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Speech Recognition and Diarization on AMI IHM

19.21WERVibeVoice Single-pass baseline
19.07819.96920.8621.751May 31, 2026

Evaluation results

MethodLinks
VibeVoice Single-pass baselineChunk size=300s, Batch size=16, Total (s)=370.73, Speed-up=baseline2026.0519.219.4224.8425.68
MURMUR: Chunked, no evictionChunk size=300s, Batch size=16, KV cache eviction strategy=None, Total (s)=100.8, Speed-up=3.68×2026.0519.88.4522.3624.92
MURMUR: Output token evictionChunk size=300s, Batch size=16, KV cache eviction strategy=s4 w1024, Total (s)=97.6, Speed-up=3.79×2026.0519.898.5222.3625.01
MURMUR: Both evictionChunk size=300s, Batch size=16, KV cache eviction strategy=Output and Speech eviction, Total (s)=96.1, Speed-up=3.85×2026.0520.238.6322.9625.73
MURMUR: Speech token evictionChunk size=300s, Batch size=16, KV cache eviction strategy=d512 w1024, Total (s)=88.43, Speed-up=4.20×2026.0520.418.7723.1925.29
WhisperXChunk size=300s, Batch size=16, Total (s)=38.81, Speed-up=9.55×2026.0522.5123.6233.4835.54