TTSLexx

TTSLexx is a text-to-speech customization app that enhances Google's Speech Services with a personalized dictionary layer. If you read books, articles, or documents aloud and want precise pronunciation control—especially for languages with stress marks like Russian—this app transforms how your device reads text.

The core strength lies in its custom dictionary editor. As you read from any app using Google's text-to-speech, TTSLexx intercepts the text and applies your dictionary rules before speech synthesis occurs. A left-right swipe shows you exactly what the reader app sends and what TTSLexx passes to Google TTS, making it easy to refine entries. Dictionary changes take effect immediately, and you can export backups to protect your work before app updates.

Three dictionary entry types give you complete control. Regular expressions remove unwanted elements—like citation numbers in brackets. Direct word replacements handle abbreviations and phrases, with special logic for Russian homographs that change pronunciation based on context and neighboring words. Single-word entries with stress marks comprise the largest dictionary section for Russian, letting you correct pronunciation at scale. Advanced replacements even modify letters themselves, addressing cases where accent marks alone can't achieve correct pronunciation.

Additional features enhance your experience across supported languages: Bangla, Chinese, English, French, German, Gujarati, Hindi, Indonesian, Italian, Japanese, Kannada, Korean, Malayalam, Marathi, Portuguese, Russian, Spanish, Tamil, Telugu, Thai, Turkish, Ukrainian, Urdu, and Vietnamese. Select and remember a preferred voice independent of your device's default setting. Remove sentence-ending periods to prevent Google TTS from reading abbreviations incorrectly. For Russian specifically, built-in text processing cleans input, standardizes formatting, and intelligently replaces е with ё in unambiguous cases.

Network voice support lets you leverage Google's high-quality cloud voices when internet is available, reducing pronunciation errors dramatically. A separate NET.lexx dictionary optimizes settings for these voices. Note that Google Speech Services decides whether to use network or local variants, and airplane mode disables network voices even with WiFi.

Access the dictionary editor via app notifications or the Share function available in most reading apps. TTSLexx works as a quasi-TTS add-on, enhancing rather than replacing Google's engine. Important: TTSLexx is not recommended for critical accessibility apps like TalkBack, and it does not export audio files. Your experience depends entirely on Speech Services by Google availability and internet connectivity for network voices. Download TTSLexx today and reclaim control over how your device reads to you.