Search Results for author: Kenji Nagamatsu

Found 17 papers, 6 papers with code

Online Streaming End-to-End Neural Diarization Handling Overlapping Speech and Flexible Numbers of Speakers

no code implementations21 Jan 2021 Yawen Xue, Shota Horiguchi, Yusuke Fujita, Yuki Takashima, Shinji Watanabe, Paola Garcia, Kenji Nagamatsu

We propose a streaming diarization method based on an end-to-end neural diarization (EEND) model, which handles flexible numbers of speakers and overlapping speech.

Speaker Diarization Sound Audio and Speech Processing

End-to-End Speaker Diarization as Post-Processing

no code implementations18 Dec 2020 Shota Horiguchi, Paola Garcia, Yusuke Fujita, Shinji Watanabe, Kenji Nagamatsu

Clustering-based diarization methods partition frames into clusters of the number of speakers; thus, they typically cannot handle overlapping speech because each frame is assigned to one speaker.

Clustering Multi-Label Classification +2

Block-Online Guided Source Separation

no code implementations16 Nov 2020 Shota Horiguchi, Yusuke Fujita, Kenji Nagamatsu

It is also a problem that the offline GSS is an utterance-wise algorithm so that it produces latency according to the length of the utterance.

Speech Separation

Utterance-Wise Meeting Transcription System Using Asynchronous Distributed Microphones

no code implementations31 Jul 2020 Shota Horiguchi, Yusuke Fujita, Kenji Nagamatsu

We also showed that our framework achieved CER of 21. 8 %, which is only 2. 1 percentage points higher than the CER in headset microphone-based transcription.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +4

Online End-to-End Neural Diarization with Speaker-Tracing Buffer

no code implementations4 Jun 2020 Yawen Xue, Shota Horiguchi, Yusuke Fujita, Shinji Watanabe, Kenji Nagamatsu

This paper proposes a novel online speaker diarization algorithm based on a fully supervised self-attention mechanism (SA-EEND).

speaker-diarization Speaker Diarization

End-to-End Neural Diarization: Reformulating Speaker Diarization as Simple Multi-label Classification

1 code implementation24 Feb 2020 Yusuke Fujita, Shinji Watanabe, Shota Horiguchi, Yawen Xue, Kenji Nagamatsu

However, the clustering-based approach has a number of problems; i. e., (i) it is not optimized to minimize diarization errors directly, (ii) it cannot handle speaker overlaps correctly, and (iii) it has trouble adapting their speaker embedding models to real audio recordings with speaker overlaps.

Clustering General Classification +3

End-to-End Neural Speaker Diarization with Permutation-Free Objectives

1 code implementation12 Sep 2019 Yusuke Fujita, Naoyuki Kanda, Shota Horiguchi, Kenji Nagamatsu, Shinji Watanabe

To realize such a model, we formulate the speaker diarization problem as a multi-label classification problem, and introduces a permutation-free objective function to directly minimize diarization errors without being suffered from the speaker-label permutation problem.

Clustering Domain Adaptation +3

Cannot find the paper you are looking for? You can Submit a new open access paper.