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Large Audio-Language Models (LALMs) have demonstrated remarkable performance in end-to-end speaker diarization and recognition. However, their speaker discriminability remains limited due to the scarcity of large-scale conversational data…

The front-end module in multi-channel automatic speech recognition (ASR) systems mainly use microphone array techniques to produce enhanced signals in noisy conditions with reverberation and echos. Recently, neural network (NN) based…

Sound · Computer Science 2020-11-19 Yuxiang Kong , Jian Wu , Quandong Wang , Peng Gao , Weiji Zhuang , Yujun Wang , Lei Xie

Multi-speaker automatic speech recognition (ASR) aims to transcribe conversational speech involving multiple speakers, requiring the model to capture not only what was said, but also who said it and sometimes when it was spoken. Recent…

Audio and Speech Processing · Electrical Eng. & Systems 2026-04-27 Li Li , Ming Cheng , Weixin Zhu , Yannan Wang , Juan Liu , Ming Li

In this work, we describe a novel method of training an embedding-matching word-level connectionist temporal classification (CTC) automatic speech recognizer (ASR) such that it directly produces word start times and durations, required by…

Computation and Language · Computer Science 2023-06-21 Woojay Jeon

This paper presents a novel framework for multi-talker automatic speech recognition without the need for auxiliary information. Serialized Output Training (SOT), a widely used approach, suffers from recognition errors due to speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-10 Asahi Sakuma , Hiroaki Sato , Ryuga Sugano , Tadashi Kumano , Yoshihiko Kawai , Tetsuji Ogawa

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

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

Utilizing air-traffic control (ATC) data for downstream natural-language processing tasks requires preprocessing steps. Key steps are the transcription of the data via automatic speech recognition (ASR) and speaker diarization, respectively…

Computation and Language · Computer Science 2024-06-21 Alexander Blatt , Aravind Krishnan , Dietrich Klakow

Speaker diarization aims to segment audio recordings into regions corresponding to individual speakers. Although unsupervised speaker diarization is inherently challenging, the prospect of identifying speaker regions without pretraining or…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-30 Nikhil Raghav , Avisek Gupta , Swagatam Das , Md Sahidullah

We present a distant automatic speech recognition (DASR) system developed for the CHiME-8 DASR track. It consists of a diarization first pipeline. For diarization, we use end-to-end diarization with vector clustering (EEND-VC) followed by…

Speaker identification typically involves three stages. First, a front-end speaker embedding model is trained to embed utterance and speaker profiles. Second, a scoring function is applied between a runtime utterance and each speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-22 Zhenning Tan , Yuguang Yang , Eunjung Han , Andreas Stolcke

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 automatic speech processing systems, speaker diarization is a crucial front-end component to separate segments from different speakers. Inspired by the recent success of deep neural networks (DNNs) in semantic inferencing, triplet…

Audio and Speech Processing · Electrical Eng. & Systems 2018-08-07 Huan Song , Megan Willi , Jayaraman J. Thiagarajan , Visar Berisha , Andreas Spanias

Self-supervised learning (SSL) methods which learn representations of data without explicit supervision have gained popularity in speech-processing tasks, particularly for single-talker applications. However, these models often have…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-02 Zili Huang , Desh Raj , Paola García , Sanjeev Khudanpur

Multi-speaker speech recognition of unsegmented recordings has diverse applications such as meeting transcription and automatic subtitle generation. With technical advances in systems dealing with speech separation, speaker diarization, and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-05 Desh Raj , Pavel Denisov , Zhuo Chen , Hakan Erdogan , Zili Huang , Maokui He , Shinji Watanabe , Jun Du , Takuya Yoshioka , Yi Luo , Naoyuki Kanda , Jinyu Li , Scott Wisdom , John R. Hershey

In this paper, we present a novel speaker diarization system for streaming on-device applications. In this system, we use a transformer transducer to detect the speaker turns, represent each speaker turn by a speaker embedding, then cluster…

Audio and Speech Processing · Electrical Eng. & Systems 2022-01-26 Wei Xia , Han Lu , Quan Wang , Anshuman Tripathi , Yiling Huang , Ignacio Lopez Moreno , Hasim Sak

Accurate transcription and speaker diarization of child-adult spoken interactions are crucial for developmental and clinical research. However, manual annotation is time-consuming and challenging to scale. Existing automated systems…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-27 Anfeng Xu , Tiantian Feng , Somer Bishop , Catherine Lord , Shrikanth Narayanan

This report presents the TCG CREST system description for Track 1 (Speaker Diarization) of the DISPLACE-M challenge, focusing on naturalistic medical conversations in noisy rural-healthcare scenarios. Our study evaluates the impact of…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-11 Nikhil Raghav , Md Sahidullah

In this work, we propose deep latent space clustering for speaker diarization using generative adversarial network (GAN) backprojection with the help of an encoder network. The proposed diarization system is trained jointly with GAN loss,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-28 Monisankha Pal , Manoj Kumar , Raghuveer Peri , Tae Jin Park , So Hyun Kim , Catherine Lord , Somer Bishop , Shrikanth Narayanan

The performance of most speaker diarization systems with x-vector embeddings is both vulnerable to noisy environments and lacks domain robustness. Earlier work on speaker diarization using generative adversarial network (GAN) with an…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-21 Monisankha Pal , Manoj Kumar , Raghuveer Peri , Tae Jin Park , So Hyun Kim , Catherine Lord , Somer Bishop , Shrikanth Narayanan