demobook

HeyGen: Configure video duration and aspect ratio

Demo summary

The user demonstrates navigating to the options icon and clock icon within the HeyGen interface to set specific video lengths and choose between portrait or landscape aspect ratios.

Step-by-step

  1. Navigate to the options icon in the interface
  2. Click on the clock icon
  3. Select a duration setting or choose Auto
  4. Select the aspect ratio for your target platform

Options

  • Set duration to 30 seconds, 1 minute, 2 minutes, or 3 minutes
  • Let the agent decide duration automatically based on the prompt
  • Choose Portrait for vertical platforms like TikTok or Instagram
  • Choose Landscape for traditional formats like YouTube
  • Leave aspect ratio on Auto

Watch out for

  • The duration setting is not a hard limit; the agent still follows the prompt or script length

Tips

  • Don't start by trying to sound clever; start by being clear
  • Use the duration setting to point the video agent in the right direction before it starts generating

All demos from “How to Write PERFECT Prompts for AI Video

  1. 3:050:29Select avatar and voice in HeyGen Video AgentThe narrator navigates the HeyGen sidebar to Video Agent and demonstrates how to select a specific avatar or set it to auto, including a tip for voice-over-only videos.HeyGenAI Avatar Video Generator
  2. 4:340:34Configure video duration and aspect ratioCurrentThe user demonstrates navigating to the options icon and clock icon within the HeyGen interface to set specific video lengths and choose between portrait or landscape aspect ratios.HeyGenAI Avatar Video Generator
  3. 10:301:10Generate a scene-by-scene video from a scriptThe narrator shows a completed setup in Video Agent with a multi-scene script using 'VO' and 'visuals' tags, then clicks generate to render the final AI video.HeyGenScript To Video AI Generator
  4. 11:520:20Fine-tune videos in HeyGen AI Studio modeThe demonstration shows how to transition from the Video Agent chat interface into AI Studio mode to manually edit scenes, visuals, and timing.HeyGenAI Video Editor
  5. Watch “How to Write PERFECT Prompts for AI Video” →

AI Avatar Video Generator

  1. 1:070:54Generate an AI video with HeyGen's AI AgentThe creator demonstrates using the HeyGen workspace to input a topic, select a custom AI clone avatar, and automatically generate a complete video with script and visuals.Simon Crowe
  2. 4:201:24Editing scripts and captions in HeyGen AI StudioThe creator walks through the HeyGen AI Studio editor, showing how to manually edit the generated script, adjust delivery style, and customize caption fonts and colors.Simon Crowe
  3. 6:260:49Adjusting avatar movement with HeyGen Motion EngineThe user demonstrates the Motion Engine settings in HeyGen, selecting different movement styles like 'excited' or 'welcoming' to change the avatar's physical energy.Simon Crowe
  4. 8:332:35Cloning a real person as an AI avatarThe tutorial demonstrates the step-by-step process of creating a 'digital twin' by recording a webcam video and reading a safety script to train a custom HeyGen avatar.Simon Crowe
  5. 15:231:50Creating a virtual character in HeyGenThe video shows how to design a stylized virtual character (Matteo) using AI prompts, selecting a Pixar-style aesthetic and assigning a specific voice from the library.Simon Crowe
  6. 2:570:52Create a custom virtual character in HeyGenThe user demonstrates how to upload a photo to HeyGen to create a custom virtual avatar, including setting metadata like name, age, and gender.Esmile Ai
  7. 4:001:18Access hidden Scene Builder and upload long audioThe creator shows how to bypass standard credit prompts by selecting 'Build scene by scene' from a hidden menu and uploading a 10-minute audio file to HeyGen.Esmile Ai
  8. 2:391:12Create a virtual character with HeyGen AIThe user demonstrates designing a virtual character named Jack from scratch by selecting attributes like age, ethnicity, and Pixar style, then choosing a voice from the library.Daniel Davidson
  9. 1:181:04Create an AI Avatar with HeyGenThe creator demonstrates how to upload personal video footage to HeyGen to create a realistic digital clone or AI avatar.Ayushman Pandita
  10. 6:250:38Reviewing the AI-generated video outputThe final output generated by HeyGen is played, showing the AI avatar speaking the script with automated B-roll and captions.Ayushman Pandita
  11. 3:010:46Check credit costs and preview audio in HeyGen AI StudioThe video demonstrates the HeyGen AI Studio interface, showing where to find the credit cost for a scene and how to use the free play button to preview audio pacing before generating.HeyGen
  12. 3:470:24Review video settings in HeyGen Video AgentThe presenter shows the Video Agent interface, demonstrating how to use the chat option to review avatar and style selections and see the credit requirement before committing to a generation.HeyGen