7 citations · 16 across the 10 of their papers we have counts for
10 papers
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…
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…
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…
Physics-Informed Machine Learning For Sound Field Estimation
Shoichi Koyama, Juliano G. C. Ribeiro, Tomohiko Nakamura +2
The area of study concerning the estimation of spatial sound, i.e., the distribution of a physical quantity of sound such as acoustic pressure, is called sound field estimation, wh…
Signal Reconstruction from Mel-spectrogram Based on Bi-level Consistency of Full-band Magnitude and Phase
Yoshiki Masuyama, Natsuki Ueno, Nobutaka Ono
We propose an optimization-based method for reconstructing a time-domain signal from a low-dimensional spectral representation such as a mel-spectrogram. Phase reconstruction has b…
Weighted Pressure and Mode Matching for Sound Field Reproduction: Theoretical and Experimental Comparisons
Shoichi Koyama, Keisuke Kimura, Natsuki Ueno
Two sound field reproduction methods, weighted pressure matching and weighted mode matching, are theoretically and experimentally compared. The weighted pressure and mode matching…
Mean-square-error-based secondary source placement in sound field synthesis with prior information on desired field
Keisuke Kimura, Shoichi Koyama, Natsuki Ueno +1
A method of optimizing secondary source placement in sound field synthesis is proposed. Such an optimization method will be useful when the allowable placement region and available…
Sound Field Reproduction With Weighted Mode Matching and Infinite-Dimensional Harmonic Analysis: An Experimental Evaluation
Shoichi Koyama, Keisuke Kimura, Natsuki Ueno
Sound field reproduction methods based on numerical optimization, which aim to minimize the error between synthesized and desired sound fields, are useful in many practical scenari…
Kernel Learning For Sound Field Estimation With L1 and L2 Regularizations
Ryosuke Horiuchi, Shoichi Koyama, Juliano G. C. Ribeiro +2
A method to estimate an acoustic field from discrete microphone measurements is proposed. A kernel-interpolation-based method using the kernel function formulated for sound field i…
MeshRIR: A Dataset of Room Impulse Responses on Meshed Grid Points For Evaluating Sound Field Analysis and Synthesis Methods
Shoichi Koyama, Tomoya Nishida, Keisuke Kimura +3
A new impulse response (IR) dataset called "MeshRIR" is introduced. Currently available datasets usually include IRs at an array of microphones from several source positions under…