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Author: dadechinunity <unitydadechin@gmail.com>
Date:   Sat Jun 28 11:12:11 2025 +0330

    Create README.md

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+# Unity Socket Voice Chat Example 🎙️
+
+This Unity project demonstrates a real-time voice chat system using:
+
+- 🎧 **Microphone input with Opus codec (via Concentus)**
+- 🔊 **Dynamic bandpass audio filtering**
+- 📡 **WebSocket communication (via WebSocketSharp)**
+- 🎮 **Unity AudioSource streaming with a circular buffer**
+
+---
+
+## Features
+
+- ✅ Record microphone audio in real time.
+- ✅ Apply a tunable bandpass filter to remove noise and improve voice clarity.
+- ✅ Encode audio using Opus codec for low-latency transmission.
+- ✅ Transmit voice data over a WebSocket connection.
+- ✅ Decode and playback received voice with a continuous audio stream.
+
+---
+
+## Setup
+
+### 🔧 Requirements
+
+- Unity 2020.3 or newer (tested on Unity 2021+)
+- [WebSocketSharp](https://github.com/sta/websocket-sharp) library
+- [Concentus Opus codec for C#](https://github.com/lostromb/concentus)
+- A WebSocket server (you can use a basic Python or Node.js echo server for testing)
+
+---
+
+## Project Structure
+
+### 🎙️ `OpusMicRecorder.cs`
+
+- Captures microphone audio.
+- Applies a bandpass filter with adjustable `lowFreq` and `highFreq`.
+- Encodes audio using Opus (20ms frame).
+- Sends encoded data through `OnEncodedAudio` event.
+
+### 📤 `OpusVoiceSender.cs`
+
+- Connects to a WebSocket server.
+- Listens for encoded audio from `OpusMicRecorder`.
+- Sends voice packets via WebSocket.
+
+### 📥 `OpusVoiceReceiverWithBuffer.cs`
+
+- Connects to the same WebSocket server.
+- Receives encoded Opus packets.
+- Decodes them into PCM audio.
+- Buffers the audio into a ring buffer for continuous playback using an `AudioSource`.
+
+---
+
+## Usage Instructions
+
+### 1. Add Required Libraries
+
+- Import `WebSocketSharp.dll` into your Unity project.
+- Add the `Concentus` library (via Unity Package Manager or DLL).
+
+### 2. Setup Scene
+
+- Create an empty GameObject in your scene.
+- Attach:
+  - `OpusMicRecorder`
+  - `OpusVoiceSender`
+  - `OpusVoiceReceiverWithBuffer`
+
+