2 papers
cs.SD2026
Prox-Friendly Log-Magnitude Prior on Complex-Valued Signal
Kazuki Matsumoto, Keidai Arai, Kohei Yatabe
The logarithmic transform is essential in audio signal processing since human auditory perception is approximately logarithmic with respect to magnitude. However, directly incorpor…
eess.SP2023
Versatile Time-Frequency Representations Realized by Convex Penalty on Magnitude Spectrogram
Keidai Arai, Koki Yamada, Kohei Yatabe
Sparse time-frequency (T-F) representations have been an important research topic for more than several decades. Among them, optimization-based methods (in particular, extensions o…