VoiceMem: Streaming Dual-Brain Memory for Real-Time Interaction

• URL: http://arxiv.org/abs/2608.26005v1
• Date: Wed, 26 Aug 2026 16:50:05 GMT
• Title: VoiceMem: Streaming Dual-Brain Memory for Real-Time Interaction
• Abstract summary: VoiceMem is a memory architecture with a parallel informational left brain, an emotional right brain, and streaming memory I/O mechanisms.<n>Experiments and real-world deployment show three advantages.
• Score: 92.2925193726566
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Conversational systems, such as duplex speech language models (SLMs), still lack a streaming, accurate, and empathetic memory system as their soul. We introduce VoiceMem, a simple memory architecture with a parallel informational left brain, an emotional right brain, and streaming memory I/O mechanisms. We further build a complete pipeline for memory-aware SLM training, long-horizon evaluation, and decoupled deployment with interchangeable memory backends. Experiments and real-world deployment show three advantages: i) Accuracy: under top-5 retrieval, the left brain outperforms classical systems such as Mem0 at top-200 by nearly 30 points; ii) Emotional & Personal: the right brain, with short- and long-horizon affective attribution and dual-node persona modeling, achieves state-of-the-art performance across three persona benchmarks and improves the aggregate score by 4.29 points over the previous best system; and iii) Real-Time & Cheap: VoiceMem completes retrieval in 134 ms, well within standard VAD latency, adding no extra conversational delay while maintaining high accuracy and low cost. These results show that VoiceMem provides a practical memory foundation for real-time, personalized, and emotionally aware speech interaction.

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