How to Evaluate Synthetic Voice for Agentic AI: Choosing the Right Metrics, Evaluators and Experimental Design
Synthetic voice evaluation is the process of assessing the intelligibility, naturalness and use-case appropriateness of text-to-speech (TTS) voices using controlled testing methods and carefully selected evaluators. Unlike judgments of Automatic Speech Recognition (ASR), evaluating the synthetic voice used in TTS is a relatively subjective matter, requiring variables to be carefully controlled and end goals to be clearly defined. For agentic
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