Audio Large Language Models Can Be Descriptive Speech Quality Evaluators

Fuente: arXiv
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Main Authors: Chen, Chen, Hu, Yuchen, Wang, Siyin, Wang, Helin, Chen, Zhehuai, Zhang, Chao, Yang, Chao-Han Huck, Chng, Eng Siong
Format: Preprint
Published: 2025
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_version_ 1866912270572847104
author Chen, Chen
Hu, Yuchen
Wang, Siyin
Wang, Helin
Chen, Zhehuai
Zhang, Chao
Yang, Chao-Han Huck
Chng, Eng Siong
author_facet Chen, Chen
Hu, Yuchen
Wang, Siyin
Wang, Helin
Chen, Zhehuai
Zhang, Chao
Yang, Chao-Han Huck
Chng, Eng Siong
contents An ideal multimodal agent should be aware of the quality of its input modalities. Recent advances have enabled large language models (LLMs) to incorporate auditory systems for handling various speech-related tasks. However, most audio LLMs remain unaware of the quality of the speech they process. This limitation arises because speech quality evaluation is typically excluded from multi-task training due to the lack of suitable datasets. To address this, we introduce the first natural language-based speech evaluation corpus, generated from authentic human ratings. In addition to the overall Mean Opinion Score (MOS), this corpus offers detailed analysis across multiple dimensions and identifies causes of quality degradation. It also enables descriptive comparisons between two speech samples (A/B tests) with human-like judgment. Leveraging this corpus, we propose an alignment approach with LLM distillation (ALLD) to guide the audio LLM in extracting relevant information from raw speech and generating meaningful responses. Experimental results demonstrate that ALLD outperforms the previous state-of-the-art regression model in MOS prediction, with a mean square error of 0.17 and an A/B test accuracy of 98.6%. Additionally, the generated responses achieve BLEU scores of 25.8 and 30.2 on two tasks, surpassing the capabilities of task-specific models. This work advances the comprehensive perception of speech signals by audio LLMs, contributing to the development of real-world auditory and sensory intelligent agents.
format Preprint
id arxiv_https___arxiv_org_abs_2501_17202
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Audio Large Language Models Can Be Descriptive Speech Quality Evaluators
Chen, Chen
Hu, Yuchen
Wang, Siyin
Wang, Helin
Chen, Zhehuai
Zhang, Chao
Yang, Chao-Han Huck
Chng, Eng Siong
Sound
Computation and Language
Audio and Speech Processing
An ideal multimodal agent should be aware of the quality of its input modalities. Recent advances have enabled large language models (LLMs) to incorporate auditory systems for handling various speech-related tasks. However, most audio LLMs remain unaware of the quality of the speech they process. This limitation arises because speech quality evaluation is typically excluded from multi-task training due to the lack of suitable datasets. To address this, we introduce the first natural language-based speech evaluation corpus, generated from authentic human ratings. In addition to the overall Mean Opinion Score (MOS), this corpus offers detailed analysis across multiple dimensions and identifies causes of quality degradation. It also enables descriptive comparisons between two speech samples (A/B tests) with human-like judgment. Leveraging this corpus, we propose an alignment approach with LLM distillation (ALLD) to guide the audio LLM in extracting relevant information from raw speech and generating meaningful responses. Experimental results demonstrate that ALLD outperforms the previous state-of-the-art regression model in MOS prediction, with a mean square error of 0.17 and an A/B test accuracy of 98.6%. Additionally, the generated responses achieve BLEU scores of 25.8 and 30.2 on two tasks, surpassing the capabilities of task-specific models. This work advances the comprehensive perception of speech signals by audio LLMs, contributing to the development of real-world auditory and sensory intelligent agents.
title Audio Large Language Models Can Be Descriptive Speech Quality Evaluators
topic Sound
Computation and Language
Audio and Speech Processing
url https://arxiv.org/abs/2501.17202