AINeutralarXiv – CS AI · 14h ago5/10
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Real-Time Voicemail Detection in Telephony Audio Using Temporal Speech Activity Features
Researchers developed a lightweight machine learning system that detects voicemail greetings versus live human answers in real-time telephony audio with 96.1% accuracy using only temporal speech activity patterns. The system processes calls in 46ms on standard CPUs and has been validated across 77,000 production calls, achieving practical false positive and negative rates suitable for AI calling applications.