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Text-to-Speech & Audio AI Fundamentals

Introduces speech synthesis and audio generation pipelines—from text normalization to vocoders. Compare tools, evaluate naturalness and latency, and learn basic ethics for voice cloning and consent.

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What is Text-to-Speech (TTS)?

Bringing Text to Life#

Text-to-Speech (TTS) is a technology that converts written text into spoken words. Modern AI has revolutionized TTS, making it sound incredibly natural and expressive.

How TTS Works#

Traditional TTS systems follow these steps:

1. **Text Analysis**: Understanding the text structure and meaning
2. **Phonetic Conversion**: Converting words to sounds
3. **Audio Generation**: Creating the actual speech audio
4. **Voice Synthesis**: Applying voice characteristics and emotion

AI Revolution in TTS#

Key Improvements#

  • Natural Sounding: AI voices sound almost human
  • Emotional Expression: Can convey emotions and tone
  • Context Awareness: Understands meaning for better delivery
  • Multiple Voices: Choose from various voice styles

Common Applications#

Accessibility#

Screen readers for visually impaired users, helping people with reading difficulties

Smart Devices#

Voice assistants, smart speakers, and mobile app interactions

Content Creation#

Video narration, podcast creation, and audiobook production

Business#

Customer service, announcements, and interactive voice systems

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