VoiceBBQ: Investigating Effect of Content and Acoustics in Social Bias of Spoken Language Model

Fuente: arXiv
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Autores principales: Choi, Junhyuk, Oh, Ro-hoon, Seol, Jihwan, Kim, Bugeun
Formato: Preprint
Publicado: 2025
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author Choi, Junhyuk
Oh, Ro-hoon
Seol, Jihwan
Kim, Bugeun
author_facet Choi, Junhyuk
Oh, Ro-hoon
Seol, Jihwan
Kim, Bugeun
contents We introduce VoiceBBQ, a spoken extension of the BBQ (Bias Benchmark for Question Answering) - a dataset that measures social bias by presenting ambiguous or disambiguated contexts followed by questions that may elicit stereotypical responses. Due to the nature of speech, social bias in Spoken Language Models (SLMs) can emerge from two distinct sources: 1) content aspect and 2) acoustic aspect. The dataset converts every BBQ context into controlled voice conditions, enabling per-axis accuracy, bias, and consistency scores that remain comparable to the original text benchmark. Using VoiceBBQ, we evaluate two SLMs - LLaMA-Omni and Qwen2-Audio - and observe architectural contrasts: LLaMA-Omni resists acoustic bias while amplifying gender and accent bias, whereas Qwen2-Audio substantially dampens these cues while preserving content fidelity. VoiceBBQ thus provides a compact, drop-in testbed for jointly diagnosing content and acoustic bias across spoken language models.
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id arxiv_https___arxiv_org_abs_2509_21108
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publishDate 2025
record_format arxiv
spellingShingle VoiceBBQ: Investigating Effect of Content and Acoustics in Social Bias of Spoken Language Model
Choi, Junhyuk
Oh, Ro-hoon
Seol, Jihwan
Kim, Bugeun
Computation and Language
We introduce VoiceBBQ, a spoken extension of the BBQ (Bias Benchmark for Question Answering) - a dataset that measures social bias by presenting ambiguous or disambiguated contexts followed by questions that may elicit stereotypical responses. Due to the nature of speech, social bias in Spoken Language Models (SLMs) can emerge from two distinct sources: 1) content aspect and 2) acoustic aspect. The dataset converts every BBQ context into controlled voice conditions, enabling per-axis accuracy, bias, and consistency scores that remain comparable to the original text benchmark. Using VoiceBBQ, we evaluate two SLMs - LLaMA-Omni and Qwen2-Audio - and observe architectural contrasts: LLaMA-Omni resists acoustic bias while amplifying gender and accent bias, whereas Qwen2-Audio substantially dampens these cues while preserving content fidelity. VoiceBBQ thus provides a compact, drop-in testbed for jointly diagnosing content and acoustic bias across spoken language models.
title VoiceBBQ: Investigating Effect of Content and Acoustics in Social Bias of Spoken Language Model
topic Computation and Language
url https://arxiv.org/abs/2509.21108