Abstract
This paper presents a novel approach for speaker recognition in narrowband FM (NBFM) radio communication systems, exploiting raw in-phase and quadrature (IQ) signals from the receiver instead of using demodulated audio. The solution to the user validation problem in critical public safety systems is solved with a convolutional neural network architecture that classifies speakers based on spectro-temporal features extracted from the IQ components from the modulated signal. The results are encouraging, with the solution achieving an accuracy of 96.20 percent for the spectrogram-based model and 96.75 percent for the Mel frequency cepstral coefficients (MFCC) based model in high signal-to-noise (SNR) scenarios.
| Translated title of the contribution | Un sistema de reconocimiento de altavoces convolucional para NBFM modulado |
|---|---|
| Original language | English |
| Title of host publication | 2025 IEEE 7th International Conference on BioInspired Processing (BIP) |
| Publisher | IEEE |
| Pages | 1-6 |
| Number of pages | 6 |
| DOIs | |
| State | Published - 3 Dec 2025 |
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