Understanding how text-to-speech (TTS) operates in production environments reveals complexities that are not apparent in demo settings, where controlled conditions mask challenges like irregular text and high concurrency. The text conversion involves text normalization, phoneme prediction, and waveform synthesis, with each stage affecting latency and scalability. In production, variables such as unstructured text, concurrency, and latency budgets can impact system performance, especially when handling sensitive information in fields like healthcare and finance. Deployment models—cloud-based or self-hosted—also play a critical role in determining system compliance with data regulations and operational control. Evaluating TTS systems requires rigorous testing under real-world conditions to ensure stability, cost-effectiveness, and precise entity recognition. Deepgram Aura is highlighted as a solution that offers predictable performance and robust handling of these challenges, making it suitable for scalable, reliable voice applications in diverse environments.