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To address the issue of poor generalization ability in end-to-end speech recognition models within deep learning, this study proposes a new Conformer-based speech recognition model called "Conformer-R" that incorporates the R-drop…

Sound · Computer Science 2023-06-16 Weidong Ji , Shijie Zan , Guohui Zhou , Xu Wang

Advances in deep learning have led to state-of-the-art performance across a multitude of speech recognition tasks. Nevertheless, the widespread deployment of deep neural networks for on-device speech recognition remains a challenge,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-14 Alexander Wong , Mahmoud Famouri , Maya Pavlova , Siddharth Surana

Conformer has shown a great success in automatic speech recognition (ASR) on many public benchmarks. One of its crucial drawbacks is the quadratic time-space complexity with respect to the input sequence length, which prohibits the model to…

Sound · Computer Science 2022-03-30 Jingyu Sun , Guiping Zhong , Dinghao Zhou , Baoxiang Li , Yiran Zhong

In this work, we propose a streaming AV-ASR system based on a hybrid connectionist temporal classification (CTC)/attention neural network architecture. The audio and the visual encoder neural networks are both based on the conformer…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-04 Pingchuan Ma , Niko Moritz , Stavros Petridis , Christian Fuegen , Maja Pantic

Conformers have shown great results in speech processing due to their ability to capture both local and global interactions. In this work, we utilize a self-supervised contrastive learning framework to train conformer-based encoders that…

Sound · Computer Science 2025-09-12 Kemal Altwlkany , Elmedin Selmanovic , Sead Delalic

Since their introduction the Trasformer architectures emerged as the dominating architectures for both natural language processing and, more recently, computer vision applications. An intrinsic limitation of this family of "fully-attentive"…

Machine Learning · Computer Science 2023-03-16 Carmelo Scribano , Giorgia Franchini , Marco Prato , Marko Bertogna

In this paper, we present an end-to-end automatic speech recognition system, which successfully employs subword units in a hybrid CTC-Attention based system. The subword units are obtained by the byte-pair encoding (BPE) compression…

Audio and Speech Processing · Electrical Eng. & Systems 2018-09-07 Zhangyu Xiao , Zhijian Ou , Wei Chu , Hui Lin

This work introduces \emph{cross-attention conformer}, an attention-based architecture for context modeling in speech enhancement. Given that the context information can often be sequential, and of different length as the audio that is to…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-02 Arun Narayanan , Chung-Cheng Chiu , Tom O'Malley , Quan Wang , Yanzhang He

In this study, we present recent developments on ESPnet: End-to-End Speech Processing toolkit, which mainly involves a recently proposed architecture called Conformer, Convolution-augmented Transformer. This paper shows the results for a…

Decoding speech-related information from non-invasive MEG is a key step toward scalable brain-computer interfaces. We present compact Conformer-based decoders on the LibriBrain 2025 PNPL benchmark for two core tasks: Speech Detection and…

Computation and Language · Computer Science 2026-02-11 Xabier de Zuazo , Ibon Saratxaga , Eva Navas

In this paper, we present an in-depth study on online attention mechanisms and distillation techniques for dual-mode (i.e., joint online and offline) ASR using the Conformer Transducer. In the dual-mode Conformer Transducer model, layers…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-23 Felix Weninger , Marco Gaudesi , Md Akmal Haidar , Nicola Ferri , Jesús Andrés-Ferrer , Puming Zhan

Speech enhancement is a demanding task in automated speech processing pipelines, focusing on separating clean speech from noisy channels. Transformer based models have recently bested RNN and CNN models in speech enhancement, however at the…

Sound · Computer Science 2023-08-07 Jinyu Long , Jetic Gū , Binhao Bai , Zhibo Yang , Ping Wei , Junli Li

Self-attention is a key enabler of state-of-art accuracy for various transformer-based Natural Language Processing models. This attention mechanism calculates a correlation score for each word with respect to the other words in a sentence.…

Computation and Language · Computer Science 2022-04-18 Zheng Li , Soroush Ghodrati , Amir Yazdanbakhsh , Hadi Esmaeilzadeh , Mingu Kang

This paper investigates four types of cross-utterance speech contexts modeling approaches for streaming and non-streaming Conformer-Transformer (C-T) ASR systems: i) input audio feature concatenation; ii) cross-utterance Encoder embedding…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-15 Mingyu Cui , Mengzhe Geng , Jiajun Deng , Chengxi Deng , Jiawen Kang , Shujie Hu , Guinan Li , Tianzi Wang , Zhaoqing Li , Xie Chen , Xunying Liu

Automatic speaker verification systems are vulnerable to a variety of access threats, prompting research into the formulation of effective spoofing detection systems to act as a gate to filter out such spoofing attacks. This study…

Sound · Computer Science 2022-11-21 Zhenyu Wang , John H. L. Hansen

Phonetic speech transcription is crucial for fine-grained linguistic analysis and downstream speech applications. While Connectionist Temporal Classification (CTC) is a widely used approach for such tasks due to its efficiency, it often…

Continuous speech separation plays a vital role in complicated speech related tasks such as conversation transcription. The separation model extracts a single speaker signal from a mixed speech. In this paper, we use transformer and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-23 Sanyuan Chen , Yu Wu , Zhuo Chen , Jian Wu , Jinyu Li , Takuya Yoshioka , Chengyi Wang , Shujie Liu , Ming Zhou

Transformer models have achieved state-of-the-art results in a wide range of NLP tasks including summarization. Training and inference using large transformer models can be computationally expensive. Previous work has focused on one…

Computation and Language · Computer Science 2021-09-10 Potsawee Manakul , Mark J. F. Gales

Automatic recognition systems for child speech are lagging behind those dedicated to adult speech in the race of performance. This phenomenon is due to the high acoustic and linguistic variability present in child speech caused by their…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-05 Lucile Gelin , Morgane Daniel , Julien Pinquier , Thomas Pellegrini

This paper presents the use of non-autoregressive (NAR) approaches for joint automatic speech recognition (ASR) and spoken language understanding (SLU) tasks. The proposed NAR systems employ a Conformer encoder that applies connectionist…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-24 Mohan Li , Rama Doddipatla