--- title: Arabic TTS with tashkeel support in Telnyx NaturalHD canonical: https://telnyx.com/resources/arabic-tts-with-tashkeel-support --- # Arabic TTS with tashkeel support in Telnyx NaturalHD [Back to blog](https://telnyx.com/resources) **Conversational AI** # Arabic TTS with Tashkeel Support Telnyx NaturalHD adds full tashkeel support for Arabic TTS, delivering accurate, natural pronunciation across dialects. By [Abhishek Sharma](https://telnyx.com/authors/abhishek-sharma) Telnyx NaturalHD voices now generate accurate Arabic speech directly from unvowelled script, improving pronunciation, rhythm, and fluency without requiring tashkeel marks. This update delivers high-quality speech for Gulf Arabic out of the box, while still supporting full diacritic input for developers who need precision. ## A layered approach to pronunciation NaturalHD now treats tashkeel as an optional but supported feature. The TTS engine intelligently infers vowels, stress, and pauses when _tashkeel_ is absent, handling common Arabic text as it appears in chat, IVR menus, or databases. For advanced cases, developers can still send explicit tashkeel or use SSML phoneme tags to control pronunciation. This enables a 3 layered strategy to balance accuracy and scale. 1. Automatic inference: Default mode for unvowelled text, producing fluent speech across dialects. 2. Explicit tashkeel: Ensures perfect accuracy for names, legal, or religious content. 3. Phoneme-level tuning: Enables fine-grained control through SSML tags for rare or ambiguous terms. ## How it works When text is sent to NaturalHD, the system first checks for existing tashkeel. If none are found, the prosody model predicts missing vowels and adjusts stress and timing for natural rhythm.The voices, haqq, qadir, layla, shams, and sakina, have been tuned for Gulf Arabic. They feature balanced intonation suitable for customer support and conversational agents. ## Why this matters Arabic is one of the most complex languages for speech synthesis. Without diacritics, even advanced TTS models make unpredictable errors. With NaturalHD’s new tashkeel handling, developers no longer have to compromise between scale and precision. You can keep tashkeel in curated content, apply automatic diacritization for user-generated input, and fine-tune pronunciation for high-value words within the same voice pipeline. ## Validation and known limitations Our new Arabic voices - **haqq, qadir, layla, shams, and sakina** tuned for Gulf Arabic, so you should validate the output against your target dialect. While automatic diacritization is effective, it remains probabilistic and can fail on rare words. We recommend surfacing confidence scores in your application to handle these edge cases. For a complete evaluation, test the full pipeline by pairing NaturalHD with an Arabic-capable STT engine like Azure or Whisper-large-v3. Arabic TTS should sound natural. With this update, every vowel, pause, and inflection is under your control. It's live in the NaturalHD on Telnyx today. _Want better Arabic TTS with Tashkeel? Join our [subreddit](https://www.reddit.com/r/Telnyx/)._ Share on Social Abhishek Sharma Sr Technical Product Marketing Manager Senior Technical Product Marketing Manager ## Jump to: [A layered approach to pronunciation](#a-layered-approach-to-pronunciation)[How it works](#how-it-works)[Why this matters](#why-this-matters)[Validation and known limitations](#validation-and-known-limitations) ## Sign up for emails of our latest articles and news [Start building](https://telnyx.com/sign-up) Related articles * [**Conversational AI**AI Agents in Financial Services: Use Cases in India![megha-profile](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Untitled%20(400%20x%20400%20px)%20(1).png?width=96&format=webp)By Megha Sujanani12, Oct 2026](https://telnyx.com/resources/ai-agents-indian-financial-services) * [**Conversational AI**How to build an omnichannel AI agent![Deniz Yakışıklı](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Deniz_Yakisikli_6b7b420ed4.png?width=96&format=webp)By Deniz Yakisikli12, Oct 2026](https://telnyx.com/resources/how-to-build-an-omnichannel-ai-agent) * [**Conversational AI**Why your voice AI agent is slow on phone calls, and how to fix it![Osman Husain Telnyx](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Osman%20Husain%20headshot?width=96&format=webp)By Osman Husain8, Oct 2026](https://telnyx.com/resources/voice-ai-delay-causes) * [**Inference**AI DLP Test: Six Data Types, Six Blocks, $0 Charged![Fiona McDonnell](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/11_5e5b137a78.jpg?width=96&format=webp)By Fiona McDonnell2, Oct 2026](https://telnyx.com/resources/ai-dlp-gateway-test) * [**Conversational AI**Our Early Benchmarks on ElevenLabs vs MiniMax TTS and Why It Matters![Abhishek Sharma](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Abishek_Sharma_8313622a2b.png?width=96&format=webp)By Abhishek Sharma28, Sep 2026](https://telnyx.com/resources/minimax-speech-2-6-vs-elevenlabs-tts-benchmarks) * [**Conversational AI**Why teams outgrow Retell and migrate to Telnyx![Abhishek Sharma](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/Abishek_Sharma_8313622a2b.png?width=96&format=webp)By Abhishek Sharma28, Sep 2026](https://telnyx.com/resources/why-teams-outgrow-retell-and-migrate-to-telnyx) ### Ask AI * [![GPT](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/chatgpt_icon-ea55e09d.jpeg?width=92&format=webp)](https://chat.openai.com/?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.) * [![Claude](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/claude_icon-c7c8eef3.webp?width=92&format=webp)](https://claude.ai/new?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.) * [![Perplexity](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/perplexity_icon-cd5b74f1.webp?width=92&format=webp)](https://www.perplexity.ai/search?q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.) * [![Gemini](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/gemini_icon-4ff1cbf4.webp?width=92&format=webp)](https://www.google.com/search?udm=50&aep=11&q=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.) * [![Grok](https://d2efw2akbx8gaf.cloudfront.net/https://dotcom-payload-assets-prod.s3.us-east-1.amazonaws.com/cms-media/grok_icon-e588e5bd.webp?width=92&format=webp)](https://x.com/i/grok?text=What makes Telnyx's global network different, breakdown call quality for normal phone calls and voice AI calls.)