Transcribe Voice Messages from Telegram using OpenAI Whisper-1

This n8n workflow processes incoming Telegram messages, differentiating between text and voice messages. How it works: Message Trigger: The workflow initiates when a new message is received via the Telegram "Message Trigger" node. Switch Node: This node acts as a router. It examines the incoming message: If the message is text, it directs the flow along the "text" branch. If the message contains voice, it directs the flow along the "voice" branch. Get Audio File: For audio messages, this node downloads the audio file from Telegram. Transcribe Audio: The downloaded audio file is then sent to an "OpenAI Transcribe Recording" node, which uses OpenAI's whisper-1 speech-to-text model to convert t

Help me set up the n8n workflow "Transcribe Voice Messages from Telegram using OpenAI Whisper-1" (https://n8n.io/workflows/4528). It uses: Telegram, OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.