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Code-switching speech recognition has attracted an increasing interest recently, but the need for expert linguistic knowledge has always been a big issue. End-to-end automatic speech recognition (ASR) simplifies the building of ASR systems…

Computation and Language · Computer Science 2018-11-02 Ne Luo , Dongwei Jiang , Shuaijiang Zhao , Caixia Gong , Wei Zou , Xiangang Li

Pre-trained models, especially self-supervised learning (SSL) models, have demonstrated impressive results in automatic speech recognition (ASR) task. While most applications of SSL models focus on leveraging continuous representations as…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-03 Zehan Li , Yan Yang , Xueqing Li , Jian Kang , Xiao-Lei Zhang , Jie Li

New-age conversational agent systems perform both speech emotion recognition (SER) and automatic speech recognition (ASR) using two separate and often independent approaches for real-world application in noisy environments. In this paper,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Lokesh Bansal , S. Pavankumar Dubagunta , Malolan Chetlur , Pushpak Jagtap , Aravind Ganapathiraju

End-to-end (E2E) automatic speech recognition (ASR) systems directly map acoustics to words using a unified model. Previous works mostly focus on E2E training a single model which integrates acoustic and language model into a whole.…

Computation and Language · Computer Science 2018-03-06 Zhehuai Chen , Qi Liu , Hao Li , Kai Yu

End-to-end approaches for automatic speech recognition (ASR) benefit from directly modeling the probability of the word sequence given the input audio stream in a single neural network. However, compared to conventional ASR systems, these…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-19 Ankur Gandhe , Ariya Rastrow

Recently, the end-to-end approach has proven its efficacy in monaural multi-speaker speech recognition. However, high word error rates (WERs) still prevent these systems from being used in practical applications. On the other hand, the…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-17 Xuankai Chang , Wangyou Zhang , Yanmin Qian , Jonathan Le Roux , Shinji Watanabe

This paper presents a novel deep learning architecture for acoustic model in the context of Automatic Speech Recognition (ASR), termed as MixNet. Besides the conventional layers, such as fully connected layers in DNN-HMM and memory cells in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-03 Vishwanath Pratap Singh , Shakti P. Rath , Abhishek Pandey

Although recent advances in deep learning technology improved automatic speech recognition (ASR), it remains difficult to recognize speech when it overlaps other people's voices. Speech separation or extraction is often used as a front-end…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-17 Hiroshi Sato , Tsubasa Ochiai , Marc Delcroix , Keisuke Kinoshita , Takafumi Moriya , Naoyuki Kamo

In this paper, we propose a novel technique for direct recognition of multiple speech streams given the single channel of mixed speech, without first separating them. Our technique is based on permutation invariant training (PIT) for…

Sound · Computer Science 2018-12-06 Dong Yu , Xuankai Chang , Yanmin Qian

We propose a first step toward multilingual end-to-end automatic speech recognition (ASR) by integrating knowledge about speech articulators. The key idea is to leverage a rich set of fundamental units that can be defined "universally"…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-19 Hao Yen , Sabato Marco Siniscalchi , Chin-Hui Lee

In this paper, we propose a novel auxiliary loss function for target-speaker automatic speech recognition (ASR). Our method automatically extracts and transcribes target speaker's utterances from a monaural mixture of multiple speakers…

Computation and Language · Computer Science 2019-06-27 Naoyuki Kanda , Shota Horiguchi , Ryoichi Takashima , Yusuke Fujita , Kenji Nagamatsu , Shinji Watanabe

The INTERSPEECH 2025 Challenge on Multilingual Conversational Speech Language Models (MLC-SLM) promotes multilingual conversational ASR with large language models (LLMs). Our previous SHNU-mASR system adopted a competitive…

Computation and Language · Computer Science 2026-02-03 Yuxiang Mei , Dongxing Xu , Jiaen Liang , Yanhua Long

Noise robustness is critical when applying automatic speech recognition (ASR) in real-world scenarios. One solution involves the used of speech enhancement (SE) models as the front end of ASR. However, neural network-based (NN-based) SE…

Recently, the end-to-end approach has been successfully applied to multi-speaker speech separation and recognition in both single-channel and multichannel conditions. However, severe performance degradation is still observed in the…

Automatic speech recognition (ASR) has benefited from advances in pretrained speech and language models, yet most systems remain constrained to monolingual settings and short, isolated utterances. While recent efforts in context-aware ASR…

Computation and Language · Computer Science 2026-03-09 Yuchen Zhang , Haralambos Mouratidis , Ravi Shekhar

Automatic Speech Recognition (ASR) in conversational settings presents unique challenges, including extracting relevant contextual information from previous conversational turns. Due to irrelevant content, error propagation, and redundancy,…

Sound · Computer Science 2024-04-30 Kun Wei , Bei Li , Hang Lv , Quan Lu , Ning Jiang , Lei Xie

Accurate recognition of cocktail party speech containing overlapping speakers, noise and reverberation remains a highly challenging task to date. Motivated by the invariance of visual modality to acoustic signal corruption, an audio-visual…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-07 Guinan Li , Jiajun Deng , Mengzhe Geng , Zengrui Jin , Tianzi Wang , Shujie Hu , Mingyu Cui , Helen Meng , Xunying Liu

In short video and live broadcasts, speech, singing voice, and background music often overlap and obscure each other. This complexity creates difficulties in structuring and recognizing the audio content, which may impair subsequent ASR and…

Sound · Computer Science 2024-04-18 Ye Bai , Chenxing Li , Hao Li , Yuanyuan Zhao , Xiaorui Wang

Code-switching describes the practice of using more than one language in the same sentence. In this study, we investigate how to optimize a neural transducer based bilingual automatic speech recognition (ASR) model for code-switching…

Automatic speech recognition (ASR) models are typically designed to operate on a single input data type, e.g. a single or multi-channel audio streamed from a device. This design decision assumes the primary input data source does not change…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-30 Gokce Keskin , Minhua Wu , Brian King , Harish Mallidi , Yang Gao , Jasha Droppo , Ariya Rastrow , Roland Maas