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Speaker Diarization (SD) is a crucial component of modern end-to-end ASR pipelines. Traditional SD systems, which are typically audio-based and operate independently of ASR, often introduce speaker errors, particularly during speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-16 Anurag Kumar , Rohit Paturi , Amber Afshan , Sundararajan Srinivasan

Speaker diarization, the task of segmenting an audio recording based on speaker identity, constitutes an important speech pre-processing step for several downstream applications.The conventional approach to diarization involves multiple…

Audio and Speech Processing · Electrical Eng. & Systems 2024-12-03 Prachi Singh , Sriram Ganapathy

Speaker diarization is necessary for interpreting conversations transcribed using automated speech recognition (ASR) tools. Despite significant developments in diarization methods, diarization accuracy remains an issue. Here, we investigate…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-18 Georgios Efstathiadis , Vijay Yadav , Anzar Abbas

Transcribing and understanding multi-speaker conversations requires speech recognition, speaker attribution, and timestamp localization. While speech LLMs excel at single-speaker tasks, multi-speaker scenarios remain challenging due to…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-06 Zhennan Lin , Shuai Wang , Zhaokai Sun , Pengyuan Xie , Chuan Xie , Jie Liu , Qiang Zhang , Lei Xie

Speaker diarization has been mainly developed based on the clustering of speaker embeddings. However, the clustering-based approach has two major problems; i.e., (i) it is not optimized to minimize diarization errors directly, and (ii) it…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-16 Yusuke Fujita , Naoyuki Kanda , Shota Horiguchi , Yawen Xue , Kenji Nagamatsu , Shinji Watanabe

Spoken language recognition (SLR) refers to the automatic process used to determine the language present in a speech sample. SLR is an important task in its own right, for example, as a tool to analyze or categorize large amounts of…

Computation and Language · Computer Science 2022-08-15 Luciana Ferrer , Diego Castan , Mitchell McLaren , Aaron Lawson

This paper explores the integration of Large Language Models (LLMs) into Automatic Speech Recognition (ASR) systems to improve transcription accuracy. The increasing sophistication of LLMs, with their in-context learning capabilities and…

Computation and Language · Computer Science 2025-06-03 Zeping Min , Jinbo Wang

The INTERSPEECH 2025 Challenge on Multilingual Conversational Speech Language Models (MLC-SLM) promotes multilingual conversational ASR with large language models (LLMs). Our previous SHNU-mASR system adopted a competitive…

Computation and Language · Computer Science 2026-02-03 Yuxiang Mei , Dongxing Xu , Jiaen Liang , Yanhua Long

This study investigates robust speaker localization for con-tinuous speech separation and speaker diarization, where we use speaker directions to group non-contiguous segments of the same speaker. Assuming that speakers do not move and are…

Sound · Computer Science 2021-07-15 Zhong-Qiu Wang , DeLiang Wang

Attractor-based end-to-end diarization is achieving comparable accuracy to the carefully tuned conventional clustering-based methods on challenging datasets. However, the main drawback is that it cannot deal with the case where the number…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-24 Shota Horiguchi , Shinji Watanabe , Paola Garcia , Yawen Xue , Yuki Takashima , Yohei Kawaguchi

End-to-end automatic speech recognition (E2E ASR) systems have significantly improved speech recognition through training on extensive datasets. Despite these advancements, they still struggle to accurately recognize domain specific words,…

Computation and Language · Computer Science 2024-07-26 Jiwon Suh , Injae Na , Woohwan Jung

Generalized Category Discovery (GCD) is a crucial task that aims to recognize both known and novel categories from a set of unlabeled data by utilizing a few labeled data with only known categories. Due to the lack of supervision and…

Computation and Language · Computer Science 2024-05-28 Wenbin An , Wenkai Shi , Feng Tian , Haonan Lin , QianYing Wang , Yaqiang Wu , Mingxiang Cai , Luyan Wang , Yan Chen , Haiping Zhu , Ping Chen

Despite having hundreds of millions of speakers, Chinese dialects lag behind Mandarin in speech and language technologies. Most varieties are primarily spoken, making dialect-to-Mandarin speech-LLMs (large language models) more practical…

Computation and Language · Computer Science 2026-01-13 Kalvin Chang , Yiwen Shao , Jiahong Li , Dong Yu

This work presents a novel approach for speaker diarization to leverage lexical information provided by automatic speech recognition. We propose a speaker diarization system that can incorporate word-level speaker turn probabilities with…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-16 Tae Jin Park , Kyu J. Han , Jing Huang , Xiaodong He , Bowen Zhou , Panayiotis Georgiou , Shrikanth Narayanan

Speaker representation learning is crucial for voice recognition systems, with recent advances in self-supervised approaches reducing dependency on labeled data. Current two-stage iterative frameworks, while effective, suffer from…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-03 Danwei Cai , Zexin Cai , Ze Li , Ming Li

In real-world applications, automatic speech recognition (ASR) systems must handle overlapping speech from multiple speakers and recognize rare words like technical terms. Traditional methods address multi-talker ASR and contextual biasing…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-17 Jiajun He , Naoki Sawada , Koichi Miyazaki , Tomoki Toda

This paper investigates the utilization of an end-to-end diarization model as post-processing of conventional clustering-based diarization. Clustering-based diarization methods partition frames into clusters of the number of speakers; thus,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-12-24 Shota Horiguchi , Paola Garcia , Yusuke Fujita , Shinji Watanabe , Kenji Nagamatsu

Speaker diarization remains challenging due to the need for structured speaker representations, efficient modeling, and robustness to varying conditions. We propose a performant, compact diarization framework that integrates conformer…

Sound · Computer Science 2025-06-16 David Palzer , Matthew Maciejewski , Eric Fosler-Lussier

Recent works have shown that Deep Recurrent Neural Networks using the LSTM architecture can achieve strong single-channel speech enhancement by estimating time-frequency masks. However, these models do not naturally generalize to…

Sound · Computer Science 2020-12-04 Felix Grezes , Zhaoheng Ni , Viet Anh Trinh , Michael Mandel

Spatial clustering techniques can achieve significant multi-channel noise reduction across relatively arbitrary microphone configurations, but have difficulty incorporating a detailed speech/noise model. In contrast, LSTM neural networks…

Sound · Computer Science 2020-12-07 Zhaoheng Ni , Felix Grezes , Viet Anh Trinh , Michael I. Mandel