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arXiv · 2507.05609

MMW: Side Talk Rejection Multi-Microphone Whisper on Smart Glasses

Yang Liu·Li Wan·Yiteng Huang·Yong Xu·yangyang shi·Saurabh Adya·ming sun·Florian Metze
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Abstract

Smart glasses are increasingly positioned as the next-generation interface for ubiquitous access to large language models (LLMs). Nevertheless, achieving reliable interaction in real-world noisy environments remains a major challenge, particularly due to interference from side speech. In this work, we introduce a novel side-talk rejection multi-microphone Whisper (MMW) framework for smart glasses, incorporating three key innovations. First, we propose a Mix Block based on a Tri-Mamba architecture to effectively fuse multi-channel audio at the raw waveform level, while maintaining compatibility with streaming processing. Second, we design a Frame Diarization Mamba Layer to enhance frame-level side-talk suppression, facilitating more efficient fine-tuning of Whisper models. Third, we employ a Multi-Scale Group Relative Policy Optimization (GRPO) strategy to jointly optimize frame-level and utterance-level side speech suppression. Experimental evaluations demonstrate that the proposed MMW system can reduce the word error rate (WER) by 4.95\% in noisy conditions.

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Yang Liu, Li Wan, Yiteng Huang, Yong Xu, yangyang shi, Saurabh Adya, ming sun, Florian Metze. 2025-07-08. MMW: Side Talk Rejection Multi-Microphone Whisper on Smart Glasses. https://arxiv.org/abs/2507.05609

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