3 papers
eess.SP2025
On the Invariance of Cross-Correlation Peak Positions Under Monotonic Signal Transformations, with Application to Fast Time Difference Estimation
Natsuki Ueno, Ryotaro Sato, Nobutaka Ono
We present a theorem concerning the invariance of cross-correlation peak positions. This theoretical result provides the foundation for a new method for time difference estimation…
eess.AS2025
Sound Field Estimation: Theories and Applications
Natsuki Ueno, Shoichi Koyama
The spatial information of sound plays a crucial role in various situations, ranging from daily activities to advanced engineering technologies. To fully utilize its potential, num…
eess.AS2025
Mel-Spectrogram Inversion via Alternating Direction Method of Multipliers
Yoshiki Masuyama, Natsuki Ueno, Nobutaka Ono
Signal reconstruction from its mel-spectrogram is known as mel-spectrogram inversion and has many applications, including speech and foley sound synthesis. In this paper, we propos…