Evaluating Multichannel Speech Enhancement Algorithms at the Phoneme Scale Across Genders

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Hauptverfasser: Monir, Nasser-Eddine, Magron, Paul, Serizel, Romain
Format: Preprint
Veröffentlicht: 2025
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author Monir, Nasser-Eddine
Magron, Paul
Serizel, Romain
author_facet Monir, Nasser-Eddine
Magron, Paul
Serizel, Romain
contents Multichannel speech enhancement algorithms are essential for improving the intelligibility of speech signals in noisy environments. These algorithms are usually evaluated at the utterance level, but this approach overlooks the disparities in acoustic characteristics that are observed in different phoneme categories and between male and female speakers. In this paper, we investigate the impact of gender and phonetic content on speech enhancement algorithms. We motivate this approach by outlining phoneme- and gender-specific spectral features. Our experiments reveal that while utterance-level differences between genders are minimal, significant variations emerge at the phoneme level. Results show that the tested algorithms better reduce interference with fewer artifacts on female speech, particularly in plosives, fricatives, and vowels. Additionally, they demonstrate greater performance for female speech in terms of perceptual and speech recognition metrics.
format Preprint
id arxiv_https___arxiv_org_abs_2506_18691
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Evaluating Multichannel Speech Enhancement Algorithms at the Phoneme Scale Across Genders
Monir, Nasser-Eddine
Magron, Paul
Serizel, Romain
Sound
Audio and Speech Processing
Multichannel speech enhancement algorithms are essential for improving the intelligibility of speech signals in noisy environments. These algorithms are usually evaluated at the utterance level, but this approach overlooks the disparities in acoustic characteristics that are observed in different phoneme categories and between male and female speakers. In this paper, we investigate the impact of gender and phonetic content on speech enhancement algorithms. We motivate this approach by outlining phoneme- and gender-specific spectral features. Our experiments reveal that while utterance-level differences between genders are minimal, significant variations emerge at the phoneme level. Results show that the tested algorithms better reduce interference with fewer artifacts on female speech, particularly in plosives, fricatives, and vowels. Additionally, they demonstrate greater performance for female speech in terms of perceptual and speech recognition metrics.
title Evaluating Multichannel Speech Enhancement Algorithms at the Phoneme Scale Across Genders
topic Sound
Audio and Speech Processing
url https://arxiv.org/abs/2506.18691