Evaluating Hallucinations in Audio-Visual Multimodal LLMs with Spoken Queries under Diverse Acoustic Conditions

Fuente: arXiv
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Autori principali: Park, Hansol, Ahn, Hoseong, Moon, Junwon, Lee, Yejin, Shim, Kyuhong
Natura: Preprint
Pubblicazione: 2025
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author Park, Hansol
Ahn, Hoseong
Moon, Junwon
Lee, Yejin
Shim, Kyuhong
author_facet Park, Hansol
Ahn, Hoseong
Moon, Junwon
Lee, Yejin
Shim, Kyuhong
contents Hallucinations in multimodal models have been extensively studied using benchmarks that probe reliability in image-text query settings. However, the effect of spoken queries on multimodal hallucinations remains largely unexplored, despite the growing role of voice interfaces. In this paper, we introduce a systematic pipeline that converts existing multimodal hallucination benchmarks into spoken-query versions while preserving the original tasks and labels. We instantiate this pipeline on RePOPE and release RePOPE-Spk, where all queries are provided as spoken audio under diverse input conditions. Experimental results show that hallucinations escalate when queries are spoken rather than written: error rates increase by 3-6% with clean speech and by up to 30% under environmental noise. Furthermore, many-shot prompting and chain-of-thought reasoning provide only partial mitigation. Our findings motivate new directions for building reliable voice interface systems and evaluations.
format Preprint
id arxiv_https___arxiv_org_abs_2510_08581
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Evaluating Hallucinations in Audio-Visual Multimodal LLMs with Spoken Queries under Diverse Acoustic Conditions
Park, Hansol
Ahn, Hoseong
Moon, Junwon
Lee, Yejin
Shim, Kyuhong
Sound
Artificial Intelligence
Audio and Speech Processing
Hallucinations in multimodal models have been extensively studied using benchmarks that probe reliability in image-text query settings. However, the effect of spoken queries on multimodal hallucinations remains largely unexplored, despite the growing role of voice interfaces. In this paper, we introduce a systematic pipeline that converts existing multimodal hallucination benchmarks into spoken-query versions while preserving the original tasks and labels. We instantiate this pipeline on RePOPE and release RePOPE-Spk, where all queries are provided as spoken audio under diverse input conditions. Experimental results show that hallucinations escalate when queries are spoken rather than written: error rates increase by 3-6% with clean speech and by up to 30% under environmental noise. Furthermore, many-shot prompting and chain-of-thought reasoning provide only partial mitigation. Our findings motivate new directions for building reliable voice interface systems and evaluations.
title Evaluating Hallucinations in Audio-Visual Multimodal LLMs with Spoken Queries under Diverse Acoustic Conditions
topic Sound
Artificial Intelligence
Audio and Speech Processing
url https://arxiv.org/abs/2510.08581