Create instrumental tracks from song URLs with StemSplit
Quick overview Let visitors request a karaoke instrumental via an n8n form. The workflow validates the song URL, removes vocals with StemSplit AI, uploads the MP3 to Google Drive, and emails the requester a download l...
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Quick overview Let visitors request a karaoke instrumental via an n8n form. The workflow validates the song URL, removes vocals with StemSplit AI, uploads the MP3 to Google Drive, and emails the requester a download link—with automatic error emails for invalid URLs or low credits.
How it works 1. A visitor submits your public n8n form with email, song title, and a direct link to an audio file (MP3, WAV, or FLAC).
2. The workflow normalizes the fields and checks that the URL starts with https://.
3. StemSplit checks your credit balance, then runs AI stem separation and returns an instrumental MP3.
4. An HTTP Request downloads the file, Google Drive stores it, and Gmail emails the requester the Drive link.
5. Invalid URLs or insufficient credits trigger separate Gmail notifications so the requester knows what went wrong.
Setup 1. Connect a StemSplit API credential on both StemSplit nodes (create a key at stemsplit.io → Settings → API).
2. Connect Google Drive OAuth2 on the upload node and choose a folder, or keep the default root.