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TTS Tested Optimizer


TTS Tested verifies your transcript works well for text-to-speech applications. It identifies problematic text that TTS engines struggle with and suggests corrections for optimal audio output.


How the TTS Tested Optimizer works


Upload your transcript intended for TTS conversion. The tool scans for common TTS problems: abbreviations, numbers, special characters, and ambiguous pronunciations. Suggests corrections for smooth TTS playback – spelling out abbreviations, writing numbers as words, clarifying pronunciations. Test with multiple TTS voices to ensure compatibility. Export TTS-optimized text ready for any speech synthesis system.

TTS Tested ensures your text sounds right. Written text often sounds terrible when spoken by TTS – abbreviations become letter soup, numbers sound robotic. This tool prepares text specifically for TTS, ensuring your automated audio sounds natural and professional. Essential for audiobook creation, voice apps, and accessibility.



Meet the fastest voice-to-text for professionals


WriteVoice turns your voice into clean, punctuated text that works in any app. Create and ship faster without typing. Your first step was TTS Tested Optimizer; your next step is instant dictation with WriteVoice.



A blazing-fast voice dictation

Press a hotkey and talk. WriteVoice inserts accurate, formatted text into any app, no context switching


Works in any app

Press one hotkey and speak; your words appear as clean, punctuated text in Slack, Gmail, Docs, Jira, Notion, and VS Code—no context switching, just speed with writevoice

Accurate, multilingual, and smart

97%+ recognition, smart punctuation, and 99+ languages so your ideas land first try, built for teams and pros.

Private by default

Zero retention, audio and text are discarded instantly, with on-device controls so you can dictate sensitive work confidently.



Start with TTS Tested Optimizer, then level up to WriteVoice.io