Introducing ODIN Voice Chat

Voice Chat for your Apps, Games and Websites

Experience unparalleled audio quality and seamless integration with our next-generation Voice Chat SDK, including proximity chat for immersive, directly integrated 3D voice experiences. Designed for Unity, Unreal Engine, and even your favorite web browser, our SDK offers noise suppression, ultra-low-latency, and scalable architecture with both hosting and self-hosting options. Sync text messages, documents, or game states effortlessly using our versatile data channel. Transform your gaming and communication experience today.

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Made with ❤️ by 4Players in Germany 🇩🇪

Trusted by developers and studios all around the world.

What Others Say

Reinaldo Vieira

Lead Developer at Combat Waffle Studios

ODIN was one of the best decisions we made regarding voice as it integrates with Unreal Engine’s built-in spatialization & occlusion systems, compared to competitors, this provided a much more immersive experience for our player-base. Their team was extremely helpful and quick in sorting out any issues we had during our setup process.

Fabian Boulegue

Head of Producing at Aerosoft

We have been the first to go live with ODIN onboard and what can we say? It was worth the risk, the ODIN integration was smooth and the ODIN dev team always supported us in the best manner. We are happy for the mutually beneficial and friend-like partnerships we share with 4Players.

Sebastien Couture

CEO at 01 Studio

ODIN is by far the best professional approach for a multiplayer cross platform voice chat system for your video game in-between Steam Decks, macOS and Windows.

Benedikt Engelhard

CEO und Founder of Cykyria - Virtual Reality

I’ve been using ODIN since the beta release with a multiplayer VR game and it is working flawlessly! It’s very easy to set up and integrate into the project. You can do all sorts of cool things, it’s basically just an actor sound component that you can use and apply effects to like any other sound in Unreal. This is a 3rd-party service, it will work across your game servers in case you want that.

David Liebemann

CEO at SciCode Studio

I have been working with ODIN both in Unreal and Unity for quite some time now and massively appreciate the easy integration and the flexibility it provides. I can adapt ODIN to any use case I can find, it’s massively scalable and it supports all the fancy features like 3D audio, audio occlusion and voice filters. From now on my first choice for any application that requires Voice Chat.

Made for Developers

In just a few lines of code you can connect and join a room. See the full list of our SDKs here.

Unreal Engine Editor mit ODIN Blueprints

Manage all aspects of voice within the Unreal Engine Editor and integrate it quickly into your game or XR experience. Our ODIN SDK leverages Unreal Engines audio processing and is deeply integrated into Unreal Engine 4 (UE4) as well as Unreal Engine 5 (UE5) and supports Blueprints and automatic proximity chat (3D spatial audio).

Get Started for Free

Watch video tutorial | Explore the docs | Download SDK

Manage all aspects of voice within Unity and integrate it quickly into your game or XR experience. Our ODIN SDK is deeply integrated into Unity and features automatic proximity chat (3D spatial audio). Use the tools you know, like AudioSource, AudioListener or the built-in Unity AudioMixer, for your voice chat integration.

Get Started for Free

Watch video tutorial | Explore the docs | Download SDK

Add ODIN to your C or C++ projects with our simple to use ODIN Core SDK. Our Core SDK is the foundation of all other SDKs and features an easy-to-use interface.

// Generate access token - should be done on a server
char room_token[512];
OdinTokenGenerator* generator = odin_token_generator_create("__YOUR_ACCESS_KEY__");
odin_token_generator_create_token(generator, "My Room", "John Doe", room_token, sizeof(room_token));
odin_token_generator_destroy(generator);

// Setup event handler and join a room.
OdinRoomHandle room = odin_room_create();
odin_room_set_event_callback(room, handle_odin_event, NULL);
odin_room_join(room, gateway_url, room_token);

Explore the docs | Download SDK

Manage all aspects of voice within Xcode and integrate it in quickly into your game or XR experience. Add real-time voice communication and text messaging in no time to your iOS and macOS apps or games. Our SDK is built on top of Apple’s Audio implementation and features automatic 3D spatial audio.

Get Started for Free

Explore the docs

Integrating our Voice SDK in any website with vanilla JavaScript is seamless, effortless, and easy. Add our script and join a room, that’s it.

