How to make video automation| Object Speak Youtube Video Automation

Introduction to n8n Automation

What is n8n?

n8n is an automation tool that helps you connect different apps and services using workflows.


Instead of doing tasks manually, n8n allows you to automate them using simple steps called nodes.

In this activity, you will learn how n8n works by importing an existing workflow and understanding what each part of the workflow does.

Step 1: Open n8n

Open n8n using the link given below:

👉 [n8n.io - AI workflow automation tool]

Step 2: Import the Workflow

Follow these steps inside n8n:

Click on the three dots (⋮) in the top-right corner.

Click Import.

Select Import from JSON.

Step 3: Get the Workflow JSON File

The workflow you need is available in a separate document.

👉 [https://docs.google.com/document/d/1dQKlz1I96ROY4UJs6r9yxU5P3sKOdqkm/edit?usp=sharing&ouid=102152989217281512477&rtpof=true&sd=true]

From that document:

Copy the entire JSON code

Paste it into n8n

Click Import

Step 4: Understand the Workflow

Once the workflow is imported, you will see multiple nodes connected together.

Each node represents one action or step in the automation.

Below is a simple explanation of what each node does.

Node-by-Node Explanation

1. Schedule Trigger

This node starts the workflow automatically at regular intervals.

In this workflow, it runs once every 7 minutes, so the system keeps generating and uploading videos without any manual action.

It is the starting point of the automation.

2. AI Agent

This node generates a new creative video idea every time the workflow runs.

It is instructed to:

Generate a viral YouTube Shorts idea

Create a curiosity-driven title

Write a ready-to-use Veo 3.1 video prompt

Output only a clean JSON object with:

title

prompt

This is where the entire creative concept of the video is created.

3. Google Gemini Chat Model

This node provides the AI intelligence for the AI Agent.

It uses Google Gemini to:

Understand the system instructions

Generate structured JSON output

Follow strict formatting rules

Without this node, the AI Agent would not be able to generate responses.

4. Code in JavaScript

This node cleans and prepares the AI output so it can be used by other nodes.

What it does:

Reads the raw AI response

Parses the JSON properly

Extracts only:

title

prompt

Removes any formatting issues

This ensures the workflow does not break due to invalid JSON formatting.

5. Video Call

This node sends the generated prompt to Google’s Veo 3.1 video generation API.

It tells the API:

What the video prompt is

That the video should be vertical (9:16 format)

This step starts the video creation process.

Veo responds with a long-running operation ID because video generation takes time.

6. Video Generation

This node checks the status of the video generation request.

Since video creation is not instant, this node:

Uses the operation ID

Checks whether the video is ready

Returns:

done = true or false

video download URL (if completed)

This is the polling step.

7. If

This node makes a decision based on the video status.

It checks:

Whether the video URL exists

Whether generation is marked as complete

If the video is ready → continue to download


 If not ready → go to the Wait node

This prevents errors and incomplete downloads.

8. Wait

This node pauses the workflow for 1 minute before checking again.

It helps:

Avoid excessive API calls

Give Veo enough time to finish generating the video

It creates a loop:


 Check → Not Ready → Wait → Check Again

9. Downloading the Video

Once the video is ready, this node:

Downloads the generated MP4 file

Stores it temporarily inside n8n as binary data

Now the workflow has the actual video file.

10. Upload a Video (YouTube)

This node uploads the downloaded video directly to YouTube.

It:

Takes the binary video file

Uses the AI-generated title

Publishes it automatically

This is the final output step.

Summary of the Workflow

The workflow runs automatically every 7 minutes

AI generates a new short-form video idea

Veo 3.1 creates the video

The system waits until the video is ready

The video is downloaded

The final video is uploaded to YouTube automatically

Once set up, the entire process runs without manual effort.