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While machine learning techniques are traditionally resource intensive, we are currently witnessing an increased interest in hardware and energy efficient approaches. This need for resource-efficient machine learning is primarily driven by…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-23 Lukas Pfeifenberger , Matthias Zöhrer , Günther Schindler , Wolfgang Roth , Holger Fröning , Franz Pernkopf

Adjusting the latency, power, and accuracy of natural language understanding models is a desirable objective of an efficient architecture. This paper proposes an efficient Transformer architecture that adjusts the inference computational…

Computation and Language · Computer Science 2024-09-20 Sajjad Kachuee , Mohammad Sharifkhani

Recurrent neural networks (RNNs) have shown significant improvements in recent years for speech enhancement. However, the model complexity and inference time cost of RNNs are much higher than deep feed-forward neural networks (DNNs).…

Sound · Computer Science 2020-11-12 Cunhang Fan , Bin Liu , Jianhua Tao , Jiangyan Yi , Zhengqi Wen , Leichao Song

Achieving super-human performance in recognizing human speech has been a goal for several decades, as researchers have worked on increasingly challenging tasks. In the 1990's it was discovered, that conversational speech between two humans…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Thai-Son Nguyen , Sebastian Stueker , Alex Waibel

In multichannel speech enhancement, effectively capturing spatial and spectral information across different microphones is crucial for noise reduction. Traditional methods, such as CNN or LSTM, attempt to model the temporal dynamics of…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-15 Wenze Ren , Haibin Wu , Yi-Cheng Lin , Xuanjun Chen , Rong Chao , Kuo-Hsuan Hung , You-Jin Li , Wen-Yuan Ting , Hsin-Min Wang , Yu Tsao

Speech enhancement deep learning systems usually require large amounts of training data to operate in broad conditions or real applications. This makes the adaptability of those systems into new, low resource environments an important…

Sound · Computer Science 2017-12-19 Santiago Pascual , Maruchan Park , Joan Serrà , Antonio Bonafonte , Kang-Hun Ahn

Large Language Models (LLMs) encounter significant performance bottlenecks in long-sequence tasks due to the computational complexity and memory overhead inherent in the self-attention mechanism. To address these challenges, we introduce…

Artificial Intelligence · Computer Science 2026-02-17 Ziming Wang , Xiang Wang , Kailong Peng , Lang Qin , Juan Gabriel Kostelec , Christos Sourmpis , Axel Laborieux , Qinghai Guo

This paper investigates a self-adaptation method for speech enhancement using auxiliary speaker-aware features; we extract a speaker representation used for adaptation directly from the test utterance. Conventional studies of deep neural…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-17 Yuma Koizumi , Kohei Yatabe , Marc Delcroix , Yoshiki Masuyama , Daiki Takeuchi

Transformer-based speech enhancement models yield impressive results. However, their heterogeneous and complex structure restricts model compression potential, resulting in greater complexity and reduced hardware efficiency. Additionally,…

Hardware Architecture · Computer Science 2025-03-28 Ci-Hao Wu , Tian-Sheuan Chang

This paper delves into the challenging task of Active Speaker Detection (ASD), where the system needs to determine in real-time whether a person is speaking or not in a series of video frames. While previous works have made significant…

Computer Vision and Pattern Recognition · Computer Science 2024-09-16 Arnav Kundu , Yanzi Jin , Mohammad Sekhavat , Max Horton , Danny Tormoen , Devang Naik

This paper presents a complete hardware and software pipeline for real-time speech enhancement in noisy and reverberant conditions. The device consists of a microphone array and a camera mounted on eyeglasses, connected to an embedded…

This paper introduces a lightweight deep learning model for real-time speech enhancement, designed to operate efficiently on resource-constrained devices. The proposed model leverages a compact architecture that facilitates rapid inference…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-23 Shuubham Ojha , Felix Gervits , Carol Espy-Wilson

Frame-online speech enhancement systems in the short-time Fourier transform (STFT) domain usually have an algorithmic latency equal to the window size due to the use of overlap-add in the inverse STFT (iSTFT). This algorithmic latency…

Sound · Computer Science 2022-07-13 Zhong-Qiu Wang , Shinji Watanabe

Automatic speech quality assessment is essential for audio researchers, developers, speech and language pathologists, and system quality engineers. The current state-of-the-art systems are based on framewise speech features (hand-engineered…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-15 Karl El Hajal , Zihan Wu , Neil Scheidwasser-Clow , Gasser Elbanna , Milos Cernak

Despite the significant progress made in the last years, state-of-the-art speech recognition technologies provide a satisfactory performance only in the close-talking condition. Robustness of distant speech recognition in adverse acoustic…

Audio and Speech Processing · Electrical Eng. & Systems 2017-10-11 Mirco Ravanelli , Maurizio Omologo

Acoustic models in real-time speech recognition systems typically stack multiple unidirectional LSTM layers to process the acoustic frames over time. Performance improvements over vanilla LSTM architectures have been reported by prepending…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-02 Maarten Van Segbroeck , Harish Mallidih , Brian King , I-Fan Chen , Gurpreet Chadha , Roland Maas

With new sequence models like Mamba and xLSTM, several studies have shown that these models match or outperform the state-of-the-art in single-channel speech enhancement and audio representation learning. However, prior research has…

Sound · Computer Science 2026-01-22 Nikolai Lund Kühne , Jesper Jensen , Jan Østergaard , Zheng-Hua Tan

Automatic speech recognition systems have undoubtedly advanced with the integration of multilingual and multitask models such as Whisper, which have shown a promising ability to understand and process speech across a wide range of…

Computation and Language · Computer Science 2025-04-14 Xabier de Zuazo , Eva Navas , Ibon Saratxaga , Inma Hernáez Rioja

While attention-based architectures, such as Conformers, excel in speech enhancement, they face challenges such as scalability with respect to input sequence length. In contrast, the recently proposed Extended Long Short-Term Memory (xLSTM)…

Sound · Computer Science 2025-05-21 Nikolai Lund Kühne , Jan Østergaard , Jesper Jensen , Zheng-Hua Tan

The time delay neural network (TDNN) represents one of the state-of-the-art of neural solutions to text-independent speaker verification. However, they require a large number of filters to capture the speaker characteristics at any local…

Sound · Computer Science 2022-02-16 Tianchi Liu , Rohan Kumar Das , Kong Aik Lee , Haizhou Li