How to Send an MPEG Audio File as a WhatsApp Voice Message via n8n?

I'm working on an n8n workflow where I generate an MPEG audio file using ElevenLabs and need to send it as a voice message in WhatsApp via the WhatsApp Cloud API.

I'm facing an issue when making the HTTP Request in n8n

Should the file be in a specific format like OGG or OPUS instead of MPEG?🔹 Is there a specific API parameter to make WhatsApp recognize it as a voice message instead of an audio file?🔹 Has anyone successfully implemented this in n8n?

Any insights or solutions would be greatly appreciated! 🙏🚀

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