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ease
features
design
support

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Description

Copilot Audio Expression is a novel feature found in Microsoft’s Copilot Labs that converts written text into vivid, natural-sounding audio narrations. Users can input their scripts by typing or pasting, and they have the option to select between Emotive Mode, where they can pick distinct voice styles such as Oak or other expressive tones, and Story Mode, which combines various voices to create a lively storytelling experience. The AI in this tool is capable of reinterpreting content to make it more engaging and nuanced, often incorporating subtle expressive touches. Currently, it supports the English language and can produce brief audio segments, lasting up to about a minute, in MP3 format, which can be played directly in the browser and downloaded without needing to log in. Additionally, the user-friendly interface features a built-in web player that allows for immediate audio previews. This innovative tool opens up new possibilities for content creators looking to enhance their projects with high-quality audio.

Description

Gemini 3.1 Flash TTS represents Google's newest advancement in text-to-speech technology, aimed at providing developers and businesses with expressive, customizable, and scalable AI-generated speech solutions. Accessible through platforms like Google AI Studio and Gemini Enterprise Agent Platform, this model emphasizes user control over audio generation, enabling the manipulation of delivery through natural language prompts and a comprehensive array of over 200 audio tags that can adjust pacing, tone, emotion, and style. It is capable of supporting more than 70 languages and their regional dialects, alongside a selection of 30 prebuilt voices, which allows for the creation of speech that ranges from polished narrations to engaging conversational or artistic performances. Developers have the ability to incorporate specific instructions directly into their text inputs, facilitating the guidance of vocal expression while integrating pacing, emotion, and pauses within a structured prompting system that yields nuanced and high-quality audio. Furthermore, Gemini 3.1 Flash TTS is specifically designed for practical applications, making it suitable for use in accessibility tools, gaming audio, and a variety of other innovative projects. This flexibility ensures that users can adapt the technology to meet diverse needs across multiple industries effectively.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
Microsoft Copilot

Integrations

Gemini
Gemini 3.1 Flash-Lite
Gemini 3.1 Pro
Gemini Enterprise Agent Platform
Gemini Live API
Google AI Studio
Google Vids
Microsoft Copilot

Pricing Details

No price information available.
Free Trial
Free Version

Pricing Details

No price information available.
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Microsoft

Founded

1975

Country

United States

Website

copilot.microsoft.com/labs/experiments/audio-expression

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-3-1-flash-tts/

Product Features

Product Features

Text to Speech

API
Adjust Speaking Rate / Pitch
Audio Optimization
Custom Lexicons
Different Voice Choices
Multi-Language Support
Synchronize Speech

Alternatives

Alternatives

MAI-Voice-1 Reviews

MAI-Voice-1

Microsoft
Voxtral TTS Reviews

Voxtral TTS

Mistral AI