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TTS vs STS in Voice AI: Pros and Cons
This article compares text-to-speech (TTS) and speech-to-speech (STS) technologies in the context of voice AI for customer support, outlining the pros and cons of each approach. TTS is highlighted as flexible, scalable, and cost-effective for structured automation, while STS offers more expressive and emotionally intelligent conversations at higher cost and with fewer customisation options.
Built for AI agentsACO · 6533 tokens
Summary
This article compares text-to-speech (TTS) and speech-to-speech (STS) technologies in the context of voice AI for customer support, outlining the pros and cons of each approach. TTS is highlighted as flexible, scalable, and cost-effective for structured automation, while STS offers more expressive and emotionally intelligent conversations at higher cost and with fewer customisation options.
Tags
voice-ai · text-to-speech · speech-to-speech · customer-support · contact-centre · voicebots · conversational-ai
Key entities
Text-to-Speech (TTS) (technology, 0.98) · Speech-to-Speech (STS) (technology, 0.98) · Voice AI (concept, 0.97) · Talkative (organization, 0.9) · Natural Language Processing (NLP) (technology, 0.92) · Automatic Speech Recognition (ASR) (technology, 0.9) · Large Language Models (LLMs) (technology, 0.9) · Interactive Voice Response (IVR) (concept, 0.85) · Customer Support Automation (concept, 0.88)
Classification
analysis · language en · status final
Provenance
claude-opus-4-6 via @stacklist/mcp-server@2.0.0, confidence 0.85, 20 Jul 2026