Text to Speech Synthesis (TTS)

Voice is crucial for trust. Natural, expressive speech boosts conversions and learning, while robotic audio reduces information retention. Text to Speech Synthesis (TTS) eliminates the need for studios, actors, and post - production, providing instant, cost - effective solutions for customer service, live commerce, and education.

rendora studiorendora studio
September 4, 2025
5 min read

Super-natural, multi-style AI voices for every professional scenario

Voice is a key carrier of trust. Cold, robotic audio can reduce information retention, while natural, emotionally expressive speech improves conversions, watch-through rates, and learning outcomes. Text-to-Speech (TTS) frees voice production from recording studios, professional voice actors, and complex post-production, offering instant, cost-effective solutions for scenarios like customer service, live commerce, and education.

What Is Text-to-Speech?

Text-to-Speech (TTS) is the technology that instantly converts text into high-quality, natural-sounding audio. Unlike past robotic voices, Rendora’s TTS allows control over speech rate, pauses, emphasis, and integrates emotion and style into the voice. For example:

  • In e-commerce, voices can adopt a “sales-prompt” tone.
  • In classrooms, voices can be calm and gradually paced for teaching.

Rendora’s TTS technology supports 20+ languages and provides multiple scene-based templates, making AI Avatar voices sound natural and trustworthy, just like a real person.

Why You Need Text-to-Speech: Pain Points of Traditional Voice Production

Voice is crucial for trust, but traditional voice-over comes with three major challenges:

  • High cost: Requires professional actors, studios, and expensive equipment.
  • Long production cycles: Any script change requires re-recording, increasing time and cost.
  • Limited styles: A single voice actor cannot cover all scenarios, like e-commerce, customer support, or training.

These limitations slow down voice production for live commerce, customer support, or international training, while Rendora TTS allows businesses to generate scenario-specific voices instantly and affordably, without a recording studio.

How Rendora Creates Text-to-Speech: Dual-Engine + Voice Cloning

Rendora combines PGC professional recording and GenAI TTS generation for maximum quality and flexibility:

  • PGC Professional Recording: High-quality recordings are captured in noise-free studios by bilingual voice actors. This builds a standardized voice database with clean tones and diverse styles.
  • GenAI TTS: Using proprietary deep learning algorithms, large-scale training enables real-time generation of natural, emotionally expressive speech from text.
  • Voice Cloning (Beta): Users can record 10–20 seconds of audio to quickly generate a personalized voice. Rendora will support higher fidelity and multi-language cloning in the future product upgrade.

As a result, businesses can thus choose from professional voice library options or create fully branded, custom voices.

Advantages of Rendora Text-to-Speech

  • High naturalness: Avoids robotic tones; closely mimics human pauses, emphasis, and emotional expression.
  • Multi-style adaptation: Supports sales prompts, reassurance, teaching, motivational tones, and more, suitable for e-commerce, customer service, and education.
  • Multi-language output: Generates speech in 20+ languages, ideal for global training and international marketing.
  • Fast iteration: Modify text and instantly generate new speech without re-recording.
  • Cost-effective: Reduces traditional voice-over costs by over 70%, perfect for large-scale content production.
  • Personalized voice cloning: Helps brands create unique voice assets, increasing recognition and user retention.

How to Use Text-to-Speech: Workflow and Best Practices

Workflow:

  1. Choose a voice template: Select a base voice library depending on the scenario (e-commerce, customer service, training).
  2. Input your script: Upload dialogue, lesson, or customer service text.
  3. Set style: Select emotion (enthusiastic, friendly, calm), speech rate, and tone.
  4. Generate & preview: Quickly create speech and adjust conversational tone.
  5. Export & reuse: Bind the voice to 3D AI Avatars or save as an audio asset for multiple videos.

Scenario Applications & Benefits:

  • E-commerce: Generate scenario-based “sales-prompt” voices, edit scripts in real-time, and instantly produce emotionally engaging audio—saving studio costs and improving conversions.
  • Customer service & virtual assistants: 24/7 responses with friendly tones that can automatically adjust to customer emotion, enhancing satisfaction.
  • Education & corporate training: Produce the same course in multiple speeds and languages (20+ supported), enabling rapid deployment for global teams.

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