Acoustic Non-Stationarity Objective Assessment with Hard Label Criteria for Supervised Learning Models

Guilherme Zucatelli; Ricardo Barioni; Gabriela Dantas

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arXiv · 2508.06405

Acoustic Non-Stationarity Objective Assessment with Hard Label Criteria for Supervised Learning Models

Guilherme Zucatelli·Ricardo Barioni·Gabriela Dantas

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Abstract

Objective non-stationarity measures are resource intensive and impose critical limitations for real-time processing solutions. In this paper, a novel Hard Label Criteria (HLC) algorithm is proposed to generate a global non-stationarity label for acoustic signals, enabling supervised learning strategies to be trained as stationarity estimators. The HLC is first evaluated on state-of-the-art general-purpose acoustic models, demonstrating that these models capture stationarity information. Furthermore, the first-of-its-kind HLC-based Network for Acoustic Non-Stationarity Assessment (NANSA) is proposed. NANSA models outperform competing approaches, achieving up to 99% classification accuracy, while solving the computational infeasibility of traditional objective measures.

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BibTeX RIS

Guilherme Zucatelli, Ricardo Barioni, Gabriela Dantas. 2025-08-08. Acoustic Non-Stationarity Objective Assessment with Hard Label Criteria for Supervised Learning Models. https://arxiv.org/abs/2508.06405

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