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Modern wake word detection systems usually rely on neural networks for acoustic modeling. Transformers has recently shown superior performance over LSTM and convolutional networks in various sequence modeling tasks with their better…

Computation and Language · Computer Science 2021-02-10 Yiming Wang , Hang Lv , Daniel Povey , Lei Xie , Sanjeev Khudanpur

Wav2vec 2.0 is a state-of-the-art speech recognition model which maps speech audio waveforms into latent representations. The largest version of wav2vec 2.0 contains 317 million parameters. Hence, the inference latency of wav2vec 2.0 will…

Computation and Language · Computer Science 2021-04-02 Zilun Peng , Akshay Budhkar , Ilana Tuil , Jason Levy , Parinaz Sobhani , Raphael Cohen , Jumana Nassour

Real-time low-light image enhancement on mobile and embedded devices requires models that balance visual quality and computational efficiency. Existing deep learning methods often rely on large networks and labeled datasets, limiting their…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Guangrui Bai , Hailong Yan , Wenhai Liu , Yahui Deng , Erbao Dong

Despite rapid progress in the recent past, current speech recognition systems still require labeled training data which limits this technology to a small fraction of the languages spoken around the globe. This paper describes wav2vec-U,…

Computation and Language · Computer Science 2022-05-04 Alexei Baevski , Wei-Ning Hsu , Alexis Conneau , Michael Auli

We introduce Wav2Seq, the first self-supervised approach to pre-train both parts of encoder-decoder models for speech data. We induce a pseudo language as a compact discrete representation, and formulate a self-supervised pseudo speech…

Computation and Language · Computer Science 2022-05-03 Felix Wu , Kwangyoun Kim , Shinji Watanabe , Kyu Han , Ryan McDonald , Kilian Q. Weinberger , Yoav Artzi

Keyword spotting and in particular Wake-Up-Word (WUW) detection is a very important task for voice assistants. A very common issue of voice assistants is that they get easily activated by background noise like music, TV or background speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-01 David Bonet , Guillermo Cámbara , Fernando López , Pablo Gómez , Carlos Segura , Jordi Luque

We explore unsupervised pre-training for speech recognition by learning representations of raw audio. wav2vec is trained on large amounts of unlabeled audio data and the resulting representations are then used to improve acoustic model…

Computation and Language · Computer Science 2019-09-12 Steffen Schneider , Alexei Baevski , Ronan Collobert , Michael Auli

Self-supervised learning approaches have lately achieved great success on a broad spectrum of machine learning problems. In the field of speech processing, one of the most successful recent self-supervised models is wav2vec 2.0. In this…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-10 Marie Kunešová , Zbyněk Zajíc

Neural latent variable models enable the discovery of interesting structure in speech audio data. This paper presents a comparison of two different approaches which are broadly based on predicting future time-steps or auto-encoding the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-28 Henry Zhou , Alexei Baevski , Michael Auli

Audio-only-based wake word spotting (WWS) is challenging under noisy conditions due to environmental interference in signal transmission. In this paper, we investigate on designing a compact audio-visual WWS system by utilizing visual…

Sound · Computer Science 2022-02-18 Hengshun Zhou , Jun Du , Chao-Han Huck Yang , Shifu Xiong , Chin-Hui Lee

Modern automatic speech recognition (ASR) models, such as OpenAI's Whisper, rely on deep encoder-decoder architectures, and their encoders are a critical bottleneck for efficient deployment due to high computational intensity. We introduce…

Machine Learning · Computer Science 2025-08-26 Keisuke Kamahori , Jungo Kasai , Noriyuki Kojima , Baris Kasikci

We consider the task of unsupervised extraction of meaningful latent representations of speech by applying autoencoding neural networks to speech waveforms. The goal is to learn a representation able to capture high level semantic content…

Machine Learning · Computer Science 2019-09-12 Jan Chorowski , Ron J. Weiss , Samy Bengio , Aäron van den Oord

This study evaluates the performance of three advanced speech encoder models, Wav2Vec 2.0, XLS-R, and Whisper, in speaker identification tasks. By fine-tuning these models and analyzing their layer-wise representations using SVCCA, k-means…

Sound · Computer Science 2025-09-30 Linus Stuhlmann , Michael Alexander Saxer

Automatic detection of speaker confidence is critical for adaptive computing but remains constrained by limited labelled data and the subjectivity of paralinguistic annotations. This paper proposes a semi-supervised hybrid framework that…

Sound · Computer Science 2026-05-13 Adam Wynn , Jingyun Wang

Hate speech detection on online social networks has become one of the emerging hot topics in recent years. With the broad spread and fast propagation speed across online social networks, hate speech makes significant impacts on society by…

Computation and Language · Computer Science 2024-09-26 Guanyi Mou , Pengyi Ye , Kyumin Lee

Emotion recognition datasets are relatively small, making the use of the more sophisticated deep learning approaches challenging. In this work, we propose a transfer learning method for speech emotion recognition where features extracted…

Sound · Computer Science 2021-04-09 Leonardo Pepino , Pablo Riera , Luciana Ferrer

This project intends to study the image representation based on attention mechanism and multimodal data. By adding multiple pattern layers to the attribute model, the semantic and hidden layers of image content are integrated. The word…

Computation and Language · Computer Science 2024-06-14 Dan Sun , Yaxin Liang , Yining Yang , Yuhan Ma , Qishi Zhan , Erdi Gao

Reliable fundamental frequency (F 0) and voicing estimation is essential for neural synthesis, yet many pitch extractors depend on large labeled corpora and degrade under realistic recording artifacts. We propose a lightweight, fully…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-21 Venkat Suprabath Bitra , Homayoon Beigi

Recent advances in unsupervised speech representation learning discover new approaches and provide new state-of-the-art for diverse types of speech processing tasks. This paper presents an investigation of using wav2vec 2.0 deep speech…

Language identification greatly impacts the success of downstream tasks such as automatic speech recognition. Recently, self-supervised speech representations learned by wav2vec 2.0 have been shown to be very effective for a range of speech…

Computation and Language · Computer Science 2021-10-19 Andros Tjandra , Diptanu Gon Choudhury , Frank Zhang , Kritika Singh , Alexis Conneau , Alexei Baevski , Assaf Sela , Yatharth Saraf , Michael Auli