Send Audio Files to Telegram Groups in C#/.NET (Visual Studio 2019) - Complete Guide

Automate Telegram Group Audio Sharing with C#/.NET and Visual Studio 2019

Need to deliver audio content, voice announcements, or sound notifications to Telegram groups from your C#/.NET applications? This guide walks you through sending audio files (MP3 format) to Telegram groups using C# with Visual Studio 2019 and the WhatsMate Telegram Gateway REST API. Perfect for .NET developers, enterprise application developers, and C# programmers who want to integrate group audio delivery into their .NET-based workflows.

Note for Visual Studio 2022 users: If you’re using Visual Studio 2022, please read this Visual Studio 2022 tutorial instead.

📋 Prerequisites

Before you begin, ensure you have:

1. A WhatsMate Telegram Gateway account - Required for API access
2. Group registration - The Telegram group must be registered with the Gateway first
3. Visual Studio 2019 - .NET development environment with C# support
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. Required .NET libraries - This example uses System.Web.Extensions for JSON serialization

⚠️ Important: Telegram groups must be registered with the WhatsMate Telegram Gateway before they can receive messages. Unregistered groups 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 group from a C# application using Visual Studio 2019:

1. Create a New Visual Studio 2019 Project

1. Open Visual Studio 2019
2. Create a new Console Application project
3. Select .NET Framework 4.6.1 or later as the target framework
4. Add reference to System.Web.Extensions (for JSON serialization)

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 21: Replace Muscle Men Club with the name of your target Telegram group
• Line 22: Replace 19159876123 with the phone number of the group admin (including country code)
• Line 25: Replace C:\\TEMP\\ocean-waves.mp3 with the full path to your MP3 audio file
• Line 26: Replace anyname.mp3 with the desired filename for the audio
• Line 27: Replace Enjoy the nature with an optional caption for your audio

4. Build and Run Your C# Application

1. Build your project in Visual Studio 2019
2. Run the application to deliver your audio to the Telegram group

🔧 Common Use Cases

This automation approach is ideal for:

• Enterprise application integration - Send audio notifications from .NET enterprise applications to team collaboration groups
• Windows service integration - Deliver audio alerts from Windows services or background tasks to operations teams
• Desktop application features - Add audio sharing capabilities to Windows Forms or WPF applications for team communication
• Business workflow automation - Integrate audio notifications into business process automation built with .NET
• .NET community content - Share podcasts, music, or audio recordings with .NET/C# Telegram groups

🚀 Get Started Today

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

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