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Having a sequence-to-sequence model which can operate in an online fashion is important for streaming applications such as Voice Search. Neural transducer is a streaming sequence-to-sequence model, but has shown a significant degradation in…

计算与语言 · 计算机科学 2017-12-06 Tara N. Sainath , Chung-Cheng Chiu , Rohit Prabhavalkar , Anjuli Kannan , Yonghui Wu , Patrick Nguyen , Zhifeng Chen

Although end-to-end neural text-to-speech (TTS) methods (such as Tacotron2) are proposed and achieve state-of-the-art performance, they still suffer from two problems: 1) low efficiency during training and inference; 2) hard to model long…

计算与语言 · 计算机科学 2019-01-31 Naihan Li , Shujie Liu , Yanqing Liu , Sheng Zhao , Ming Liu , Ming Zhou

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…

声音 · 计算机科学 2025-04-14 Haowei Lou , Hye-young Paik , Sheng Li , Wen Hu , Lina Yao

End-to-end neural TTS has achieved superior performance on reading style speech synthesis. However, it's still a challenge to build a high-quality conversational TTS due to the limitations of the corpus and modeling capability. This study…

声音 · 计算机科学 2020-11-17 Haohan Guo , Shaofei Zhang , Frank K. Soong , Lei He , Lei Xie

We present a meta-learning approach for adaptive text-to-speech (TTS) with few data. During training, we learn a multi-speaker model using a shared conditional WaveNet core and independent learned embeddings for each speaker. The aim of…

We propose a first streaming accent conversion (AC) model that transforms non-native speech into a native-like accent while preserving speaker identity, prosody and improving pronunciation. Our approach enables stream processing by…

计算与语言 · 计算机科学 2025-06-23 Tuan-Nam Nguyen , Ngoc-Quan Pham , Seymanur Akti , Alexander Waibel

Modern text-to-speech (TTS) systems are able to generate audio that sounds almost as natural as human speech. However, the bar of developing high-quality TTS systems remains high since a sizable set of studio-quality <text, audio> pairs is…

计算与语言 · 计算机科学 2019-06-19 Wei Fang , Yu-An Chung , James Glass

Transformers have been the dominant architecture for Speech Translation in recent years, achieving significant improvements in translation quality. Since speech signals are longer than their textual counterparts, and due to the quadratic…

计算与语言 · 计算机科学 2023-03-15 Ioannis Tsiamas , Gerard I. Gállego , José A. R. Fonollosa , Marta R. Costa-jussà

We present a method for introducing a text encoder into pre-trained end-to-end speech translation systems. It enhances the ability of adapting one modality (i.e., source-language speech) to another (i.e., source-language text). Thus, the…

音频与语音处理 · 电气工程与系统科学 2022-12-06 Yuhao Zhang , Chen Xu , Bojie Hu , Chunliang Zhang , Tong Xiao , Jingbo Zhu

We explore options to use Transformer networks in neural transducer for end-to-end speech recognition. Transformer networks use self-attention for sequence modeling and comes with advantages in parallel computation and capturing contexts.…

音频与语音处理 · 电气工程与系统科学 2019-10-30 Ching-Feng Yeh , Jay Mahadeokar , Kaustubh Kalgaonkar , Yongqiang Wang , Duc Le , Mahaveer Jain , Kjell Schubert , Christian Fuegen , Michael L. Seltzer

Text to speech (TTS) is widely used to synthesize personal voice for a target speaker, where a well-trained source TTS model is fine-tuned with few paired adaptation data (speech and its transcripts) on this target speaker. However, in many…

声音 · 计算机科学 2021-04-21 Yuzi Yan , Xu Tan , Bohan Li , Tao Qin , Sheng Zhao , Yuan Shen , Tie-Yan Liu

Transformer-based models have brought a radical change to neural machine translation. A key feature of the Transformer architecture is the so-called multi-head attention mechanism, which allows the model to focus simultaneously on different…

计算与语言 · 计算机科学 2020-10-06 Alessandro Raganato , Yves Scherrer , Jörg Tiedemann

Although Transformer has made breakthrough success in widespread domains especially in Natural Language Processing (NLP), applying it to time series forecasting is still a great challenge. In time series forecasting, the autoregressive…

机器学习 · 计算机科学 2021-06-01 Kai Chen , Guang Chen , Dan Xu , Lijun Zhang , Yuyao Huang , Alois Knoll

Transformer has achieved competitive performance against state-of-the-art end-to-end models in automatic speech recognition (ASR), and requires significantly less training time than RNN-based models. The original Transformer, with…

音频与语音处理 · 电气工程与系统科学 2020-08-14 Wenyong Huang , Wenchao Hu , Yu Ting Yeung , Xiao Chen

End-to-end neural TTS has shown improved performance in speech style transfer. However, the improvement is still limited by the available training data in both target styles and speakers. Additionally, degenerated performance is observed…

声音 · 计算机科学 2022-01-25 Xiaochun An , Frank K. Soong , Lei Xie

Generative models for dialog systems have gained much interest because of the recent success of RNN and Transformer based models in tasks like question answering and summarization. Although the task of dialog response generation is…

计算与语言 · 计算机科学 2021-05-11 Bishal Santra , Potnuru Anusha , Pawan Goyal

Non-autoregressive mechanisms can significantly decrease inference time for speech transformers, especially when the single step variant is applied. Previous work on CTC alignment-based single step non-autoregressive transformer (CASS-NAT)…

音频与语音处理 · 电气工程与系统科学 2021-07-23 Ruchao Fan , Wei Chu , Peng Chang , Jing Xiao , Abeer Alwan

Learning an effective speaker representation is crucial for achieving reliable performance in speaker verification tasks. Speech signals are high-dimensional, long, and variable-length sequences containing diverse information at each…

音频与语音处理 · 电气工程与系统科学 2023-08-25 Wei Xia , John H. L. Hansen

Although diffusion-based, non-autoregressive text-to-speech (TTS) systems have demonstrated impressive zero-shot synthesis capabilities, their efficacy is still hindered by two key challenges: the difficulty of text-speech alignment…

音频与语音处理 · 电气工程与系统科学 2026-02-06 Chunyat Wu , Jiajun Deng , Zhengxi Liu , Zheqi Dai , Haolin He , Qiuqiang Kong

Recent language model-based text-to-speech (TTS) frameworks demonstrate scalability and in-context learning capabilities. However, they suffer from robustness issues due to the accumulation of errors in speech unit predictions during…

音频与语音处理 · 电气工程与系统科学 2024-06-13 Kun Zhou , Shengkui Zhao , Yukun Ma , Chong Zhang , Hao Wang , Dianwen Ng , Chongjia Ni , Nguyen Trung Hieu , Jia Qi Yip , Bin Ma