<html>
    <head>
        <script type="text/javascript" src="https://4npcdn.com/2355/odin/javascript/latest/odin.min.js"></script>
        <script type="text/javascript">
            var connectOdin = async function(room, user) {
                const token = await getToken(room, user);
                const odinRoom = await ODIN.OdinClient.initRoom(token);
                await odinRoom.join();
                return odinRoom;
            }
            connectOdin("My Room", "John Doe").then(odinRoom => {
               console.log("Connected to room", odinRoom);
            });
        </script>
    </head>
</html>

Explore the docs | Download SDK

Use our NodeJS ODIN SDK to create AI bots or scripts that interacts with your game or XR experience. Useful for content moderation, analytics, recording and AI enhanced human interactions.

// Load the odin module and other libs
import odin from '@4players/odin-nodejs';
const {OdinClient} = odin;

const odinClient = new OdinClient();
const room = odinClient.createRoom("__YOUR_ACCESS_KEY__", roomName, userName);

// Send a message to the room using a JSON object (can be anything you like)
const sendMessage = (text) => {
    const message = {
        kind: 'message',
        payload: text
    }
    room.sendMessage(new TextEncoder().encode(JSON.stringify(message)));
}

// Listen on PeerJoined messages and send a text message into the room
room.addEventListener('PeerJoined', (event) => {
    sendMessage(`${event.userId} joined the room.`);
});

// Listen on PeerLeft messages and send a text message into the room
room.addEventListener('PeerLeft', (event) => {
    sendMessage(`${event.userId} has left the room.`);
});

// Join the room and start receiving events
room.join("gateway.odin.4players.io");

Explore the docs | Download SDK

Adding our Voice SDK to any modern JavaScript framework like Angular, Svelve, Vue, React is super easy. Just add our npm package @4players/odin to your package.json and connect a room. That’s it.

import { OdinClient } from '@4players/odin';
import { TokenGenerator } from "@4players/odin-tokens";

const generator = new TokenGenerator(apiKey);
const token = generator.createToken("My Room", "John Doe");
const odinRoom = await OdinClient.initRoom(token);
await odinRoom.join();

Explore the docs | Download SDK

Proximity Voice Chat

ODIN integrates seamlessly into Unity and Unreal Engine and provides native and easy to implement 3D proximity chat with audio occlusion.

Massively Scalable

ODIN supports hundreds of concurrent users in the same room with automated partitioning of data packets based on position and super efficent servers.

Features

Deep Game Engine Integration

ODIN is integrated directly into Unity and Unreal Engine 4 and 5, offering a seamless and powerful integration into new and existing apps, games and applications.

Host Yourself or Get Hosted

Our software runs in the highly optimized 4Players Cloud or you can host servers yourself in any cloud you want or on-premise on your own hardware.

… and much more

Outstanding Voice Quality

Our proprietary technology based on latest internet technologies like QUIC/HTTP3 is built specifically for voice and low-latency data synchronization.

Real-Time Data and Networking

Unlike comparable tools, ODIN is integrated directly into existing game engines, offering a seamless and powerful connection.

Native Apple Swift SDK

Implement real-time voice in your macOS, iOS, tvOS and watchOS apps with our native Swift SDK. It’s easy to use and integrates seamlessly into your existing code.

GDPR Compliant

Privacy and security is very important to us. ODIN is completely user agnostic and we don’t harvest any data or tell you how things should work or look. You are in complete control.

Horizontally Scalable

Our server is a single binary that can be scaled horizontally with ease using standard container orchestration software like Kubernetes, ECS or Openshift.

Web SDK

We provide a JavaScript/TypeScript SDK that can be used to integrate ODIN into any web application or website and that is even cross-platform compatible with your Unity or Unreal Engine app.

Our Competitive Edge

Discover how ODIN Voice tands out among the top voice SDKs in the industry.

