Speech Generation

Turn written text into lifelike spoken audio. WaveSpeed's Speech Generation engine powers the next generation of voice applications. Whether you need emotional storytelling for audiobooks, rapid responses for AI assistants, or brand-specific voice cloning, access the world's best models like ElevenLabs and OpenAI TTS via a single, high-performance API.

Generate Speech View API Docs

Voice Generation Capabilities

Different content requires different delivery styles. Select the perfect voice model for your specific use case.

1. Narrative & Storytelling

Powered by ElevenLabs. Generate expressive, emotionally rich narration for audiobooks, documentaries, and educational content. Supports long-form generation with paragraph-level pacing, dramatic pauses, and tonal shifts that adapt to story context. Best for audiobook production, e-learning modules, and podcast scripting. Combine with Audio for Video workflows for complete multimedia production.

2. Conversational AI

Powered by OpenAI TTS. Create natural, human-sounding dialogue for chatbots, virtual assistants, and interactive voice response (IVR) systems. Ultra-low latency for real-time applications with support for turn-taking, interruptions, and contextual intonation. Best for customer service bots, in-app assistants, and interactive tutorials. Available on WaveSpeed.

3. Voice Cloning

Powered by OpenVoice / XTTS. Clone any voice from a short audio sample (as little as 10 seconds) and generate new speech in that voice across 20+ languages. Preserves the speaker's unique timbre, accent, and speaking style. Best for brand voice consistency, content localization, and personalized marketing. Explore more open-source models for pairing with video generation.

The Generation Workflow

Create professional audio assets in three steps.

Input Text & SSML

Type or paste your script. Use SSML tags to control pauses, pronunciation, and emphasis for fine-tuned delivery.

Select Voice & Settings

Choose from 1000+ pre-made voices or upload a sample for cloning. Adjust Stability and Similarity Boost parameters.

Generate & Stream

Get instant MP3/WAV output, or use our WebSocket endpoint to stream audio chunks with under 300ms latency for real-time apps.

Q & A

How does Speech Generation handle different languages?

Modern models are "Multilingual." A single model (like ElevenLabs Multilingual v2) can speak English, Spanish, German, Japanese, and 25+ other languages fluently, often switching between them in the same sentence if needed.

Is the generated speech royalty-free?

Yes. Audio generated using WaveSpeed's standard voices is royalty-free and can be used for commercial projects, including YouTube videos, podcasts, and advertising.

How accurate is Voice Cloning?

Extremely accurate. With just 1 minute of clear audio, the AI can capture the speaker's accent and vocal characteristics. However, we require explicit consent verification to prevent unauthorized cloning.

What is the cost per character?

Pricing is based on the number of characters processed. Our standard tier is highly affordable for bulk generation, while premium models (like high-fidelity cloning) command a slightly higher rate due to compute intensity.

Can I control the emotion of the voice?

Yes. You can use "Style Prompts" or specific tags to direct the AI to speak in a "happy," "sad," "angry," or "professional" tone, ensuring the audio matches the mood of your script.