2 citations · 6 across the 9 of their papers we have counts for
9 papers
Pretraining Conformer with ASR or ASV for Anti-Spoofing Countermeasure
Yikang Wang, Hiromitsu Nishizaki, Ming Li
Finding synthetic artifacts of spoofing data will help the anti-spoofing countermeasures (CMs) system discriminate between spoofed and real speech. The Conformer combines the best…
Low Pass Filtering and Bandwidth Extension for Robust Anti-spoofing Countermeasure Against Codec Variabilities
Yikang Wang, Xingming Wang, Hiromitsu Nishizaki +1
A reliable voice anti-spoofing countermeasure system needs to robustly protect automatic speaker verification (ASV) systems in various kinds of spoofing scenarios. However, the per…
Proceedings of the Dialogue Robot Competition 2022
Ryuichiro Higashinaka, Takashi Minato, Hiromitsu Nishizaki +1
The proceedings contain papers on the dialogue systems developed by the twelve teams participating in DRC2022, as well as an overview paper summarizing the competition.
Overview of Dialogue Robot Competition 2022
Takashi Minato, Ryuichiro Higashinaka, Kurima Sakai +3
Although many competitions have been held on dialogue systems in the past, no competition has been organized specifically for dialogue with humanoid robots. As the first such attem…
Frequency-Directional Attention Model for Multilingual Automatic Speech Recognition
Akihiro Dobashi, Chee Siang Leow, Hiromitsu Nishizaki
This paper proposes a model for transforming speech features using the frequency-directional attention model for End-to-End (E2E) automatic speech recognition. The idea is based on…
Combination of Time-domain, Frequency-domain, and Cepstral-domain Acoustic Features for Speech Commands Classification
Yikang Wang, Hiromitsu Nishizaki
In speech-related classification tasks, frequency-domain acoustic features such as logarithmic Mel-filter bank coefficients (FBANK) and cepstral-domain acoustic features such as Me…
Peer Collaborative Learning for Polyphonic Sound Event Detection
Hayato Endo, Hiromitsu Nishizaki
This paper describes that semi-supervised learning called peer collaborative learning (PCL) can be applied to the polyphonic sound event detection (PSED) task, which is one of the…
ExKaldi-RT: A Real-Time Automatic Speech Recognition Extension Toolkit of Kaldi
Yu Wang, Chee Siang Leow, Akio Kobayashi +2
This paper describes the ExKaldi-RT online automatic speech recognition (ASR) toolkit that is implemented based on the Kaldi ASR toolkit and Python language. ExKaldi-RT provides to…
Audio Classification of Bit-Representation Waveform
Masaki Okawa, Takuya Saito, Naoki Sawada +1
This study investigated the waveform representation for audio signal classification. Recently, many studies on audio waveform classification such as acoustic event detection and mu…