Performance evaluation of SLAM-ASR: The Good, the Bad, the Ugly, and the Way Forward

• URL: http://arxiv.org/abs/2411.03866v1
• Date: Wed, 06 Nov 2024 12:22:04 GMT
• Title: Performance evaluation of SLAM-ASR: The Good, the Bad, the Ugly, and the Way Forward
• Authors: Shashi Kumar, Iuliia Thorbecke, Sergio Burdisso, Esaú Villatoro-Tello, Manjunath K E, Kadri Hacioğlu, Pradeep Rangappa, Petr Motlicek, Aravind Ganapathiraju, Andreas Stolcke,
• Abstract summary: Recent research has demonstrated that training a linear connector between speech foundation encoders and large language models (LLMs) enables this architecture to achieve strong ASR capabilities. Despite the impressive results, it remains unclear whether these simple approaches are robust enough across different scenarios and speech conditions. We present novel empirical findings that offer insights on how to effectively utilize the SLAM-ASR architecture across a wide range of settings.
• Score: 10.914414815406275
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent research has demonstrated that training a linear connector between speech foundation encoders and large language models (LLMs) enables this architecture to achieve strong ASR capabilities. Despite the impressive results, it remains unclear whether these simple approaches are robust enough across different scenarios and speech conditions, such as domain shifts and different speech perturbations. In this paper, we address these questions by conducting various ablation experiments using a recent and widely adopted approach called SLAM-ASR. We present novel empirical findings that offer insights on how to effectively utilize the SLAM-ASR architecture across a wide range of settings. Our main findings indicate that the SLAM-ASR exhibits poor performance in cross-domain evaluation settings. Additionally, speech perturbations within in-domain data, such as changes in speed or the presence of additive noise, can significantly impact performance. Our findings offer critical insights for fine-tuning and configuring robust LLM-based ASR models, tailored to different data characteristics and computational resources.

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