> ## Documentation Index > Fetch the complete documentation index at: https://edenai-docs-github-copilot-integration.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Text to Speech > Text-to-speech (TTS) is a technology that converts written text into spoken audio, enabling computers and digital devices to "read" text aloud. export const TechArticleSchema = ({title, description, path, articleSection, about, proficiencyLevel = "Beginner", dependencies, keywords = [], datePublished, dateModified, image, inLanguage = "en"}) => { const baseUrl = "https://www.edenai.co/docs"; const canonicalUrl = `${baseUrl}/${path}`.replace(/\/+$/, ""); const ogParams = new URLSearchParams({ division: articleSection || "", title: title || "", description: description || "" }); const resolvedImage = image || `https://edenai.mintlify.app/_mintlify/api/og?${ogParams.toString()}`; const data = { "@context": "https://schema.org", "@type": "TechArticle", "@id": `${canonicalUrl}#techarticle`, mainEntityOfPage: { "@type": "WebPage", "@id": canonicalUrl }, headline: title, name: title, description: description, url: canonicalUrl, inLanguage: inLanguage, isPartOf: { "@type": "WebSite", name: "Eden AI Documentation", url: baseUrl }, author: [{ "@type": "Organization", name: "Eden AI", url: "https://www.edenai.co/" }], publisher: { "@type": "Organization", name: "Eden AI", url: "https://www.edenai.co/", logo: { "@type": "ImageObject", url: "https://www.edenai.co/assets/logo.png" } } }; if (articleSection) data.articleSection = articleSection; if (about) data.about = { "@type": "Thing", name: about }; if (proficiencyLevel) data.proficiencyLevel = proficiencyLevel; if (dependencies) data.dependencies = dependencies; if (keywords && keywords.length) data.keywords = keywords; if (datePublished) data.datePublished = datePublished; if (dateModified) data.dateModified = dateModified; data.image = Array.isArray(resolvedImage) ? resolvedImage : [resolvedImage]; const json = JSON.stringify(data); const schemaId = `techarticle-${canonicalUrl}`; React.useEffect(() => { if (typeof document === "undefined") return; document.querySelectorAll(`script[data-schema-id="${schemaId}"]`).forEach(n => n.remove()); const script = document.createElement("script"); script.type = "application/ld+json"; script.dataset.schemaId = schemaId; script.textContent = json; document.head.appendChild(script); return () => script.remove(); }, [json, schemaId]); return null; }; ## Endpoint `POST /v3/universal-ai` (sync) Model string pattern: `audio/tts/{provider}[/{model}]` ## Input | Field | Type | Required | Description | | ----------------------------------------------------------------------------------------- | ------ | -------- | ---------------------------------------------------------------------------------------- | | text | string | Yes | Text to convert to speech | | voice | string | No | Voice identifier to use for synthesis, can be name or id. | | For supported voices for your provider/model, please check each provider's documentation. | | | | | speed | float | No | Speed multiplier for speech synthesis | | audio\_format | string | No | Desired audio format (e.g., 'mp3', 'wav') | | speaking\_pitch | int | No | Increase or decrease the speaking pitch by a percentage from -100% to 100%, 0 is normal. | | speaking\_volume | int | No | Increase or decrease the audio volume by a percentage from -100% to 100%, 0 is normal. | ## Output | Field | Type | Required | Description | | -------------------- | ------ | -------- | ----------- | | audio\_resource\_url | string | Yes | | ## Available Providers | Provider | Model String | Price | | ------------------------------------- | ----------------------------------------------- | ------------------------- | | amazon (neural) | `audio/tts/amazon/neural` | \$0.016 per 1,000 chars | | amazon (standard) | `audio/tts/amazon/standard` | \$0.004 per 1,000 chars | | deepgram (aura) | `audio/tts/deepgram/aura` | \$0.015 per 1,000 chars | | deepgram (aura-2) | `audio/tts/deepgram/aura-2` | \$0.03 per 1,000 chars | | elevenlabs | `audio/tts/elevenlabs` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_flash\_v2) | `audio/tts/elevenlabs/eleven_flash_v2` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_flash\_v2\_5) | `audio/tts/elevenlabs/eleven_flash_v2_5` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_multilingual\_v2) | `audio/tts/elevenlabs/eleven_multilingual_v2` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_turbo\_v2) | `audio/tts/elevenlabs/eleven_turbo_v2` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_turbo\_v2\_5) | `audio/tts/elevenlabs/eleven_turbo_v2_5` | \$0.3 per 1,000 chars | | elevenlabs (eleven\_v3) | `audio/tts/elevenlabs/eleven_v3` | \$0.3 per 1,000 chars | | google (casual) | `audio/tts/google/casual` | \$16 per 1,000,000 chars | | google (chirp3-hd) | `audio/tts/google/chirp3-hd` | \$30 per 1,000,000 chars | | google (chirp-hd) | `audio/tts/google/chirp-hd` | \$30 per 1,000,000 chars | | google (gemini-2.5-flash-tts) | `audio/tts/google/gemini-2.5-flash-tts` | \$0.006 per minute | | google (gemini-2.5-pro-tts) | `audio/tts/google/gemini-2.5-pro-tts` | \$0.012 per minute | | google (gemini-3.1-flash-tts-preview) | `audio/tts/google/gemini-3.1-flash-tts-preview` | \$0.012 per minute | | google (neural2) | `audio/tts/google/neural2` | \$16 per 1,000,000 chars | | google (news) | `audio/tts/google/news` | \$160 per 1,000,000 chars | | google (polyglot) | `audio/tts/google/polyglot` | \$16 per 1,000,000 chars | | google (standard) | `audio/tts/google/standard` | \$4 per 1,000,000 chars | | google (studio) | `audio/tts/google/studio` | \$160 per 1,000,000 chars | | google (wavenet) | `audio/tts/google/wavenet` | \$4 per 1,000,000 chars | | lovoai | `audio/tts/lovoai` | \$160 per 1,000,000 chars | | microsoft (neural) | `audio/tts/microsoft/neural` | \$16 per 1,000,000 chars | | microsoft (neural-hd) | `audio/tts/microsoft/neural-hd` | \$30 per 1,000,000 chars | | openai (gpt-4o-mini-tts) | `audio/tts/openai/gpt-4o-mini-tts` | \$0.015 per minute | | openai (tts-1) | `audio/tts/openai/tts-1` | \$15 per 1,000,000 chars | | openai (tts-1-hd) | `audio/tts/openai/tts-1-hd` | \$30 per 1,000,000 chars | ## Quick Start ```python Python theme={null} import requests url = "https://api.edenai.run/v3/universal-ai" headers = { "Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json" } payload = { "model": "audio/tts/amazon/neural", "input": { "text": "The quick brown fox jumps over the lazy dog." } } response = requests.post(url, headers=headers, json=payload) print(response.json()) ``` ```bash cURL theme={null} curl -X POST https://api.edenai.run/v3/universal-ai \ -H "Authorization: Bearer YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "audio/tts/amazon/neural", "input": {"text": "The quick brown fox jumps over the lazy dog."} }' ```