Reference
Parameters Reference
Complete guide to all settings
This page documents all parameters available in Audio Video Generator. Understanding these settings helps you get the best results.
Aspect Ratio
RequiredThe shape of your video. Choose based on your target platform.
Options
16:9Landscape1280×720YouTube, websites, presentations, TV
1:1Square720×720Instagram posts, profile videos, thumbnails
9:16Portrait720×1280TikTok, Instagram Reels, Stories, mobile
Tips
- • Choose aspect ratio before generating - cannot be changed after
- • Uploaded images will be cropped to match the selected ratio
- • 16:9 is most versatile for general use
Duration
RequiredHow long your video will be.
Options
5 secondsQuick clips, social media, testing ideas
10 secondsStorytelling, detailed scenes, more action
Tips
- • 5-second videos generate faster - great for iteration
- • 10-second videos allow more complex motion
- • Both include full audio with music and effects
Text Prompt
RequiredDescribe what you want to see in the video.
Prompt Structure
Subject
Who or what is in the scene
"A young woman"Action
What is happening
"walking along a beach"Setting
Environment and location
"at sunset"Style
Visual style and mood
"cinematic, warm colors"Tips
- • Be specific - 'golden retriever' works better than 'dog'
- • Include lighting descriptions for better mood
- • Mention camera movement if desired (zoom, pan, etc.)
- • Add mood words (peaceful, dramatic, energetic)
- • Keep prompts under 200 words for best results
Negative Prompt
OptionalSpecify what you DON'T want in the video.
Examples
blurry, low quality, distortedtext, watermark, logoextra limbs, deformed facesTips
- • Use for quality control - exclude artifacts
- • Remove unwanted styles or elements
- • Don't overload - stick to key exclusions
Start Image
OptionalUpload an image to use as the first frame.
Formats: PNG, JPG, JPEG, WebP
Max Size: 25 MB
Best Practice: 1024×1024 or higher resolution
Tips
- • Image will be cropped to match aspect ratio
- • High-quality images produce better results
- • Simple compositions animate more reliably
- • Used by: Image to Video, Audio Video Fast/Ultra
Reference Image (Ultra only)
OptionalGuides the visual style without being the first frame.
Formats: PNG, JPG, JPEG, WebP
Max Size: 25 MB
Purpose: Style and mood guidance
Tips
- • Different from start image - influences style, not content
- • Great for maintaining brand consistency
- • Use for color palette and lighting references
- • Only available in Audio Video Ultra
Parameter Support by Model
| Parameter | Text to Video | Image to Video | Audio Video Fast | Audio Video Ultra |
|---|---|---|---|---|
| Aspect Ratio | ✓ | ✓ | ✓ | ✓ |
| Duration | ✓ | ✓ | ✓ | ✓ |
| Text Prompt | ✓ | ✓ | ✓ | ✓ |
| Negative Prompt | ✓ | ✓ | ✓ | ✓ |
| Start Image | — | ✓ (required) | ✓ | ✓ |
| Reference Image | — | — | — | ✓ |