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Recently, there has been an increasing interest in two-pass streaming end-to-end speech recognition (ASR) that incorporates a 2nd-pass rescoring model on top of the conventional 1st-pass streaming ASR model to improve recognition accuracy…

Computation and Language · Computer Science 2022-11-17 Suyoun Kim , Ke Li , Lucas Kabela , Rongqing Huang , Jiedan Zhu , Ozlem Kalinli , Duc Le

We propose a fully convolutional sequence-to-sequence encoder architecture with a simple and efficient decoder. Our model improves WER on LibriSpeech while being an order of magnitude more efficient than a strong RNN baseline. Key to our…

Computation and Language · Computer Science 2019-04-05 Awni Hannun , Ann Lee , Qiantong Xu , Ronan Collobert

Learning multiscale Transformer models has been evidenced as a viable approach to augmenting machine translation systems. Prior research has primarily focused on treating subwords as basic units in developing such systems. However, the…

Computation and Language · Computer Science 2023-05-29 Bei Li , Yi Jing , Xu Tan , Zhen Xing , Tong Xiao , Jingbo Zhu

In the development of neural text-to-speech systems, model pre-training with a large amount of non-target speakers' data is a common approach. However, in terms of ultimately achieved system performance for target speaker(s), the actual…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-11 Guangyan Zhang , Yichong Leng , Daxin Tan , Ying Qin , Kaitao Song , Xu Tan , Sheng Zhao , Tan Lee

Large Transformer models yield impressive results on many tasks, but are expensive to train, or even fine-tune, and so slow at decoding that their use and study becomes out of reach. We address this problem by leveraging sparsity. We study…

Multimodal language analysis is a burgeoning field of NLP that aims to simultaneously model a speaker's words, acoustical annotations, and facial expressions. In this area, lexicon features usually outperform other modalities because they…

Computation and Language · Computer Science 2021-09-14 Mehdi Arjmand , Mohammad Javad Dousti , Hadi Moradi

In this work, we propose a novel and efficient minimum word error rate (MWER) training method for RNN-Transducer (RNN-T). Unlike previous work on this topic, which performs on-the-fly limited-size beam-search decoding and generates…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-29 Jinxi Guo , Gautam Tiwari , Jasha Droppo , Maarten Van Segbroeck , Che-Wei Huang , Andreas Stolcke , Roland Maas

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…

Sound · Computer Science 2022-01-25 Xiaochun An , Frank K. Soong , Lei Xie

State of the art (SOTA) neural text to speech (TTS) models can generate natural-sounding synthetic voices. These models are characterized by large memory footprints and substantial number of operations due to the long-standing focus on…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-24 Rowel Atienza

Transformer is the state-of-the-art model in recent machine translation evaluations. Two strands of research are promising to improve models of this kind: the first uses wide networks (a.k.a. Transformer-Big) and has been the de facto…

Computation and Language · Computer Science 2019-06-06 Qiang Wang , Bei Li , Tong Xiao , Jingbo Zhu , Changliang Li , Derek F. Wong , Lidia S. Chao

While neural end-to-end text-to-speech (TTS) is superior to conventional statistical methods in many ways, the exposure bias problem in the autoregressive models remains an issue to be resolved. The exposure bias problem arises from the…

Computation and Language · Computer Science 2020-02-21 Rui Liu , Berrak Sisman , Jingdong Li , Feilong Bao , Guanglai Gao , Haizhou Li

Most Transformer language models are primarily pretrained on English text, limiting their use for other languages. As the model sizes grow, the performance gap between English and other languages with fewer compute and data resources…

Computation and Language · Computer Science 2023-01-24 Malte Ostendorff , Georg Rehm

In this work, we investigated the teacher-student training paradigm to train a fully learnable multi-channel acoustic model for far-field automatic speech recognition (ASR). Using a large offline teacher model trained on beamformed audio,…

Sound · Computer Science 2020-05-05 Sanna Wager , Aparna Khare , Minhua Wu , Kenichi Kumatani , Shiva Sundaram

In this study, we propose a simple and efficient Non-Autoregressive (NAR) text-to-speech (TTS) system based on diffusion, named SimpleSpeech. Its simpleness shows in three aspects: (1) It can be trained on the speech-only dataset, without…

Sound · Computer Science 2024-06-17 Dongchao Yang , Dingdong Wang , Haohan Guo , Xueyuan Chen , Xixin Wu , Helen Meng

Recent studies of streaming automatic speech recognition (ASR) recurrent neural network transducer (RNN-T)-based systems have fed the encoder with past contextual information in order to improve its word error rate (WER) performance. In…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-31 Alejandro Gomez-Alanis , Lukas Drude , Andreas Schwarz , Rupak Vignesh Swaminathan , Simon Wiesler

This work introduces the Cleanformer, a streaming multichannel neural based enhancement frontend for automatic speech recognition (ASR). This model has a conformer-based architecture which takes as inputs a single channel each of raw and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-05 Joseph Caroselli , Arun Narayanan , Nathan Howard , Tom O'Malley

Breaking down the structure of long texts into semantically coherent segments makes the texts more readable and supports downstream applications like summarization and retrieval. Starting from an apparent link between text coherence and…

Computation and Language · Computer Science 2020-01-06 Goran Glavaš , Swapna Somasundaran

This paper introduces a practical approach for leveraging a real-time deep learning model to alternate between speech enhancement and joint speech enhancement and separation depending on whether the input mixture contains one or two active…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-17 Kashyap Patel , Anton Kovalyov , Issa Panahi

The neural transducer is an end-to-end model for automatic speech recognition (ASR). While the model is well-suited for streaming ASR, the training process remains challenging. During training, the memory requirements may quickly exceed the…

Computation and Language · Computer Science 2023-03-14 Stefan Braun , Erik McDermott , Roger Hsiao

Transformers have recently dominated the ASR field. Although able to yield good performance, they involve an autoregressive (AR) decoder to generate tokens one by one, which is computationally inefficient. To speed up inference,…

Sound · Computer Science 2023-03-31 Zhifu Gao , Shiliang Zhang , Ian McLoughlin , Zhijie Yan