The Advantages of Building Your AI Stack In house
summary
Chorus.ai builds its own stack: real-time conversation cloud pushes to Salesforce, voice activity detection moved from GMM to deep nets, universal background models for speaker separation, and per-customer acoustic and language adaptation. The in-house ASR achieves 20% better word error rate than off-the-shelf engines, recovers industry names, restores punctuation via prosody-aware sequence models, discovers unknown topics with a novel algorithm, and surfaces patterns (top reps use more collaborative, empathic vocabulary).
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