activity
20232026
most citedSpeech Rhythm-Based Speaker Embeddings Extraction from Phonemes and Phoneme Duration for Multi-Speaker Speech Synthesis

2 citations · 3 across the 15 of their papers we have counts for

collaborators

15 papers

cs.CL2026

M3-DuplexBench: A Multi-Turn, Multilingual, Multidomain Benchmark for Full-Duplex Spoken Dialogue Models

Ryo Fukuda, Atsushi Ando, Hiroki Kanagawa +4

Full-duplex spoken dialogue systems (FDSDSs) can listen while speaking, enabling natural conversational behaviors such as smooth turn-taking, backchannel handling, and user barge-i…

cs.CL2026

Evaluating Large Language Models Abilities for Addressee, Turn-change, and Next Speaker Prediction in Meetings

Ryo Fukuda, Takatomo Kano, Siddhant Arora +7

We investigate turn-taking in multimodal multi-party conversations using large language models (LLMs). We construct an evaluation framework for three tasks: addressee detection, tu…

eess.AS2026

Tight Boundary Prediction in Speaker Diarization Using Causal-Anticausal Consistency

Shota Horiguchi, Marc Delcroix, Naohiro Tawara +2

Multi-talker conversational automatic speech recognition data are often used to train speaker diarization models. Because such data prioritize semantic continuity, pauses and bound…

eess.AS2025

Can We Really Repurpose Multi-Speaker ASR Corpus for Speaker Diarization?

Shota Horiguchi, Naohiro Tawara, Takanori Ashihara +2

Neural speaker diarization is widely used for overlap-aware speaker diarization, but it requires large multi-speaker datasets for training. To meet this data requirement, large dat…

eess.AS2025

Mitigating Non-Target Speaker Bias in Guided Speaker Embedding

Shota Horiguchi, Takanori Ashihara, Marc Delcroix +2

Obtaining high-quality speaker embeddings in multi-speaker conditions is crucial for many applications. A recently proposed guided speaker embedding framework, which utilizes speec…

cs.SD2025

Dissecting the Segmentation Model of End-to-End Diarization with Vector Clustering

Alexis Plaquet, Naohiro Tawara, Marc Delcroix +4

End-to-End Neural Diarization with Vector Clustering is a powerful and practical approach to perform Speaker Diarization. Multiple enhancements have been proposed for the segmentat…

eess.AS2025

Pretraining Multi-Speaker Identification for Neural Speaker Diarization

Shota Horiguchi, Atsushi Ando, Marc Delcroix +1

End-to-end speaker diarization enables accurate overlap-aware diarization by jointly estimating multiple speakers' speech activities in parallel. This approach is data-hungry, requ…

eess.AS2025

Microphone Array Geometry Independent Multi-Talker Distant ASR: NTT System for the DASR Task of the CHiME-8 Challenge

Naoyuki Kamo, Naohiro Tawara, Atsushi Ando +15

In this paper, we introduce a multi-talker distant automatic speech recognition (DASR) system we designed for the DASR task 1 of the CHiME-8 challenge. Our system performs speaker…

cs.SD2024

Mamba-based Segmentation Model for Speaker Diarization

Alexis Plaquet, Naohiro Tawara, Marc Delcroix +3

Mamba is a newly proposed architecture which behaves like a recurrent neural network (RNN) with attention-like capabilities. These properties are promising for speaker diarization,…

eess.AS2024★ 1 cited

Guided Speaker Embedding

Shota Horiguchi, Takafumi Moriya, Atsushi Ando +4

This paper proposes a guided speaker embedding extraction system, which extracts speaker embeddings of the target speaker using speech activities of target and interference speaker…

eess.AS2024

NTT Multi-Speaker ASR System for the DASR Task of CHiME-8 Challenge

Naoyuki Kamo, Naohiro Tawara, Atsushi Ando +15

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-en…

eess.AS2024

Recursive Attentive Pooling for Extracting Speaker Embeddings from Multi-Speaker Recordings

Shota Horiguchi, Atsushi Ando, Takafumi Moriya +4

This paper proposes a method for extracting speaker embedding for each speaker from a variable-length recording containing multiple speakers. Speaker embeddings are crucial not onl…

eess.AS2024

SpeakerBeam-SS: Real-time Target Speaker Extraction with Lightweight Conv-TasNet and State Space Modeling

Hiroshi Sato, Takafumi Moriya, Masato Mimura +6

Real-time target speaker extraction (TSE) is intended to extract the desired speaker's voice from the observed mixture of multiple speakers in a streaming manner. Implementing real…

cs.SD2024★ 2 cited

Speech Rhythm-Based Speaker Embeddings Extraction from Phonemes and Phoneme Duration for Multi-Speaker Speech Synthesis

Kenichi Fujita, Atsushi Ando, Yusuke Ijima

This paper proposes a speech rhythm-based method for speaker embeddings to model phoneme duration using a few utterances by the target speaker. Speech rhythm is one of the essentia…

eess.AS2023

NTT speaker diarization system for CHiME-7: multi-domain, multi-microphone End-to-end and vector clustering diarization

Naohiro Tawara, Marc Delcroix, Atsushi Ando +1

This paper details our speaker diarization system designed for multi-domain, multi-microphone casual conversations. The proposed diarization pipeline uses weighted prediction error…