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ASR systems have become increasingly widespread in recent years. However, their textual outputs often require post-processing tasks before they can be practically utilized. To address this issue, we draw inspiration from the multifaceted…

Computation and Language · Computer Science 2023-09-22 Lei Zhang , Zhengkun Tian , Xiang Chen , Jiaming Sun , Hongyu Xiang , Ke Ding , Guanglu Wan

Automatic Speech Recognition (ASR) systems must be robust to the myriad types of noises present in real-world environments including environmental noise, room impulse response, special effects as well as attacks by malicious actors…

Sound · Computer Science 2024-09-26 Muhammad A. Shah , Bhiksha Raj

Whisper is a multitask and multilingual speech model covering 99 languages. It yields commendable automatic speech recognition (ASR) results in a subset of its covered languages, but the model still underperforms on a non-negligible number…

Computation and Language · Computer Science 2025-12-02 Thomas Palmeira Ferraz , Marcely Zanon Boito , Caroline Brun , Vassilina Nikoulina

In this paper two different approaches to enhance the performance of the most challenging component of a Speaker Diarization system are presented, i.e. the speaker clustering part. A processing step is proposed enhancing the input features…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-04 Dimitrios Dimitriadis

In automatic speech recognition (ASR), wideband (WB) and narrowband (NB) speech signals with different sampling rates typically use separate acoustic models. Therefore mixed-bandwidth (MB) acoustic modeling has important practical values…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-12 Khoi-Nguyen C. Mac , Xiaodong Cui , Wei Zhang , Michael Picheny

This paper addresses the issue of active speaker detection (ASD) in noisy environments and formulates a robust active speaker detection (rASD) problem. Existing ASD approaches leverage both audio and visual modalities, but non-speech sounds…

Multimedia · Computer Science 2024-04-02 Siva Sai Nagender Vasireddy , Chenxu Zhang , Xiaohu Guo , Yapeng Tian

Robust voice activity detection (VAD) is a challenging task in low signal-to-noise (SNR) environments. Recent studies show that speech enhancement is helpful to VAD, but the performance improvement is limited. To address this issue, here we…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-14 Xu Tan , Xiao-Lei Zhang

Approximate dynamic programming (ADP) has proven itself in a wide range of applications spanning large-scale transportation problems, health care, revenue management, and energy systems. The design of effective ADP algorithms has many…

Optimization and Control · Mathematics 2014-07-15 Ilya O. Ryzhov , Peter I. Frazier , Warren B. Powell

In recent decades, many studies have suggested that phase information is crucial for speech enhancement (SE), and time-domain single-channel speech enhancement techniques have shown promise in noise suppression and robust automatic speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-27 Fu-An Chao , Jeih-weih Hung , Berlin Chen

When dealing with overlapped speech, the performance of automatic speech recognition (ASR) systems substantially degrades as they are designed for single-talker speech. To enhance ASR performance in conversational or meeting environments,…

Audio and Speech Processing · Electrical Eng. & Systems 2023-11-16 Hassan Taherian , DeLiang Wang

This paper describes noisy speech recognition for an augmented reality headset that helps verbal communication within real multiparty conversational environments. A major approach that has actively been studied in simulated environments is…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-18 Yicheng Du , Aditya Arie Nugraha , Kouhei Sekiguchi , Yoshiaki Bando , Mathieu Fontaine , Kazuyoshi Yoshii

Body-conduction microphone signals (BMS) bypass airborne sound, providing strong noise resistance. However, a complementary modality is required to compensate for the inherent loss of high-frequency information. In this study, we propose a…

Sound · Computer Science 2025-08-29 Yunsik Kim , Yoonyoung Chung

Automatic Speech Recognition (ASR) is an integral component of modern technology, powering applications such as voice-activated assistants, transcription services, and accessibility tools. Yet ASR systems continue to struggle with the…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-20 Mohammad Reza Peyghan , Saman Soleimani Roudi , Saeedreza Zouashkiani , Sajjad Amini , Fatemeh Rajabi , Shahrokh Ghaemmaghami

Multi-channel speech enhancement aims to recover clean speech from noisy multi-channel recordings. Most deep learning methods employ discriminative training, which can lead to non-linear distortions from regression-based objectives,…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-26 Zhongweiyang Xu , Ashutosh Pandey , Juan Azcarreta , Zhaoheng Ni , Sanjeel Parekh , Buye Xu

With the rapid development of speech assistants, adapting server-intended automatic speech recognition (ASR) solutions to a direct device has become crucial. Researchers and industry prefer to use end-to-end ASR systems for on-device speech…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-08 Aleksandr Laptev , Andrei Andrusenko , Ivan Podluzhny , Anton Mitrofanov , Ivan Medennikov , Yuri Matveev

With the growing adoption of wearable devices such as smart glasses for AI assistants, wearer speech recognition (WSR) is becoming increasingly critical to next-generation human-computer interfaces. However, in real environments,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-19 Yufeng Yang , Yiteng Huang , Yong Xu , Li Wan , Suwon Shon , Yang Liu , Yifeng Fan , Zhaojun Yang , Olivier Siohan , Yue Liu , Ming Sun , Florian Metze

This paper describes the speaker diarization system developed for the Multimodal Information-Based Speech Processing (MISP) 2025 Challenge. First, we utilize the Sequence-to-Sequence Neural Diarization (S2SND) framework to generate initial…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-23 Ming Cheng , Fei Su , Cancan Li , Juan Liu , Ming Li

To better model the contextual information and increase the generalization ability of Speech Activity Detection (SAD) system, this paper leverages a multi-lingual Automatic Speech Recognition (ASR) system to perform SAD. Sequence…

Sound · Computer Science 2021-04-13 Seyyed Saeed Sarfjoo , Srikanth Madikeri , Petr Motlicek

Spontaneous or conversational multilingual speech presents many challenges for state-of-the-art automatic speech recognition (ASR) systems. In this work, we present a new technique AMPS that augments a multilingual multimodal ASR system…

Computation and Language · Computer Science 2025-04-18 Abhishek Gupta , Amruta Parulekar , Sameep Chattopadhyay , Preethi Jyothi

Speech enhancement (SE) is proved effective in reducing noise from noisy speech signals for downstream automatic speech recognition (ASR), where multi-task learning strategy is employed to jointly optimize these two tasks. However, the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-04 Yuchen Hu , Chen Chen , Ruizhe Li , Qiushi Zhu , Eng Siong Chng