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Xavier Alameda-Pineda

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#artificial intelligence Preprint Sep 2026

GLaS-JEPA: Gaussian-Regularized Speech SSL without Engineered Prediction Targets

GLaS-JEPA is presented, a framework that directly predicts the current encoder's continuous representations at masked positions, without contrastive learning, discrete targets, or separate EMA target encoders, and prevents representation collapse using SIGReg representation-space regularization.

G. Botté, Séverin Baroudi, Samir Sadok et al. · 0 citations
#machine learning Preprint Aug 2026

EMODY Flow: Emotion-Aware Audio-Driven Full-Body Motion Generation

This work presents EMODY Flow, a lightweight flow-matching framework that attaches to a frozen Qwen-3 Omni model and reuses its internal Mimi audio-codecs to condition two parallel DiT generators - one for SMPL-X body pose, one for FLAME facial expressions.

H. Agarwal, Xavier Alameda-Pineda, Olivier Perrotin · 0 citations
#artificial intelligence Preprint Sep 2026

Test-time adaptation for speech enhancement with an autoregressive speech prior

Test-time adaptation (TTA) offers a promising direction for improving speech enhancement models under mismatched acoustic conditions, without requiring access to labeled target data. In this work, we propose a single-utterance TTA method that regularizes a pretrained speech enhancement model using an autoregressive pri...

S. Kammoun, Simon Leglaive, Xavier Alameda-Pineda et al. · 1 citation
Jul 2026

InsideSSL: Understanding Self-Supervised Speech Representations using a Model-Centric Perspective

This work establishes a task-agnostic analysis from three intrinsic per-layer perspectives: compression, geometry, and robustness to perturbations, and introduces the cross-layer Generative Compatibility Matrix (GCM) to evaluate functional transferability.

Samir Sadok, Xavier Alameda-Pineda · 1 citation

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