Transcribing Telegram voice messages using Whisper and Gemini with a fallback mechanism

🎙️ n8n Workflow: Voice Message Transcription with Access Control

This n8n workflow enables automated transcription of voice messages in Telegram groups with built-in access control and intelligent fallback mechanisms. It's designed for teams that need to convert audio messages to text while maintaining security and handling various audio formats.

---

📌 Section 1: Trigger & Access Control

⚡ Receive Message (Telegram Trigger) Purpose: Captures incoming messages from users in your Telegram group.

How it works: When a user sends a message (voice, audio, or text), the workflow is triggered and the sender's information is captured.

Benefit: Serves as the entry point for the entire transcription pipeline.

🔐 Sender Verification Purpose: Validates whether the sender has permission to use the transcription service.