Create multi-speaker podcasts with Google Sheets, ElevenLabs v3, and Drive

This workflow automates the creation of realistic Multi-speaker podcasts using ElevenLabsv3 API by reading a script from Google Sheets and saving the final MP3 file to Google Drive. 1. Data Source – Dialogue scripts are stored in a Google Sheet. Each row contains: Speaker name (optional) Voice ID (from ElevenLabs) Text to be spoken 2. Data Preparation – The workflow transforms the spreadsheet content into the proper JSON format required by the ElevenLabs API. 3. Podcast Generation – ElevenLabs’ Eleven v3 model converts the prepared text into expressive, natural-sounding dialogue. It supports not only speech but also non-verbal cues and audio effects (e.g., \[laughs], \[whispers], \[clapping]). 4. File Storage – The generated audio file is automatically uploaded to Google Drive, organized by timestamped filenames. --- Key Advantages Seamless Automation – From dialogue writing to final audio upload, everything runs automatically in one workflow. Multi-Speaker Support – Easily assign different voices to multiple characters for dynamic conversations. Expressive & Realistic Output – Supports emotions, speech styles, and ambient effects, making podcasts more immersive. Flexible Content Input – Scripts can be collaboratively written and edited in Google Sheets, with no technical knowledge required. Scalable & Reusable – Can generate multiple podcast episodes in seconds, ideal for content creators, educators, or businesses. Cloud Integration – Final audio files are securely stored in Google Drive, ready to be shared or published. --- How It Works The workflow processes a structured script from a spreadsheet and uses AI to generate a realistic conversation. 1. Manual Trigger: The workflow is started manually by a user clicking "Execute workflow" in n8n. 2. Get Dialogue: The "Get dialogue" node fetches the podcast script data from a specified Google Sheet. The sheet should contain columns for Speaker (optional), Voice ID, and the dialogue Input/Text. 3. Prepare Dialogue: The "Code" node transforms the raw sheet data into the precise JSON format required by the ElevenLabs API. It creates an array of objects where each object contains the text and the corresponding voiceid for each line of dialogue. 4. Generate Podcast: The "HTTP Request" node sends a POST request to the ElevenLabs Text-to-Dialogue API endpoint (/v1/text-to-dialogue). It sends the transformed dialogue array in the request body, instructing the API to generate a single audio file with a conversation between the specified voices. 5. Upload File: The "Upload file" node takes the audio file response from ElevenLabs and saves it to a designated folder in Google Drive.. --- Set Up Steps To use this workflow, you must complete the following configuration steps: 1. Prepare the Google Sheet: Clone the Template: Duplicate the provided Google Sheet template into your own Google Drive. Fill the Script: Column A (Speaker): Optional. Add speaker names for your reference (e.g., "Host", "Guest"). Column B (Voice ID): Mandatory. Enter the unique Voice ID for each line from ElevenLabs. Column C (Input): Mandatory. Write the dialogue text for each speaker. You can use [non-speech audio events] like [laughs] or [whispers] to add expression. 2. Configure ElevenLabs API Credentials: Login or create FREE account on Elevenlabs Edit the "Generate podcast" node's credentials. Create an HTTP Header Auth credential named "ElevenLabs API". Set the Name to xi-api-key and the Value to your actual ElevenLabs API key. 3. Configure Google Services: Google Sheets: Ensure the "Get dialogue" node has valid OAuth credentials and that the documentId points to your copy of the script sheet. Google Drive: Ensure the "Upload file" node has valid OAuth credentials and that the folderId points to the correct Google Drive folder where you want the audio files saved. --- Need help customizing? Contact me for consulting and support or add me on Linkedin.