duration Transducer (TDT) architecture for sequence-to-sequence tasks. TDT extends conventional RNN-Transducer architectures by jointly predicting both a token and its duration, i.e. the number of…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-31 Hainan Xu , Fei Jia , Somshubra Majumdar , He Huang , Shinji Watanabe , Boris Ginsburg

Attention-based encoder-decoder, e.g. transformer and its variants, generates the output sequence in an autoregressive (AR) manner. Despite its superior performance, AR model is computationally inefficient as its generation requires as many…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-27 Keyu An , Zerui Li , Zhifu Gao , Shiliang Zhang

An end-to-end (e2e) text-to-speech (TTS) system is a deep architecture that learns to associate a text string with acoustic speech patterns from a curated dataset. It is expected that all aspects associated with speech production, such as…

Sound · Computer Science 2026-02-17 Parth Khadse , Sunil Kumar Kopparapu