Expressive speech generation
Produces natural-sounding speech with expressive control, including emotion tags such as sad, whispered, and excited.
MAI-Voice-2
MAI-Voice-2 is Microsoft AI’s text-to-speech model for natural, expressive speech in assistants, support, narration, and accessibility. Available in Microsoft Foundry.
Overview
MAI-Voice-2 is Microsoft AI’s text-to-speech model for generating natural, expressive speech for products and services where voice quality affects the user experience. Microsoft positions it for assistants, customer support, audiobooks, accessibility experiences, and other long-form or brand-sensitive voice workflows.
The model is available in Microsoft Foundry and is also being integrated into VS Code and Dynamics 365 Contact Center. Microsoft says it supports 15 languages/locales, emotion control through tags, zero-shot voice prompting from short reference audio, and code-switching for select language pairs, while keeping speaker identity consistent across longer generations.
Features and capabilities
Multilingual support
Extends coverage from English-only to 15 languages/locales while aiming to keep the same naturalness and expressiveness.
Zero-shot voice prompting
Uses 5–60 seconds of reference audio to create a custom voice without retraining or fine-tuning.
Stable speaker consistency
Maintains speaker identity across long-form output such as audiobooks, podcasts, and lectures.
Mixed-language speech
Supports code-switching for select language pairs such as Hindi-English and Spanish-English.
Consent controls
Includes consent guardrails so only authorized, licensed voices can be synthesized in production.
Use cases
Branded assistants and support
Use MAI-Voice-2 to give assistants or customer support products a branded, consistent voice that matches the experience users hear from your product.
Long-form narration
Generate narration for long-form audio such as audiobooks, podcasts, and lectures, where stable speaker identity matters over extended output.
Accessibility experiences
Create accessible voice interfaces for visually impaired users or people who rely on speech output as their primary way to interact with software.
Entertainment and character audio
Build character voices for games, AR/VR, or scripted media, with control over emotion and delivery style.
Custom brand voice creation
Use short reference audio to create a custom voice in Microsoft Foundry for product teams that want their own voice without training a separate model.
Pros and Cons
Pros
- Supports 15 languages/locales, not just English.
- Offers emotion tags for finer speech direction.
- Can create a custom voice from a short reference clip without retraining or fine-tuning.
- Maintains speaker identity across long-form audio.
- Available in Microsoft Foundry and being integrated into VS Code and Dynamics 365 Contact Center.
Cons
- Pricing is not disclosed on the product page, and the linked pricing page does not provide MAI-Voice-2 pricing details.
- Some capabilities are limited to select language pairs, such as Hindi-English and Spanish-English, rather than all supported languages.
- Custom voice access is gated by an application flow for authorized, licensed voices.
FAQ
Where can I use MAI-Voice-2?
MAI-Voice-2 is available in Microsoft Foundry, and Microsoft says it is also being integrated into VS Code and Dynamics 365 Contact Center.
What does MAI-Voice-2 do?
The page describes MAI-Voice-2 as a text-to-speech model with support for 15 languages/locales, emotion tags, zero-shot voice prompting from 5–60 seconds of reference audio, code-switching for select language pairs, and stable speaker identity across long-form output.
Can I create a custom voice with MAI-Voice-2?
Microsoft says custom voices can be created in Microsoft Foundry with a short reference clip and without retraining or fine-tuning, but only authorized, licensed voices can be synthesized in production.
Which languages does MAI-Voice-2 support?
The launch page lists supported languages/locales, including English (US), English (Australia), Italian, French, German, Hindi, Spanish (Spain), Spanish (Mexico), Portuguese (Brazil), Portuguese (Portugal), Korean, Chinese (Simplified), Turkish, Russian, Thai, Dutch, Romanian, and Hungarian.
Quick Facts
- Category
- Text-to-speech
- Product
- MAI-Voice-2
- Platform
- Microsoft Foundry
- Also integrated into
- VS Code; Dynamics 365 Contact Center
- Supported languages/locales
- 15
- Source domain
- microsoft.ai
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