AQUA-Bench: Beyond Finding Answers to Knowing When There Are None in Audio Question Answering
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Abstract (arXiv)
Recent advances in audio-aware large language models have shown strong performance on audio question answering. However, existing benchmarks mainly cover answerable questions and overlook the challenge of unanswerable ones, where no reliable answer can be inferred from the audio. Such cases are common in real-world settings, where questions may be misleading, ill-posed, or incompatible with the information. To address this gap, we present AQUA-Bench, a benchmark for Audio Question Unanswerability Assessment. It systematically evaluates three scenarios: Absent Answer Detection (the correct option is missing), Incompatible Answer Set Detection (choices are categorically mismatched with the question), and Incompatible Audio Question Detection (the question is irrelevant or lacks sufficient grounding in the audio). By assessing these cases, AQUA-Bench offers a rigorous measure of model reliability and promotes the development of audio-language systems that are more robust and trustworthy. Our experiments suggest that while models excel on standard answerable tasks, they often face notable challenges with unanswerable ones, pointing to a blind spot in current audio-language understanding.
Key facts. Cited by 6 papers in the map (data through 14 Oct 2026). Builds on 48 of its 60 references that are in the map. First posted on arXiv 18 Jan 2026.
Builds on
48 of 60 references.
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Built on by
Citing papers per year: 2026: 6.
6 papers.
- 2026AQAScore: Evaluating Semantic Alignment in Text-to-Audio Generation via Audio Question Answeringcited by 8
- 2026Walking Through Uncertainty: An Empirical Study of Uncertainty Estimation for Audio-Aware Large Language Modelscited by 4
- 2026The Sound of Absence: Audio-Language Embedding Models Struggle with Negationcited by 1
- 2026Tracing Audio Grounding and Answer Selection in Audio LLMscited by 1
- 2026Improving Text-to-Audio Instruction Following via Fine-Grained Feedback from Audio-Aware Large Language Modelscited by 0
- 2026Broadening Uncertainty Estimation for Audio Question Answering Across Methods, Formats, and Inputscited by 0
- 2026Broadening Uncertainty Estimation for Audio Question Answering Across Methods, Formats, and Inputs24 Sep 2026
- 2026Tracing Audio Grounding and Answer Selection in Audio LLMs4 Sep 2026
- 2026Improving Text-to-Audio Instruction Following via Fine-Grained Feedback from Audio-Aware Large Language Models15 Jul 2026
- 2026The Sound of Absence: Audio-Language Embedding Models Struggle with Negation14 Jul 2026
- 2026Walking Through Uncertainty: An Empirical Study of Uncertainty Estimation for Audio-Aware Large Language Models28 Apr 2026
- 2026AQAScore: Evaluating Semantic Alignment in Text-to-Audio Generation via Audio Question Answering21 Jan 2026