arXiv Open Access 2025

On the Contribution of Lexical Features to Speech Emotion Recognition

David Combei

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Abstrak

Although paralinguistic cues are often considered the primary drivers of speech emotion recognition (SER), we investigate the role of lexical content extracted from speech and show that it can achieve competitive and in some cases higher performance compared to acoustic models. On the MELD dataset, our lexical-based approach obtains a weighted F1-score (WF1) of 51.5%, compared to 49.3% for an acoustic-only pipeline with a larger parameter count. Furthermore, we analyze different self-supervised (SSL) speech and text representations, conduct a layer-wise study of transformer-based encoders, and evaluate the effect of audio denoising.

Topik & Kata Kunci

eess.AS cs.CL cs.SD

Penulis (1)

David Combei

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APA MLA BibTeX

Combei, D. (2025). On the Contribution of Lexical Features to Speech Emotion Recognition. https://arxiv.org/abs/2509.05634

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Informasi Jurnal

Tahun Terbit: 2025
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