3 papers
eess.AS2025
Incremental Averaging Method to Improve Graph-Based Time-Difference-of-Arrival Estimation
Klaus Brümann, Kouei Yamaoka, Nobutaka Ono +1
Estimating the position of a speech source based on time-differences-of-arrival (TDOAs) is often adversely affected by background noise and reverberation. A popular method to estim…
eess.AS2022
Joint Optimization of Sampling Rate Offsets Based on Entire Signal Relationship Among Distributed Microphones
Yoshiki Masuyama, Kouei Yamaoka, Nobutaka Ono
In this paper, we propose to simultaneously estimate all the sampling rate offsets (SROs) of multiple devices. In a distributed microphone array, the SRO is inevitable, which deter…
eess.SP2022
Estimation of Consistent Time Delays in Subsample via Auxiliary-Function-Based Iterative Updates
Kouei Yamaoka, Yukoh Wakabayashi, Nobutaka Ono
In this paper, we propose a new algorithm for the estimation of multiple time delays (TDs). Since a TD is a fundamental spatial cue for sensor array signal processing techniques, m…