Synthetic Speech Source Tracing using Metric Learning

• URL: http://arxiv.org/abs/2506.02590v1
• Date: Tue, 03 Jun 2025 08:12:15 GMT
• Title: Synthetic Speech Source Tracing using Metric Learning
• Authors: Dimitrios Koutsianos, Stavros Zacharopoulos, Yannis Panagakis, Themos Stafylakis,
• Abstract summary: This paper addresses source tracing in synthetic speech-identifying generative systems behind manipulated audio via speaker recognition-inspired pipelines.<n>We evaluate two approaches: classification-based and metric-learning.<n>The results show that ResNet achieves competitive performance with the metric learning approach, matching and even exceeding SSL-based systems.
• Score: 18.16033398335838
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper addresses source tracing in synthetic speech-identifying generative systems behind manipulated audio via speaker recognition-inspired pipelines. While prior work focuses on spoofing detection, source tracing lacks robust solutions. We evaluate two approaches: classification-based and metric-learning. We tested our methods on the MLAADv5 benchmark using ResNet and self-supervised learning (SSL) backbones. The results show that ResNet achieves competitive performance with the metric learning approach, matching and even exceeding SSL-based systems. Our work demonstrates ResNet's viability for source tracing while underscoring the need to optimize SSL representations for this task. Our work bridges speaker recognition methodologies with audio forensic challenges, offering new directions for combating synthetic media manipulation.

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