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Related papers: Exploring Neural Transducers for End-to-End Speech…

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End-to-end approaches have drawn much attention recently for significantly simplifying the construction of an automatic speech recognition (ASR) system. RNN transducer (RNN-T) is one of the popular end-to-end methods. Previous studies have…

Computation and Language · Computer Science 2019-04-24 Senmao Wang , Pan Zhou , Wei Chen , Jia Jia , Lei Xie

The RNN transducer is a promising end-to-end model candidate. We compare the original training criterion with the full marginalization over all alignments, to the commonly used maximum approximation, which simplifies, improves and speeds up…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-20 Albert Zeyer , André Merboldt , Ralf Schlüter , Hermann Ney

We introduce a novel sequence-to-sequence (seq2seq) voice conversion (VC) model based on the Transformer architecture with text-to-speech (TTS) pretraining. Seq2seq VC models are attractive owing to their ability to convert prosody. While…

Audio and Speech Processing · Electrical Eng. & Systems 2019-12-17 Wen-Chin Huang , Tomoki Hayashi , Yi-Chiao Wu , Hirokazu Kameoka , Tomoki Toda

In this paper we present an end-to-end speech recognition model with Transformer encoders that can be used in a streaming speech recognition system. Transformer computation blocks based on self-attention are used to encode both audio and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-18 Qian Zhang , Han Lu , Hasim Sak , Anshuman Tripathi , Erik McDermott , Stephen Koo , Shankar Kumar

During the last couple of years, Recurrent Neural Networks (RNN) have reached state-of-the-art performances on most of the sequence modelling problems. In particular, the "sequence to sequence" model and the neural CRF have proved to be…

Computation and Language · Computer Science 2019-04-17 Marco Dinarelli , Loïc Grobol

We present a state-of-the-art end-to-end Automatic Speech Recognition (ASR) model. We learn to listen and write characters with a joint Connectionist Temporal Classification (CTC) and attention-based encoder-decoder network. The encoder is…

Computation and Language · Computer Science 2017-06-12 Takaaki Hori , Shinji Watanabe , Yu Zhang , William Chan

In this paper, we propose to improve end-to-end (E2E) spoken language understand (SLU) in an RNN transducer model (RNN-T) by incorporating a joint self-conditioned CTC automatic speech recognition (ASR) objective. Our proposed model is akin…

Machine Learning · Computer Science 2025-01-06 Vishal Sunder , Eric Fosler-Lussier

Recently, end-to-end speech recognition with a hybrid model consisting of the connectionist temporal classification(CTC) and the attention encoder-decoder achieved state-of-the-art results. In this paper, we propose a novel CTC decoder…

Sound · Computer Science 2018-11-02 Zhe Yuan , Zhuoran Lyu , Jiwei Li , Xi Zhou

Sequence-to-sequence models have been widely used in end-to-end speech processing, for example, automatic speech recognition (ASR), speech translation (ST), and text-to-speech (TTS). This paper focuses on an emergent sequence-to-sequence…

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 automatic speech recognition (E2E-ASR) can be classified by its decoder architectures, such as connectionist temporal classification (CTC), recurrent neural network transducer (RNN-T), attention-based encoder-decoder, and…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-15 Yui Sudo , Muhammad Shakeel , Yosuke Fukumoto , Brian Yan , Jiatong Shi , Yifan Peng , Shinji Watanabe

We present a comprehensive study on building and adapting RNN transducer (RNN-T) models for spoken language understanding(SLU). These end-to-end (E2E) models are constructed in three practical settings: a case where verbatim transcripts are…

Computation and Language · Computer Science 2021-04-09 Samuel Thomas , Hong-Kwang J. Kuo , George Saon , Zoltán Tüske , Brian Kingsbury , Gakuto Kurata , Zvi Kons , Ron Hoory

Connectionist temporal classification (CTC) is a popular sequence prediction approach for automatic speech recognition that is typically used with models based on recurrent neural networks (RNNs). We explore whether deep convolutional…

Computation and Language · Computer Science 2018-02-16 Kalpesh Krishna , Liang Lu , Kevin Gimpel , Karen Livescu

Since their inception, encoder-decoder models have successfully been applied to a wide array of problems in computational linguistics. The most recent successes are predominantly due to the use of different variations of attention…

Computation and Language · Computer Science 2019-06-11 Dennis Ulmer , Dieuwke Hupkes , Elia Bruni

The field of speech recognition is in the midst of a paradigm shift: end-to-end neural networks are challenging the dominance of hidden Markov models as a core technology. Using an attention mechanism in a recurrent encoder-decoder…

Sound · Computer Science 2017-03-16 Tsubasa Ochiai , Shinji Watanabe , Takaaki Hori , John R. Hershey

Transformers are powerful neural architectures that allow integrating different modalities using attention mechanisms. In this paper, we leverage the neural transformer architectures for multi-channel speech recognition systems, where the…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-09 Feng-Ju Chang , Martin Radfar , Athanasios Mouchtaris , Brian King , Siegfried Kunzmann

Thus far, end-to-end (E2E) models have not been shown to outperform state-of-the-art conventional models with respect to both quality, i.e., word error rate (WER), and latency, i.e., the time the hypothesis is finalized after the user stops…

The goal of spoken language understanding (SLU) systems is to determine the meaning of the input speech signal, unlike speech recognition which aims to produce verbatim transcripts. Advances in end-to-end (E2E) speech modeling have made it…

Computation and Language · Computer Science 2022-01-31 Hong-Kwang J. Kuo , Zoltan Tuske , Samuel Thomas , Brian Kingsbury , George Saon

Sequence-to-sequence (seq2seq) voice conversion (VC) models are attractive owing to their ability to convert prosody. Nonetheless, without sufficient data, seq2seq VC models can suffer from unstable training and mispronunciation problems in…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-10 Wen-Chin Huang , Tomoki Hayashi , Yi-Chiao Wu , Hirokazu Kameoka , Tomoki Toda

The success of self-attention in NLP has led to recent applications in end-to-end encoder-decoder architectures for speech recognition. Separately, connectionist temporal classification (CTC) has matured as an alignment-free,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-02 Julian Salazar , Katrin Kirchhoff , Zhiheng Huang