Tested Unity versions

Tested platforms

LMNT

LMNT is an API for text-to-speech and voice cloning. Welcome!

Introduction

Environment setup

Text-to-speech example

How to use the speech session API to stream text to the server and receive synthesized speech in real-time.

Speech session example

Learn more about our flagship model: Blizzard

Models

Voice cloning

Optimizing latency

Synchronizing timing

LMNT supports multiple languages. Learn how to use them here.

Languages

Learn how to use LMNT in your Vercel apps.

Vercel

Vercel guide

ElevenLabs -> LMNT

Migrating from ElevenLabs to LMNT

PlayHT -> LMNT

Migrating from PlayHT to LMNT

Synthesizes speech from a text string and returns the audio data as a binary stream.

Generate speech

Synthesizes speech from a text string and provides advanced information about the synthesis. **Returns a JSON object** that contains a base64-encoded audio file, the seed used in speech generation, and optionally an object detailing the duration of each spoken word.

Generate speech (detailed)

Synthesizes speech from a text string and returns the audio data as a binary stream. Uses query parameters instead of a form body. This simplified version of synthesis can be directly used in HTML5 audio tags.

Generate speech (simple)

Stream text to our servers and receive synthesized speech in real-time.

Speech session (WebSocket)

Converts speech from one voice to another.

Convert voice

Submits a request to create a voice given configuration data and some source audio.

Create voice

Returns a list of voices available to you.

List voices

Voice info

Updates metadata for a specific voice. Only provided fields will be changed.

Update voice

Deletes a voice and cancels any pending operations on it. Cannot be undone.

Delete voice

Account info

Integrate LMNT with your exisiting workflows.

Overview

SDKs

Reference

Record of changes across our models and API surfaces.

Product Updates

Reference for the Speech class in the Python SDK

Speech

Reference for the StreamingSynthesisConnection class in the Python SDK

StreamingSynthesisConnection

Reference for the Speech class in the Node.js SDK v1

Reference for the StreamingSynthesisConnection class in the Node.js SDK v1

Our API provides access to two models: Aurora and Blizzard. This page explains how to choose the right model for your needs.

Unity Version	Tested Version	API Level
2021.3	2021.3.2f1	.NET Standard 2.1 or .NET Framework
2022.1	2022.1.24f1	.NET Standard 2.1 or .NET Framework
2022.2	2022.2.11f1	.NET Standard 2.1 or .NET Framework

Tested Platform	Scripting Backend	API Level
Windows	Mono	.NET Standard 2.1 or .NET 4.x+
Windows	IL2CPP	.NET Standard 2.1 or .NET 4.x+
Linux	Mono	.NET Standard 2.1 or .NET 4.x+
Linux	IL2CPP	.NET Standard 2.1 or .NET 4.x+
Mac	Mono	.NET Standard 2.1 or .NET 4.x+
Mac	IL2CPP	.NET Standard 2.1 or .NET 4.x+

Overview

Python

Node

Unity

​Tested Unity versions

​Tested platforms

Tested Unity versions

Tested platforms