{
  "name": "Cloudinary API",
  "type": "httpHeaderAuth",
  "authParameter": {
    "type": "header",
    "key": "Authorization",
    "value": "Basic {{Buffer.from('your_api_key:your_api_secret').toString('base64')}}"
  }
}

n8n Workflow: Obsidian Notes Read Aloud using AI (Podcast Feed)

This n8n workflow is designed to convert your Obsidian notes into an audio format, making them available as a podcast feed. It leverages AI for text-to-speech conversion, allowing you to listen to your notes on the go.

What it does

This workflow automates the following steps:

1. Triggers on Webhook: The workflow starts when a webhook is received. This acts as the entry point for initiating the note conversion process.
2. Retrieves Data from Google Sheets: It fetches data from a specified Google Sheet, likely containing information about the Obsidian notes to be processed (e.g., note titles, content URLs, status).
3. Transforms Data (Edit Fields): The data retrieved from Google Sheets is then processed to set or modify specific fields, preparing it for the next steps. This might involve extracting relevant text or metadata.
4. Generates Audio with OpenAI: The core of the workflow uses the OpenAI node to convert the text content of the Obsidian notes into speech. This creates the audio files for your podcast.
5. Aggregates Results: The generated audio files and associated metadata are then aggregated, likely to prepare them for a consolidated output.
6. Responds to Webhook: Finally, the workflow sends a response back to the initial webhook, indicating the completion or status of the process.

Prerequisites/Requirements

To use this workflow, you will need:

• n8n Instance: A running instance of n8n.
• Google Sheets Account: With a spreadsheet containing your Obsidian note data. You'll need to configure credentials for n8n to access it.
• OpenAI API Key: An OpenAI account and an API key for text-to-speech generation.
• Webhook Integration: A system or method to trigger the webhook that starts this workflow (e.g., an Obsidian plugin, another automation tool, or manual trigger).

Setup/Usage

1. Import the Workflow: Download the provided JSON and import it into your n8n instance.
2. Configure Credentials:
   • Google Sheets: Set up your Google Sheets credentials within n8n.
   • OpenAI: Set up your OpenAI API key as a credential in n8n.
3. Configure Nodes:
   • Google Sheets Node (ID: 18): Specify the Spreadsheet ID and the range or sheet name from which to read your Obsidian note data.
   • OpenAI Node (ID: 1250): Ensure it's configured to use your OpenAI credential and the correct text field from your Google Sheets data for text-to-speech conversion.
   • Webhook Node (ID: 47): After saving the workflow, activate it to get the unique webhook URL. This URL will be used to trigger the workflow.
4. Trigger the Workflow: Send an HTTP POST request to the webhook URL obtained in the previous step to initiate the process.

This workflow provides a robust foundation for transforming your written notes into an accessible audio format, enhancing your productivity and learning experience.