	ODIN	Photon	TeamSpeak	Agora	EOS
Hosting & Pricing
Cloud hosting Let us deal with the setup, administration and bandwidth costs. ODIN leverages worldwide production-ready and battle-tested server infrastructure from 4Netplayers, who have been providing voice and game servers for more than 20 years.
Let us deal with the setup, administration and bandwidth costs. ODIN leverages worldwide production-ready and battle-tested server infrastructure from 4Netplayers, who have been providing voice and game servers for more than 20 years.
Self hosting ODIN infrastructure can be hosted on-premise. Run our server software on your own infrastructure allowing you complete control and customization of your deployment environment. ODIN comes with Docker support for easy deployment wherever needed.
ODIN infrastructure can be hosted on-premise. Run our server software on your own infrastructure allowing you complete control and customization of your deployment environment. ODIN comes with Docker support for easy deployment wherever needed.
Traffic included Traffic costs can grow significantly if voice chat is used heavily or by many users and it’s hard to estimate those costs. Every month will have its surprise day when you get your invoice. Deals made for 4Netplayers with cloud and server providers all over the world allow us to include traffic costs in all our tiers. No hidden or hard to estimate costs for you.
Traffic costs can grow significantly if voice chat is used heavily or by many users and it’s hard to estimate those costs. Every month will have its surprise day when you get your invoice. Deals made for 4Netplayers with cloud and server providers all over the world allow us to include traffic costs in all our tiers. No hidden or hard to estimate costs for you.
Users per room How many users can join the same room to talk together. MMORPGs or larger battle royal games should be able to bring hundreds of users together. There is no limit for users per room at ODIN. However, there is a technical limit that depends on the implementation (i.e. a lot of voice communication, or more text and simple data). 2000 users should be no issues at all.	2000+	50	1000	128	16
How many users can join the same room to talk together. MMORPGs or larger battle royal games should be able to bring hundreds of users together. There is no limit for users per room at ODIN. However, there is a technical limit that depends on the implementation (i.e. a lot of voice communication, or more text and simple data). 2000 users should be no issues at all.
Platform & Engine Integration
Deep Unity Integration ODIN provides a full-featured Unity SDK and leverages Unity’s audio processing pipeline for capture and playback. Developers work with Unity tools they know like AudioSource and AudioMixers and get 3D positional audio automatically. ODIN fully integrates into more advanced 3D audio solutions and comes with a couple of examples and scripts for easy integration of different materials and their damping effects (like glass or concrete).
ODIN provides a full-featured Unity SDK and leverages Unity’s audio processing pipeline for capture and playback. Developers work with Unity tools they know like AudioSource and AudioMixers and get 3D positional audio automatically. ODIN fully integrates into more advanced 3D audio solutions and comes with a couple of examples and scripts for easy integration of different materials and their damping effects (like glass or concrete).
Deep Unreal Engine Integration Many voice SDKs are just a wrapper around browser based WebRTC libraries. ODIN offers native Unreal Engine (UE4 & UE5) support with simple to use Blueprint support for easy and reliable voice integration. Use the tools you know within the Unreal Engine.
Many voice SDKs are just a wrapper around browser based WebRTC libraries. ODIN offers native Unreal Engine (UE4 & UE5) support with simple to use Blueprint support for easy and reliable voice integration. Use the tools you know within the Unreal Engine.
Unreal Engine 5 support Unreal Engine 5 is best suited for large open-world games. This requires a reliable voice technology for as many users. ODIN is a great fit and offers full Unreal Engine 5 support.
Unreal Engine 5 is best suited for large open-world games. This requires a reliable voice technology for as many users. ODIN is a great fit and offers full Unreal Engine 5 support.
Web Support ODIN is available for the web as vanilla JavaScript script or `npm` package and can be integrated into websites or apps built with web technologies (like Angular, Vue, React, ReactNative, Svelte, …) in a couple of minutes. ODIN cross-platform compatibility allows users to interact (i.e. chat, realtime data synchronization) with each other independently where they are. Think about users talking within a CRM tool with users running in a virtual VR shopping center. All this is possible with ease with ODIN.
ODIN is available for the web as vanilla JavaScript script or `npm` package and can be integrated into websites or apps built with web technologies (like Angular, Vue, React, ReactNative, Svelte, …) in a couple of minutes. ODIN cross-platform compatibility allows users to interact (i.e. chat, realtime data synchronization) with each other independently where they are. Think about users talking within a CRM tool with users running in a virtual VR shopping center. All this is possible with ease with ODIN.
Swift SDK Apple developers are picky about their tools as they are used to work with the best tech. Our Swift SDK offers a quick and easy integration into the Apple eco-system. The SDK comes with Playgrounds to learn the SDK very quickly and integrates seamlessly with AVAudioEngine.
Apple developers are picky about their tools as they are used to work with the best tech. Our Swift SDK offers a quick and easy integration into the Apple eco-system. The SDK comes with Playgrounds to learn the SDK very quickly and integrates seamlessly with AVAudioEngine.
Core Communication Features
Native Spatial Audio Spatial audio is a feature that allows users to experience enhanced immersion and a sense of presence by creating a 3D soundscape that reflects the positions and movements of the participants within a virtual environment. This can help to create a more engaging and realistic experience for users, as the sound seems to be coming from the direction of the speaker, rather than from a fixed position in the room.
Spatial audio is a feature that allows users to experience enhanced immersion and a sense of presence by creating a 3D soundscape that reflects the positions and movements of the participants within a virtual environment. This can help to create a more engaging and realistic experience for users, as the sound seems to be coming from the direction of the speaker, rather than from a fixed position in the room.
Client-Server There are two basic networking topologies possible: Peer to Peer and Client-Server. In peer to peer solutions there is no central hub but each user must send his data to each other user. Data traffic grows exponentially with each additional user and does not work for more than 4 users reliable. Not considering issues with firewalls, NAT and many other shortcomings. Client-server software has a central hub and can handle thousands of users.
There are two basic networking topologies possible: Peer to Peer and Client-Server. In peer to peer solutions there is no central hub but each user must send his data to each other user. Data traffic grows exponentially with each additional user and does not work for more than 4 users reliable. Not considering issues with firewalls, NAT and many other shortcomings. Client-server software has a central hub and can handle thousands of users.
Latest technology Most voice SDKs are built on top of WebRTC. WebRTC is a monstrous library to manage all sorts of real-time communication into browsers. WebRTC is a very old and very complex piece of software. ODIN is built from scratch on latest tech like HTTP3/QUIC on a proprietary protocol that is developed with deep game engine integration and spatial 3D audio support in mind.
Most voice SDKs are built on top of WebRTC. WebRTC is a monstrous library to manage all sorts of real-time communication into browsers. WebRTC is a very old and very complex piece of software. ODIN is built from scratch on latest tech like HTTP3/QUIC on a proprietary protocol that is developed with deep game engine integration and spatial 3D audio support in mind.
Multi-room support Voice solutions typically use a room or channel based approach where all users connected to the same room or channel can talk to each other. Some use-cases require users to be able to join multiple rooms at the same time. ODIN comes with native multi-room support. Every user can join as many rooms as they like. There can be a 3D positional audio chat that mimics real voice and in addition to that users can have a walkie-talkie to talk to users that are out of reach. You can also define rooms that are just used to real-time data synchronization.
Voice solutions typically use a room or channel based approach where all users connected to the same room or channel can talk to each other. Some use-cases require users to be able to join multiple rooms at the same time. ODIN comes with native multi-room support. Every user can join as many rooms as they like. There can be a 3D positional audio chat that mimics real voice and in addition to that users can have a walkie-talkie to talk to users that are out of reach. You can also define rooms that are just used to real-time data synchronization.
Intrinsic data protection ODIN is completely stateless. The authentication works with a single token created by you per user and room that stores everything required for the service. This token is not stored anywhere in the ODIN infrastructure. Rooms are automatically created once the first user joins the room and are deleted once the last user left the room. There is no database in the background. ODIN does not collect or store any data at all.
ODIN is completely stateless. The authentication works with a single token created by you per user and room that stores everything required for the service. This token is not stored anywhere in the ODIN infrastructure. Rooms are automatically created once the first user joins the room and are deleted once the last user left the room. There is no database in the background. ODIN does not collect or store any data at all.
Real-time data synchronization ODIN allows developers to sync data per user and per room in real-time. Whenever something changes in this data-set, it’s synced with all other users connected to the same room in real-time. You can sync the players positions in real-time (i.e. geolocation in met averse applications) or a text-chat-history in a room with easy.
ODIN allows developers to sync data per user and per room in real-time. Whenever something changes in this data-set, it’s synced with all other users connected to the same room in real-time. You can sync the players positions in real-time (i.e. geolocation in met averse applications) or a text-chat-history in a room with easy.

