AI text to speech is a neural network-based technology that converts written text into spoken audio using synthesized voices. Modern TTS systems use deep learning models trained on thousands of hours of human speech to generate natural-sounding voiceovers with proper pronunciation, intonation, and emotional expression. These systems can produce speech in multiple languages, accents, and voice characteristics without requiring voice actors.

Input your text script into the generator, select a voice profile that matches your content type (narrative, conversational, or instructional), then adjust parameters like speech rate (typically 150-180 words per minute for optimal comprehension), pitch variation, and pause duration. Add SSML tags for emphasis on specific words or phrases if you need precise control over pronunciation. Preview the output, make adjustments to timing or inflection, then export in your preferred audio format (MP3 for web, WAV for editing).

Most TTS generators export to MP3 (128-320 kbps for web delivery), WAV (16-bit or 24-bit for professional editing), and sometimes OGG or FLAC formats. For podcast distribution, use 128 kbps MP3 at 44.1 kHz sample rate. For video production or further audio processing, export as 24-bit WAV at 48 kHz. Some platforms also offer direct integration with video editors or podcast hosting services.

Insert strategic pauses using punctuation or SSML break tags (200-300ms between sentences, 500-800ms between paragraphs). Vary sentence structure to avoid monotonous rhythm patterns. Use phonetic spelling for acronyms, technical terms, or brand names that the AI mispronounces. Adjust the speech rate to 0.9x-0.95x for technical content where comprehension is critical, or 1.05x-1.1x for energetic promotional content. Add emphasis tags to important words to create natural stress patterns.

Commercial usage rights depend on the specific TTS platform's licensing terms. Most enterprise TTS services include commercial licenses in paid tiers, allowing use in advertisements, audiobooks, e-learning courses, and video content. Some platforms charge per character or per minute of generated audio for commercial use. Always verify the license covers your specific use case (broadcast, streaming, physical media) and check attribution requirements. Some voices may have restrictions on political or adult content.