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Conformer-based models have become the dominant end-to-end architecture for speech processing tasks. With the objective of enhancing the conformer architecture for efficient training and inference, we carefully redesigned Conformer with a…

Recently, fully recurrent neural network (RNN) based end-to-end models have been proven to be effective for multi-speaker speech recognition in both the single-channel and multi-channel scenarios. In this work, we explore the use of…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-14 Xuankai Chang , Wangyou Zhang , Yanmin Qian , Jonathan Le Roux , Shinji Watanabe

Convolutional neural networks (CNN) have improved speech recognition performance greatly by exploiting localized time-frequency patterns. But these patterns are assumed to appear in symmetric and rigid kernels by the conventional CNN…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-19 Jiamin Xie , John H. L. Hansen

Transformer has achieved extraordinary performance in Natural Language Processing and Computer Vision tasks thanks to its powerful self-attention mechanism, and its variant Conformer has become a state-of-the-art architecture in the field…

Audio and Speech Processing · Electrical Eng. & Systems 2023-01-18 Dexin Liao , Tao Jiang , Feng Wang , Lin Li , Qingyang Hong

End-to-end models for robust automatic speech recognition (ASR) have not been sufficiently well-explored in prior work. With end-to-end models, one could choose to preprocess the input speech using speech enhancement techniques and train…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Archiki Prasad , Preethi Jyothi , Rajbabu Velmurugan

The recently proposed conformer architecture has been successfully used for end-to-end automatic speech recognition (ASR) architectures achieving state-of-the-art performance on different datasets. To our best knowledge, the impact of using…

Computation and Language · Computer Science 2022-02-22 Mohammad Zeineldeen , Jingjing Xu , Christoph Lüscher , Wilfried Michel , Alexander Gerstenberger , Ralf Schlüter , Hermann Ney

Data-driven models achieve successful results in Speech Emotion Recognition (SER). However, these models, which are often based on general acoustic features or end-to-end approaches, show poor performance when the testing set has a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-15 Duowei Tang , Peter Kuppens , Lucca Geurts , Toon van Waterschoot

End-to-end speech recognition models are improved by incorporating external text sources, typically by fusion with an external language model. Such language models have to be retrained whenever the corpus of interest changes. Furthermore,…

Computation and Language · Computer Science 2023-03-21 Bolaji Yusuf , Aditya Gourav , Ankur Gandhe , Ivan Bulyko

Automatic speech recognition research focuses on training and evaluating on static datasets. Yet, as speech models are increasingly deployed on personal devices, such models encounter user-specific distributional shifts. To simulate this…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-26 Anuj Diwan , Ching-Feng Yeh , Wei-Ning Hsu , Paden Tomasello , Eunsol Choi , David Harwath , Abdelrahman Mohamed

End-to-end speech-to-text translation models are often initialized with pre-trained speech encoder and pre-trained text decoder. This leads to a significant training gap between pre-training and fine-tuning, largely due to the modality…

Computation and Language · Computer Science 2022-07-05 Jinming Zhao , Hao Yang , Ehsan Shareghi , Gholamreza Haffari

Recently, conformer-based end-to-end automatic speech recognition, which outperforms recurrent neural network based ones, has received much attention. Although the parallel computing of conformer is more efficient than recurrent neural…

Sound · Computer Science 2021-07-26 Shengqiang Li , Menglong Xu , Xiao-Lei Zhang

We investigate training end-to-end speech recognition models with the recurrent neural network transducer (RNN-T): a streaming, all-neural, sequence-to-sequence architecture which jointly learns acoustic and language model components from…

Computation and Language · Computer Science 2018-01-04 Kanishka Rao , Haşim Sak , Rohit Prabhavalkar

Regularization is important for end-to-end speech models, since the models are highly flexible and easy to overfit. Data augmentation and dropout has been important for improving end-to-end models in other domains. However, they are…

Computation and Language · Computer Science 2017-12-20 Yingbo Zhou , Caiming Xiong , Richard Socher

The recently proposed Conformer model has become the de facto backbone model for various downstream speech tasks based on its hybrid attention-convolution architecture that captures both local and global features. However, through a series…

Audio and Speech Processing · Electrical Eng. & Systems 2022-10-18 Sehoon Kim , Amir Gholami , Albert Shaw , Nicholas Lee , Karttikeya Mangalam , Jitendra Malik , Michael W. Mahoney , Kurt Keutzer

We present a state-of-the-art speech recognition system developed using end-to-end deep learning. Our architecture is significantly simpler than traditional speech systems, which rely on laboriously engineered processing pipelines; these…

In recent years, Large Language Models (LLMs) have garnered significant attention from the research community due to their exceptional performance and generalization capabilities. In this paper, we introduce a novel method for…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-21 Egor Lakomkin , Chunyang Wu , Yassir Fathullah , Ozlem Kalinli , Michael L. Seltzer , Christian Fuegen

This paper proposes a simple yet effective way of regularising the encoder-decoder-based automatic speech recognition (ASR) models that enhance the robustness of the model and improve the generalisation to out-of-domain scenarios. The…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-24 Alexander Polok , Santosh Kesiraju , Karel Beneš , Lukáš Burget , Jan Černocký

Optimization of modern ASR architectures is among the highest priority tasks since it saves many computational resources for model training and inference. The work proposes a new Uconv-Conformer architecture based on the standard Conformer…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-14 Andrei Andrusenko , Rauf Nasretdinov , Aleksei Romanenko

Conformer models have achieved state-of-the-art(SOTA) results in end-to-end speech recognition. However Conformer mainly focuses on temporal modeling while pays less attention on time-frequency property of speech feature. In this paper we…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-01 Yongjun Jiang , Jian Yu , Wenwen Yang , Bihong Zhang , Yanfeng Wang

End-to-End (E2E) automatic speech recognition (ASR) systems used in voice assistants often have difficulties recognizing infrequent words personalized to the user, such as names and places. Rare words often have non-trivial pronunciations,…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-09 Rahul Pandey , Roger Ren , Qi Luo , Jing Liu , Ariya Rastrow , Ankur Gandhe , Denis Filimonov , Grant Strimel , Andreas Stolcke , Ivan Bulyko