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This paper summarizes our acoustic modeling efforts in the Johns Hopkins University speech recognition system for the CHiME-5 challenge to recognize highly-overlapped dinner party speech recorded by multiple microphone arrays. We explore…

Audio and Speech Processing · Electrical Eng. & Systems 2024-05-21 Vimal Manohar , Szu-Jui Chen , Zhiqi Wang , Yusuke Fujita , Shinji Watanabe , Sanjeev Khudanpur

Multi-talker overlapped speech recognition remains a significant challenge, requiring not only speech recognition but also speaker diarization tasks to be addressed. In this paper, to better address these tasks, we first introduce speaker…

Sound · Computer Science 2023-12-19 Peng Shen , Xugang Lu , Hisashi Kawai

Casual conversations involving multiple speakers and noises from surrounding devices are common in everyday environments, which degrades the performances of automatic speech recognition systems. These challenging characteristics of…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-24 Nelson Yalta , Shinji Watanabe , Takaaki Hori , Kazuhiro Nakadai , Tetsuya Ogata

Diarization is a crucial component in meeting transcription systems to ease the challenges of speech enhancement and attribute the transcriptions to the correct speaker. Particularly in the presence of overlapping or noisy speech, these…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-06 Christoph Boeddeker , Tobias Cord-Landwehr , Reinhold Haeb-Umbach

Speech Large Language Models (Speech LLMs) have emerged as a crucial paradigm in recent years, extending the capabilities of traditional LLMs to speech tasks such as automatic speech recognition (ASR) and spoken dialogue modeling. However,…

Computation and Language · Computer Science 2025-07-08 Phurich Saengthong , Boonnithi Jiaramaneepinit , Sheng Li , Manabu Okumura , Takahiro Shinozaki

Most neural speaker diarization systems rely on sufficient manual training data labels, which are hard to collect under real-world scenarios. This paper proposes a semi-supervised speaker diarization system to utilize large-scale…

Audio and Speech Processing · Electrical Eng. & Systems 2023-07-18 Shilong Wu , Jun Du , Maokui He , Shutong Niu , Hang Chen , Haitao Tang , Chin-Hui Lee

In this paper, the Lingban entry to the third 'CHiME' speech separation and recognition challenge is presented. A time-frequency masking based speech enhancement front-end is proposed to suppress the environmental noise utilizing…

Sound · Computer Science 2015-09-25 Zaihu Pang , Fengyun Zhu

Speaker diarization, the process of segmenting an audio stream or transcribed speech content into homogenous partitions based on speaker identity, plays a crucial role in the interpretation and analysis of human speech. Most existing…

Machine Learning · Computer Science 2024-08-23 Luyao Cheng , Hui Wang , Siqi Zheng , Yafeng Chen , Rongjie Huang , Qinglin Zhang , Qian Chen , Xihao Li

The DIarization and Speech Processing for LAnguage understanding in Conversational Environments - Medical (DISPLACE-M) challenge introduces a conversational AI benchmark for understanding goal-oriented, real-world medical dialogues. The…

To date, the bulk of research on single-channel speech separation has been conducted using clean, near-field, read speech, which is not representative of many modern applications. In this work, we develop a procedure for constructing…

Computation and Language · Computer Science 2024-10-30 Matthew Maciejewski , Gregory Sell , Leibny Paola Garcia-Perera , Shinji Watanabe , Sanjeev Khudanpur

This technical report outlines our submission system for the CHiME-8 NOTSOFAR-1 Challenge. The primary difficulty of this challenge is the dataset recorded across various conference rooms, which captures real-world complexities such as high…

Speech separation with several speakers is a challenging task because of the non-stationarity of the speech and the strong signal similarity between interferent sources. Current state-of-the-art solutions can separate well the different…

Signal Processing · Electrical Eng. & Systems 2021-02-09 Nicolas Furnon , Romain Serizel , Irina Illina , Slim Essid

This paper details our speaker diarization system designed for multi-domain, multi-microphone casual conversations. The proposed diarization pipeline uses weighted prediction error (WPE)-based dereverberation as a front end, then applies…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-25 Naohiro Tawara , Marc Delcroix , Atsushi Ando , Atsunori Ogawa

Speech recognition in adverse real-world environments is highly affected by reverberation and nonstationary background noise. A well-known strategy to reduce such undesired signal components in multi-microphone scenarios is spatial…

Sound · Computer Science 2017-08-08 Hendrik Barfuss , Christian Huemmer , Andreas Schwarz , Walter Kellermann

Speaker diarization is the task of answering Who spoke and when? in an audio stream. Pipeline systems rely on speech segmentation to extract speakers' segments and achieve robust speaker diarization. This paper proposes a common framework…

Sound · Computer Science 2023-06-08 Théo Mariotte , Anthony Larcher , Silvio Montrésor , Jean-Hugh Thomas

The DIarization of SPeaker and LAnguage in Conversational Environments (DISPLACE) 2024 challenge is the second in the series of DISPLACE challenges, which involves tasks of speaker diarization (SD) and language diarization (LD) on a…

Speaker diarization is a task to label audio or video recordings with classes that correspond to speaker identity, or in short, a task to identify "who spoke when". In the early years, speaker diarization algorithms were developed for…

Audio and Speech Processing · Electrical Eng. & Systems 2021-11-29 Tae Jin Park , Naoyuki Kanda , Dimitrios Dimitriadis , Kyu J. Han , Shinji Watanabe , Shrikanth Narayanan

We introduce the task of Multi-Modal Context-Aware Recognition (MCoRec) in the ninth CHiME Challenge, which addresses the cocktail-party problem of overlapping conversations in a single-room setting using audio, visual, and contextual cues.…

Computation and Language · Computer Science 2026-02-13 Thai-Binh Nguyen , Katerina Zmolikova , Pingchuan Ma , Ngoc Quan Pham , Christian Fuegen , Alexander Waibel

Since the first speech recognition systems were built more than 30 years ago, improvement in voice technology has enabled applications such as smart assistants and automated customer support. However, conversation intelligence of the future…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-15 Desh Raj

The ICASSP 2022 Multi-channel Multi-party Meeting Transcription Grand Challenge (M2MeT) focuses on one of the most valuable and the most challenging scenarios of speech technologies. The M2MeT challenge has particularly set up two tracks,…