Supported Platforms

Different platforms, same code, equal performance. We support all major platforms, including iOS, Android, Windows, Mac, Linux, and more.

Get Started

Experience Yourself

Download our samples and experience spatial 3D audio with friends, family and colleagues

Open Source

Download and test our PUN based multiplayer sample built with Unity. We provide all the source-code in our Github repository. The sample also features many scripts for audio effects like damping and general bookkeeping stuff.

Multiplatform Showcase

In this sample game, you run around a nice looking neighborhood and can talk to other players with 3D positional voice and a walkie-talkie in multiple channels. We also feature a web-based commander that you can use to interact with players directly from your browser.

FPS Shooter

A simple but fun old style FPS shooter on desert style maps. ODIN 3D positional voice is integrated so that you can talk to other players with voice or radio broadcast. Have fun!

SwiftUI Sample

A simple but fully functional SwiftUI sample that leverages OdinKit to build an iOS app that allows you to chat with friends in no time.

Spatial Realism with ODIN

Experience the revolution in game communication with ODIN’s Voice Chat. Perfect for Unity, Unreal, and other 3D engines, our technology brings voice to life. Hear voices change with distance, direction, and in-game barriers, creating an unmatched realistic audio experience. Watch our video to see how ODIN transforms real-time voice chat, making it an integral part of your game’s world.