Octant Spherical Harmonics Features for Source Localization using Artificial Intelligence based on Unified Learning Framework

P Dwivedi, G Routray, RM Hegde - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Recent advancements in artificial intelligence (AI) have shown potential solutions to acoustic
source localization in three-dimensional space. This paper proposes a new low-complex AI …

Long-term temporal audio source localization using sh-crnn

P Dwivedi, SB Hazare, G Routray… - … National Conference on …, 2023 - ieeexplore.ieee.org
Acoustic source localization in a noisy and reverberating environment is still a challenging
problem in signal processing. An improved technique has been developed herein exploring …

[HTML][HTML] Spherical harmonics domain-based approach for source localization in presence of directional interference

P Dwivedi, G Routray, RM Hegde - JASA Express Letters, 2022 - pubs.aip.org
This paper presents a learning-based method for source localization in the presence of
directional interference under reverberant and noisy conditions. The proposed method …

Robust DOA Estimation: Cross-Branch Fused Multi-stream Network with Feature Enhancement

Y Yan, Q Huang - Circuits, Systems, and Signal Processing, 2024 - Springer
Accurate direction of arrival (DOA) estimation is critical for many audio signal processing
tasks in microphone array applications. However, real-world environments pose …

[PDF][PDF] Innovative directional encoding in speech processing: leveraging spherical harmonics injection for multi-channel speech enhancement

J Pan, P Shen, H Zhang, X Zhang - … of the Thirty-Third International Joint …, 2024 - ijcai.org
Multi-channel speech enhancement leverages multiple microphones to extract target
speech signals amid background noise. Effectively utilizing directional cues is key for robust …

Improving Source Tracking Accuracy through Learning-Based Estimation Methods in SH Domain: A Comparative Study

P Dwivedi, G Routray, DK Jha… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Acoustic source tracking is significant across applications like surveillance,
teleconferencing, and robot audition, yet the complexity introduced by reverberation …

[PDF][PDF] Far-field source localization in spherical harmonics domain using acoustic intensity vector

P Dwivedi, G Routray, RM Hegde - 24th International Congress on …, 2022 - researchgate.net
Source localization in the presence of reverberation and a noisy environment is still a
challenging research problem and has various signal processing applications. This paper …

[PDF][PDF] Learning-based masking for reliable source localization interfered by undesired directional noise

P Dwivedi, G Routray, S Hazare… - Proc. Conv. Eur. Acoust …, 2023 - dael.euracoustics.org
It is incredibly challenging to simultaneously locate an acoustic source in a noisy,
reverberant environment and mitigates directional interference. The proposed study uses a …

Direction of arrival estimation using convolutional recurrent neural network with relative harmonic coefficients and triplet loss in noisy and reverberating environments

L Cattaneo - 2022 - politesi.polimi.it
The problem of source localization in noisy and reverberating envi-ronments is still an open
and challenging problem in the signal processing field. Typically, the identification of the so …