🎙️ Easy Mic for Unity

Professional Real-time Audio Recording & Processing Plugin

🇨🇳 中文版 | 🇺🇸 English

Latest Version: 0.1.3-exp.1 (2026-02-16) · View Changelog

Highlights: Added Mono component stack (`EasyMicrophone`, `VoiceMicrophone`, `PlaybackAudioSourceBehaviour`, `SpeechSynthesizer`), refactored playback/recording subsystems, and refreshed bilingual docs.

Perfect for AI Digital Humans • Voice Interactive Applications • Real-time Audio Processing

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🎯 What is Easy Mic?

Easy Mic is a professional real-time audio recording and processing plugin designed specifically for Unity developers working on voice-interactive applications, AI digital humans, and real-time audio processing projects.

🤖 AI Digital Humans Voice interaction systems

🗣️ Real-time Voice Chat Live conversation systems

🎙️ Voice Commands Recognition systems

📞 VoIP & Comms Communication apps

🎮 Voice Gaming Voice-controlled games

Easy Mic provides the low-latency, high-quality audio foundation your application needs.

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🎬 See It In Action

Unity Digital Human Microphone Recording Plugin
Solving Echo Cancellation for Conversational AI

This video demonstrates how Easy Mic solves critical audio challenges in AI conversation systems, particularly the conversation interruption problem caused by echo and audio feedback.

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✨ Key Features

🎤 Ultra-Low Latency Recording ✅ Native backend for minimal audio delay ✅ Real-time processing for live systems ✅ Cross-platform support	⛓️ Programmable Audio Pipeline ✅ Modular design with chainable processors ✅ Dynamic runtime configuration ✅ Built-in & custom processors
🛡️ Type-Safe & Performance-First ✅ Zero-GC audio processing ✅ Compile-time safety ✅ Thread-safe operations	🔧 Developer-Friendly ✅ Simple API design ✅ Comprehensive documentation ✅ Active community support

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💎 EasyMic APM Extension - Professional 3A Audio Processing

For developers working on Unity AI digital human projects, we offer the EasyMic APM (Audio Processing Module) extension.

🔇 AEC Acoustic Echo Cancellation Eliminates echo and feedback

📢 AGC Automatic Gain Control Maintains consistent audio levels

🎯 ANS Acoustic Noise Suppression Reduces background noise

📧 Contact: unease-equity-5c@icloud.com | 💬 Bilibili: Send private message

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🚀 Quick Start

📦 Installation

1. Open Unity Package Manager
2. Click + → Add package from git URL...
3. Enter: https://github.com/EitanWong/com.eitan.easymic.git#upm
4. Click Add

📋 Import Sample Scene

1. After importing Easy Mic, go to Package Manager
2. Find EasyMic in "In Project" packages
3. Expand Samples section
4. Click Import next to "Recording Example"
5. Open the imported scene to see microphone recording demo

Import the Recording Example sample scene via Package Manager

⚡ Basic Usage

// Ensure permission (Android triggers system request)
if (!PermissionUtils.HasPermission()) return;
// Refresh device list
EasyMicAPI.Refresh();
// Define processor blueprints
var bpCapture = new AudioWorkerBlueprint(() => new AudioCapturer(10), key: "capture");
var bpDownmix = new AudioWorkerBlueprint(() => new AudioDownmixer(), key: "downmix");
// Start recording (auto-selects default device/channel)
var handle = EasyMicAPI.StartRecording(SampleRate.Hz16000);
// Attach processors
EasyMicAPI.AddProcessor(handle, bpDownmix);
EasyMicAPI.AddProcessor(handle, bpCapture);
// ... later: stop and get captured clip
EasyMicAPI.StopRecording(handle);
var clip = EasyMicAPI.GetProcessor(handle, bpCapture)?.GetCapturedAudioClip();

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🧪 Sample Projects Overview

EasyMic includes ready-to-run samples under EasyMic/Packages/com.eitan.easymic/Samples~/ so developers can quickly validate workflows.

Sample	Purpose	Best For
Recording Example	Basic microphone recording flow and WAV persistence.	First-time integration and device/permission checks.
Playback Example	Core playback flow using EasyMic playback stack.	Verifying low-latency output and playback controls.
AudioPlayback API Example	Programmatic playback API usage and queue-style audio feeding.	Building custom runtime audio playback logic.
SherpaONNXUnity ASR Example	Real-time speech recognition pipeline with Sherpa ONNX + EasyMic input.	Speech-to-text applications and voice command prototypes.
SherpaONNXUnity KWS Example	Keyword spotting / wake-word workflow with Sherpa ONNX.	Wake-word activation and always-listening assistants.
AIChat Example	End-to-end AI voice chat sample (ASR + LLM + TTS + playback orchestration).	Direct starting point for digital human / AI avatar apps.

AIChat Sample Notes

• The AIChat Example is designed as a production-oriented reference pipeline for conversational digital humans.
• It demonstrates end-to-end flow from microphone input to speech recognition, LLM response generation, and speech synthesis playback.
• Install com.eitan.sherpa-onnx-unity before importing/running this sample.

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📚 Documentation

📖 Complete Documentation Available

📘 Getting Started Installation & first steps	🏗️ Core Concepts Architecture overview	⛓️ Audio Pipeline Processing system	🧩 Processors Available components
🎛️ Mono Components Mic / ASR / Playback / TTS	⚡ API Reference Complete documentation	💡 Best Practices Optimization tips	🔧 Troubleshooting Common solutions	🚀 Examples Example code

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🎯 Use Cases

🤖 AI Digital Humans Real-time voice interaction Conversation AI with echo cancellation Natural language processing

🎮 Gaming Applications Voice chat in multiplayer Voice commands for control Real-time audio effects

📞 Communication Apps VoIP applications Video conferencing tools Real-time audio streaming

🎙️ Content Creation Podcast recording tools Voice-over applications Audio content workflows

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📋 System Requirements

Unity 2021.3 LTS or higher

Platforms Windows, macOS, Linux Android, iOS

Dependencies .NET Standard 2.1+

Permissions Microphone access required

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📄 License

This project is licensed under the GPLv3 License - see the LICENSE.md file for details.

✅ Open Source Friendly Free to use in open source projects Commercial use allowed with GPL compliance

⚠️ Commercial Projects Source code disclosure required GPL compliance mandatory for distribution

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🤝 Community & Support

🐛 Issues & Bug Reports GitHub Issues Check Troubleshooting first

💬 Community Discussion GitHub Discussions Share projects & get help

📧 Professional Support Email | Bilibili PM Provide technical support

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🌟 Why Choose Easy Mic?

✅ Developer-Focused Extensive documentation, examples, and community support

✅ Performance-Optimized Zero-GC audio processing for maximum performance

✅ Flexible Architecture Modular design allows easy customization and extension

✅ Cross-Platform Single API works across all major Unity platforms

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🚀 Ready to Build Amazing Voice-Interactive Applications?

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Made with ❤️ by Eitan
Star ⭐ this repo if Easy Mic helps your project!