Generar voz de IA desde un guion y subir a Google Drive

• •Credenciales de API de Google Drive
• •Pueden requerirse credenciales de autenticación para la API de destino
• •Credenciales de API de Google Sheets

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            "Computer File Name": "={{ $('Writing File Output Onto Disk').item.json.fileName }}",
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        "content": "## Generate AI Voiceovers from Scripts and Upload to Google Drive\n\nThis is the final piece of the AI content factory. This workflow takes your text-based video scripts and automatically generates high-quality audio voiceovers for each one, turning your text into ready-to-use audio assets for your video ads.\n\nGo from a spreadsheet of text to a folder of audio files, completely on autopilot.\n\n## ⚠️ CRITICAL REQUIREMENTS (Read First!)\nThis is an advanced, self-hosted workflow that requires specific local setup:\n\n*   **Self-Hosted n8n Only:** This workflow uses the `Execute Command` and `Read/Write Files` nodes, which requires you to run your own instance of n8n. It will not work on n8n Cloud.\n*   **FFmpeg Installation:** You must have [FFmpeg](https://ffmpeg.org/download.html) installed on the same machine where your n8n instance is running. This is used to convert the audio files to a standard format.\n\n## What it does\nThis is Part 3 of the AI marketing series. It connects to the Google Sheet where you generated your video scripts (in Part 2). For each script that hasn't been processed, it:\n\n1.  Uses the Google Gemini Text-to-Speech (TTS) API to generate a voiceover.\n2.  Saves the audio file to your local computer.\n3.  Uses FFmpeg to convert the raw audio into a standard `.wav` file.\n4.  Uploads the final `.wav` file to your Google Drive.\n5.  Updates the original Google Sheet with a link to the audio file in Drive and marks the script as complete.\n\n## How to set up\n**IMPORTANT:** This workflow is Part 3 of a series and requires the output from Part 2 (\"Generate AI Video Ad Scripts\").\n\n**If you need Part 1 or Part 2 of this workflow series, you can find them for free on [my n8n Creator Profile](https://n8n.io/creators/jj-tham/).**\n\n1.  **Connect to Your Scripts Sheet:** In the \"Getting Video Scripts\" node, connect your Google Sheets account and provide the URL to the sheet containing your generated video scripts from Part 2.\n2.  **Configure AI Voice Generation (HTTP Request):**\n    *   In the \"HTTP Request To Generate Voice\" node, go to the **Query Parameters** and replace `INSERT YOUR API KEY HERE` with your Google Gemini API key.\n    *   In the **JSON Body**, you can customize the voice prompt (e.g., change `<INSERT YOUR DESIRED ACCENT HERE>`).\n3.  **Set Your Local File Path:** In the first \"Read/Write Files from Disk\" node, update the **File Name** field to a valid directory on your local machine where n8n has permission to write files. Replace `/Users/INSERT_YOUR_LOCAL_STORAGE_HERE/`.\n4.  **Connect Google Drive:** In the \"Uploading Wav File\" node, connect your Google Drive account and choose the folder where your audio files will be saved.\n5.  **Update Your Tracking Sheet:** In the final \"Uploading Google Drive Link...\" node, ensure it's connected to the same Google Sheet from Step 1. This node will update your sheet with the results."
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        "content": "**👇 STEP 1: CONNECT TO YOUR SCRIPTS**\n\nThis workflow reads the scripts you generated in Part 2.\n\n**Action Required:**\n1. Connect your Google Sheets account.\n2. Paste the URL of the Google Sheet that was the **output** of the \"Generate AI Video Ad Scripts\" workflow.\n\nThe **Filter** node ensures we only process scripts that don't have a voiceover yet."
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        "content": "**🧠 STEP 2: CONFIGURE AI VOICE**\n\nThis node generates the audio using Google Gemini's TTS API.\n\n**Action Required:**\n1.  Go to **Query Parameters** and insert your Gemini API Key.\n2.  (Optional) In the **JSON Body**, edit the prompt to change the accent or delivery style."
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        "content": "**⚠️ STEP 3: CONFIGURE LOCAL FILE PROCESSING**\n\n**This section is for SELF-HOSTED n8n ONLY and requires FFmpeg to be installed on your machine.**\n\n**Action Required:**\n1.  Click the first **Read/Write Files from Disk** node.\n2.  Update the **File Name** with a real folder path on your computer (e.g., `/home/n8n/audio/` or `C:\\n8n\\audio\\`)."
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        "content": "**✅ STEP 4: SET UPLOAD DESTINATION**\n\nThis node uploads your final `.wav` audio files.\n\n**Action Required:**\n1.  Connect your Google Drive account.\n2.  (Optional) Choose a specific folder to keep your voiceovers organized."
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        "content": "**🚀 STEP 5: UPDATE TRACKING SHEET**\n\nThis final step updates your script sheet with links to the new audio files in Google Drive and marks them as \"Yes\" so they don't get processed again."
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