Dasha Y186-custom-roy -

In A/B testing (n=500 calls), Y186-custom-roy reduced average call duration by 18% while increasing post-call customer satisfaction (CSAT) by 12% compared to the baseline Dasha generic voice agent. Latency was kept below 700ms P95.

Custom voice parameters significantly improve perceived agent rapport in retention contexts. Future work includes multilingual adaptation of the “Roy” voice profile.

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This paper presents the design, implementation, and evaluation of Dasha Y186-custom-roy , a domain-adapted conversational AI agent built on the Dasha platform. The agent was fine-tuned for customer retention calls in the telecom sector, with a custom prosody model (“Roy”) optimized for low-latency turn-taking and empathy detection.

We trained Y186 on 10,000 real conversation logs, integrating Dasha’s <vad> and <tts> tags with a custom interruption-handling logic. The “Roy” customization included pitch downshifts for reassurance phrases and speed modulation for urgency.

Performance Evaluation of a Custom Voice Agent (Dasha Y186-custom-roy) for High-Latency Conversational AI in Customer Retention Scenarios