SpeechIQ: Speech Intelligence Quotient Across Cognitive Levels in Voice Understanding Large Language Models

• URL: http://arxiv.org/abs/2507.19361v1
• Date: Fri, 25 Jul 2025 15:12:06 GMT
• Title: SpeechIQ: Speech Intelligence Quotient Across Cognitive Levels in Voice Understanding Large Language Models
• Authors: Zhen Wan, Chao-Han Huck Yang, Yahan Yu, Jinchuan Tian, Sheng Li, Ke Hu, Zhehuai Chen, Shinji Watanabe, Fei Cheng, Chenhui Chu, Sadao Kurohashi,
• Abstract summary: Speech-based Intelligence Quotient (SIQ) is a new form of human cognition-inspired evaluation pipeline for voice understanding large language models.<n>Our framework represents a first-of-its-kind intelligence examination that bridges cognitive principles with voice-oriented benchmarks.
• Score: 76.07833875692722
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: We introduce Speech-based Intelligence Quotient (SIQ) as a new form of human cognition-inspired evaluation pipeline for voice understanding large language models, LLM Voice, designed to assess their voice understanding ability. Moving beyond popular voice understanding metrics such as word error rate (WER), SIQ examines LLM Voice across three cognitive levels motivated by Bloom's Taxonomy: (1) Remembering (i.e., WER for verbatim accuracy); (2) Understanding (i.e., similarity of LLM's interpretations); and (3) Application (i.e., QA accuracy for simulating downstream tasks). We demonstrate that SIQ not only quantifies voice understanding abilities but also provides unified comparisons between cascaded methods (e.g., ASR LLM) and end-to-end models, identifies annotation errors in existing benchmarks, and detects hallucinations in LLM Voice. Our framework represents a first-of-its-kind intelligence examination that bridges cognitive principles with voice-oriented benchmarks, while exposing overlooked challenges in multi-modal training.

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