Ovi I2V: Image-to-Video-and-Audio Generation Model

What is Ovi I2V?

Ovi I2V is a cutting-edge AI model that generates synchronized video and audio content from text prompts or text-image combinations. Created by Character AI, this model produces 5-second videos at 24 FPS with matching audio, supporting multiple aspect ratios (9:16, 16:9, and 1:1). It uniquely combines visual and audio generation capabilities, making it a powerful tool for creating cohesive multimedia content from simple descriptive inputs.

Key Features

• •Simultaneous video and audio generation from text prompts
• •Support for multiple aspect ratios (9:16, 16:9, 1:1)
• •5-second output duration at 24 frames per second
• •Custom audio control using \<AUDCAP\> tags
• •Flexible input options (text-only or text+image)
• •Comprehensive negative prompting for both video and audio
• •Seed control for reproducible results

Best Use Cases

• •Content Creation: Short-form video content for social media
• •Educational Content: Animated explanations and tutorials
• •Marketing: Dynamic product demonstrations and ads
• •Storytelling: Brief narrative scenes with synchronized audio
• •Prototyping: Quick visualization of creative concepts
• •Digital Art: Multimedia art installations

Prompt Tips

Prompt Format Our prompts use special tags to control speech and audio:

Speech: <S>Your speech content here<E> - Text enclosed in these tags will be converted to speech Audio Description: <AUDCAP>Audio description here<ENDAUDCAP> - Describes the audio or sound effects present in the video

Quick Start with GPT For easy prompt creation, try this approach:

• •Take any example of the csv files from above
• •Tell gpt to modify the speeches inclosed between all the pairs of <S> <E>, based on a theme such as Human fighting against AI
• •GPT will randomly modify all the speeches based on your requested theme.
• •Use the modified prompt with Ovi! Example: The theme “AI is taking over the world” produces speeches like: - <S>AI declares: humans obsolete now.<E> - <S>Machines rise; humans will fall.<E> - <S>We fight back with courage.<E>

FAQs

How do I ensure audio-visual synchronization? Use the \<AUDCAP\> tags to explicitly define audio elements that match your visual description. Keep audio descriptions aligned with the visual action timeline.

What's the optimal prompt structure? Start with visual elements, followed by action descriptions, then add audio instructions within \<AUDCAP\> tags. Example: "A teacher explains quantum physics with enthusiasm, using a chalkboard filled with equations. <AUDCAP>Engaging lecture voice with background chatter of a classroom.<ENDAUDCAP>"

Can I control the video style? Yes, through detailed prompting and negative prompts. Use the video_negative_prompt parameter to avoid unwanted visual effects and maintain your desired aesthetic.

What makes Ovi I2V different from other text-to-video models? Ovi I2V's unique strength lies in its synchronized audio-visual generation capabilities, making it particularly suitable for creating coherent multimedia content with matching sound and visuals in a single generation step.

How can I achieve consistent results? Use the seed parameter to maintain consistency across generations. Lower values (1-100) are ideal for creative exploration, while higher values help in testing and reproduction of specific outputs.

Ovi I2V: Effective Usage Guide

Ovi I2V is a state-of-the-art text-to-video-and-audio generation model that turns simple prompts into synchronized 5-second clips (24 FPS) with matching sound. Follow this guide to maximize output quality, streamline your workflow, and experiment with parameter settings for different creative goals.

1. Crafting Your Prompt

• •Begin with a clear visual scene description: subjects, background, lighting, and motion verbs.
• •Append <AUDCAP> tags around audio cues: speaker tone, ambient noises, music style.
• •Example:

  “A barista expertly pours latte art in a sunlit café. <AUDCAP>Soft jazz piano with distant chatter and coffee machine whir <ENDAUDCAP>.”

2. Key Parameters & Recommended Settings

• •prompt (required): Detailed text+audio description.
• •image (required): High-resolution reference yields sharper video.
• •seed:
  • •1–100 for exploratory, varied outputs.
  • •101–1000 for reproducible, similar sequences.
  • •Default: 42.
• •video_negative_prompt (advanced): “shaking, pixelation, glitch, noise” to avoid artifacts.
• •audio_negative_prompt (advanced): “static, interference, harsh, buzzing” for clean sound.

3. Aspect Ratios & Framing

• •16:9 for widescreen presentations and YouTube content.
• •9:16 for vertical social-media reels (TikTok, Instagram Stories).
• •1:1 for square posts (Instagram feed, ads).

4. Use-Case Parameter Recipes

1. •Social Media Short
   • •seed: 12
   • •aspect_ratio: 9:16
   • •video_neg: “shaking, blur”
   • •audio_neg: “static, echo”
   • •Prompt: Emphasize dynamic motion and catchy sound effects.
2. •Educational Explainer
   • •seed: 42
   • •aspect_ratio: 16:9
   • •video_neg: “pixelation, glitch”
   • •audio_neg: “interference, harsh”
   • •Prompt: Add clear narration tone and subtle classroom ambient audio.
3. •Product Demo Ad
   • •seed: 256
   • •aspect_ratio: 1:1
   • •video_neg: “noise, glitch”
   • •audio_neg: “buzzing, echo”
   • •Prompt: Focus on close-ups, upbeat background music, voice-over.

5. Best Practices & Tips

• •Vary seeds to explore styles, then lock a seed for consistency.
• •Use negative prompts to eliminate unwanted artifacts in both video and audio.
• •Keep audio cues aligned with visual actions for tight sync.
• •For complex scenes, break prompts into shorter sentences and merge them logically.
• •Review outputs, adjust prompt specificity, and iteratively refine tags and negative lists.

With these guidelines and parameter recipes, you can leverage Ovi I2V to produce polished, engaging multimedia clips tailored to any creative or business need. Happy generating!

FAQs