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20242026
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cs.SD2026

Audio Spotforming via Post-Filtering Using Cross-Array Non-target Estimates

Yuto Ishikawa, Li Li, Shogo Seki +1

Audio spotforming is a technique for extracting target speech from noisy mixtures by utilizing multiple microphone arrays. Conventional methods estimate a shared target speech comp…

cs.SD2025

Improving DF-Conformer Using Hydra For High-Fidelity Generative Speech Enhancement on Discrete Codec Token

Shogo Seki, Shaoxiang Dang, Li Li

The Dilated FAVOR Conformer (DF-Conformer) is an efficient variant of the Conformer architecture designed for speech enhancement (SE). It employs fast attention through positive or…

cs.SD2024

Audio Spotforming Using Nonnegative Tensor Factorization with Attractor-Based Regularization

Shoma Ayano, Li Li, Shogo Seki +1

Spotforming is a target-speaker extraction technique that uses multiple microphone arrays. This method applies beamforming (BF) to each microphone array, and the common components…

cs.SD2024

Improved Remixing Process for Domain Adaptation-Based Speech Enhancement by Mitigating Data Imbalance in Signal-to-Noise Ratio

Li Li, Shogo Seki

RemixIT and Remixed2Remixed are domain adaptation-based speech enhancement (DASE) methods that use a teacher model trained in full supervision to generate pseudo-paired data by rem…

cs.SD2023

Remixed2Remixed: Domain adaptation for speech enhancement by Noise2Noise learning with Remixing

Li Li, Shogo Seki

This paper proposes Remixed2Remixed, a domain adaptation method for speech enhancement, which adopts Noise2Noise (N2N) learning to adapt models trained on artificially generated (o…