Author

A. Politis

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Preprint Sep 2026

Few-Shot Calibration for Sim-to-Real Single-Channel Speaker Distance Estimation

Speaker distance estimators are trained almost exclusively on simulated room acoustics, because real recordings annotated with the true talker-to-microphone distance are scarce. We show that models trained this way transfer poorly. On three real corpora we evaluate, simply predicting the average distance of the corpus...

Michael Neri, A. Politis, Tuomas Virtanen · 0 citations

Preprint Aug 2026

Neural Array-Generic Direction-of-Arrival Estimation Exploiting Array Transfer Functions

Direction-of-arrival (DoA) estimation is a key component of multichannel audio processing, yet many deep learning approaches remain tied to the microphone arrays used during training and generalize poorly to unseen devices. This paper proposes an array-generic neural DoA estimation framework using measured or simulated...

Mikko Heikkinen, A. Politis, K. Drossos et al. · 1 citation