Send Audio Files over Telegram in C#/.NET (Visual Studio 2022) - Complete Guide

Automate Telegram Audio Sharing with C#/.NET and Visual Studio 2022

Looking to automate Telegram audio file sharing, voice message delivery, or sound notifications from your modern C#/.NET applications? This guide walks you through sending audio files (MP3 format) to Telegram users using C# with Visual Studio 2022 and the WhatsMate Telegram Gateway REST API. Perfect for .NET developers using the latest Visual Studio IDE who want to integrate audio content delivery into their C#-based workflows.

Note for Visual Studio 2019 users: If you’re using Visual Studio 2019, please read this Visual Studio 2019 tutorial instead.

📋 Prerequisites

Before you begin, ensure you have:

1. A WhatsMate Telegram Gateway account - Required for API access
2. Recipient registration - Each recipient must register with the Gateway first
3. Visual Studio 2022 - Latest .NET development environment with modern C# features
4. Basic C# knowledge - Familiarity with C# programming and .NET framework
5. Audio file ready - Have the MP3 file you want to send available locally
6. Modern .NET libraries - This version uses System.Text.Json for serialization (included in .NET 6+)

⚠️ Important: Recipients must register with the WhatsMate Telegram Gateway before they can receive messages. Unregistered users will not receive any messages from the Gateway. Registration instructions are available on the official WhatsMate site.

🎥 Video Walkthrough

📝 Step-by-Step Implementation

Follow these steps to send your first audio file to a Telegram user from a C# application using Visual Studio 2022:

1. Create a New Visual Studio 2022 Project

1. Open Visual Studio 2022
2. Create a new Console Application project
3. Select .NET 6.0 or later as the target framework

2. Copy the C# Code Template

Replace the default Program.cs content with the following source code:

3. Configure a few Parameters

Customize these key parameters in the C# code:

• Lines 10-12: Replace YOUR_INSTANCE_ID, YOUR_CLIENT_ID_HERE, and YOUR_CLIENT_SECRET_HERE with your gateway instance ID, Client ID, and Secret
• Line 20: Replace 12025550105 with the target phone number (including the country code)
• Line 22: Replace C:\\TEMP\\ocean-waves.mp3 with the path to your MP3 audio file
• Line 23: Replace anyname.mp3 with the desired filename for the audio
• Line 24: Replace Enjoy the nature with an optional caption for your audio

4. Send Your Audio File

Build and run your C# application in Visual Studio 2022 to deliver your audio to Telegram.

🔧 Common Use Cases

This automation approach is ideal for:

• Cloud-native applications - Integrate Telegram audio sharing with cloud-based .NET applications and microservices
• Modern desktop applications - Add Telegram audio sharing capabilities to WPF, WinUI, or MAUI applications
• System monitoring alerts - Send audio alerts for server status or monitoring events from Windows applications using .NET 6+
• Customer service automation - Deliver audio responses or information to clients through Telegram using the latest .NET technologies
• Integration with .NET 6+ audio processing - Combine with modern .NET libraries that generate or modify audio files for Telegram delivery

🚀 Get Started Today

Ready to automate your audio sharing over Telegram with modern C#/.NET? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending audio files within minutes!

Next Steps: Once you’ve mastered basic audio sending, explore advanced features like sending images, documents, or group messages through the WhatsMate Telegram Gateway API documentation.