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Convention Paper Open Access

Confidently Wrong: Evaluating AudioSet-Trained Models Under Real-World Deployment

Authors: Garcia-Ballesteros, Marta; Naranjo-Alcazar, Javier; Grau-Haro, Jordi; Ribes-Serrano, Ruben; Zuccarello, Pedro

Convention Paper · Paper 10274 · May 2026

Abstract

Audio event-classification models trained on AudioSet are widely adopted and form a central component of the state of the art in machine listening, yet their behavior when deployed in complex, open acoustic environments remains largely unexplored. In this study, we evaluate several AudioSet-pretrained architecturesparticularly models from the PANNs family, including MobileNetV2, Wavegram LogMel CNN14, and the transformer-based PaSST modelwhen applied to a real operational scenario at the commercial Port of Valencia, Spain. We observed
a recurring but model-dependent behavior: the models frequently assigned relatively high probability to the class Music for non-musical industrial and transportation sounds. These events included train wheels squealing, motorcycle acceleration, emergency sirens, and reversing beepssound categories that are common in port logistics environments but acoustically different from music. By analyzing the probability distributions output by the models, we demonstrate that this erroneous Music activation is not limited to isolated cases but is observed across multiple
architectures, with varying intensity depending on the model and sound category. Our findings highlight limitations in the robustness and domain generalization of AudioSet-derived models and emphasize the need for targeted adaptation techniques when deploying them in real industrial settings.

Details

AES Convention
160
Paper number
10274
Publication date
May 28, 2026
Session subject
AI and Machine Learning in Audio
Affiliation
Instituto Tecnológico de Informática (ITI) Valencia; Instituto Tecnológico de Informática (ITI) Valencia; Instituto Tecnológico de Informática (ITI) Valencia; Instituto Tecnológico de Informática (ITI) Valencia; Instituto Tecnológico de Informática (ITI) Valencia (See document for exact affiliation information.)
Type
Convention Paper