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Main Authors:	Giraldo, Jose, Peiró-Lilja, Alex, Zevallos, Rodolfo, España-Bonet, Cristina
Format:	Preprint
Published:	2026
Subjects:	Audio and Speech Processing
Online Access:	https://arxiv.org/abs/2602.05770
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author	Giraldo, Jose Peiró-Lilja, Alex Zevallos, Rodolfo España-Bonet, Cristina
author_facet	Giraldo, Jose Peiró-Lilja, Alex Zevallos, Rodolfo España-Bonet, Cristina
contents	We evaluate two non-autoregressive architectures, StyleTTS2 and F5-TTS, to address the spontaneous nature of in-the-wild speech. Our models utilize flexible duration modeling to improve prosodic naturalness. To handle acoustic noise, we implement a multi-stage enhancement pipeline using the Sidon model, which significantly outperforms standard Demucs in signal quality. Experimental results show that finetuning enhanced audios yields superior robustness, achieving up to 4.21 UTMOS and 3.47 DNSMOS. Furthermore, we analyze the impact of reference prompt quality and length on zero-shot synthesis performance, demonstrating the effectiveness of our approach for realistic speech generation.
format	Preprint
id	arxiv_https___arxiv_org_abs_2602_05770
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	Zero-Shot TTS With Enhanced Audio Prompts: Bsc Submission For The 2026 Wildspoof Challenge TTS Track Giraldo, Jose Peiró-Lilja, Alex Zevallos, Rodolfo España-Bonet, Cristina Audio and Speech Processing We evaluate two non-autoregressive architectures, StyleTTS2 and F5-TTS, to address the spontaneous nature of in-the-wild speech. Our models utilize flexible duration modeling to improve prosodic naturalness. To handle acoustic noise, we implement a multi-stage enhancement pipeline using the Sidon model, which significantly outperforms standard Demucs in signal quality. Experimental results show that finetuning enhanced audios yields superior robustness, achieving up to 4.21 UTMOS and 3.47 DNSMOS. Furthermore, we analyze the impact of reference prompt quality and length on zero-shot synthesis performance, demonstrating the effectiveness of our approach for realistic speech generation.
title	Zero-Shot TTS With Enhanced Audio Prompts: Bsc Submission For The 2026 Wildspoof Challenge TTS Track
topic	Audio and Speech Processing
url	https://arxiv.org/abs/2602.05770

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