Send Voice Notes over Telegram from Shell Script - Complete Guide

Automate Telegram voice note sharing using the WhatsMate Telegram Gateway REST API

Posted on June 22, 2022   Share on Facebook Share on LinkedIn Share on Twitter Share on Google+

Last reviewed: February 4, 2026  

Automate Telegram Voice Note Sharing with Shell Scripts

Looking to automate voice message delivery, audio recordings, or spoken notifications directly from your terminal? This guide walks you through sending voice note files (OPUS format) to Telegram users using a simple shell script and the WhatsMate Telegram Gateway REST API. Perfect for system administrators, developers, and automation enthusiasts who want to integrate voice messaging into their workflows.

📋 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. Basic shell scripting knowledge - Familiarity with terminal commands
  4. Voice note file ready - Have the OPUS file you want to send available locally
  5. Base64 utility - The base64 command must be available on your system

⚠️ 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.

📝 Step-by-Step Implementation

Follow these steps to send your first voice note to a Telegram user from a shell script:

1. Copy the Script Template

Start by copying the following source code into your script file:

2. Configure a few Parameters

Customize these key parameters in the script:

  • Line 13: Replace YOUR_OWN_INSTANCE_ID_HERE with your Telegram gateway instance ID
  • Lines 14-15: Update YOUR_OWN_CLIENT_ID_HERE and YOUR_OWN_SECRET_HERE with your Client ID and Secret
  • Line 18: Replace 12025550108 with the target phone number (including the country code)
  • Line 19: Replace ../assets/martin-luther-king.opus with the path to your OPUS voice note file
  • Line 20: Replace anyname.opus with the desired filename for the voice note
  • Line 21: Replace I have a dream with an optional caption for your voice note

3. Make the Script Executable

Set execute permissions on your script:

chmod 755 send-telegram-opus.sh

4. Send Your Voice Note

Run the script to deliver your voice note to Telegram:

./send-telegram-opus.sh

🔧 Common Use Cases

This automation approach is ideal for:

  • AI/TTS integration - Generate voice messages using text-to-speech (TTS) APIs and deliver them to Telegram for automated announcements, notifications, or interactive voice responses
  • System monitoring alerts - Send voice alerts for server status or monitoring events
  • Audio notifications - Deliver spoken alerts or voice notifications directly from terminal commands
  • Voice message automation - Send pre-recorded voice messages or announcements via Telegram from system scripts
  • Voice memo distribution - Share recorded voice memos or notes with team members through Telegram

🚀 Get Started Today

Ready to automate your voice note sharing over Telegram? You’ll need a trial account to access the API. Sign up for a 2-week trial and start sending voice notes within minutes!

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