Aspect Ratio, Dimensions & Audio
Aspect ratio options, platform recommendations, reference image framing tips, and audio generation controls for Seedance models in Qolaba's Video Generation workspace.
Aspect ratio defines the shape and framing of your video. Audio generation adds an AI-generated sound layer to your output. Both are configured in the Output Controls before generating.
Aspect Ratio & Dimensions
Aspect ratio has no effect on credit cost but significantly impacts how the video performs across platforms and how well it uses any reference images uploaded as inputs.
Available Aspect Ratios
16:9
Landscape
YouTube, presentations, desktop, TV, widescreen
9:16
Portrait
Instagram Reels, TikTok, YouTube Shorts, Stories
1:1
Square
Instagram feed, LinkedIn, social media posts
4:3
Landscape
Classic film look, older display formats
3:4
Portrait
Pinterest, some mobile formats
21:9
Ultrawide
Cinematic widescreen, film production
Platform Quick Reference
YouTube
16:9
Instagram Feed
1:1
Instagram Reels
9:16
TikTok
9:16
YouTube Shorts
9:16
3:4
16:9 or 1:1
Cinema / Film
21:9
Matching Aspect Ratio to Reference Images
When uploading an initial image or last frame image, match the output aspect ratio to the source image's natural dimensions. Mismatched ratios result in either cropped or stretched framing in the generated output.
Before uploading a reference image, check its dimensions and select the closest matching aspect ratio. A portrait photo (3:4) used with a 16:9 output will be significantly cropped and may exclude key subject elements. See Reference Media Uploads → for more guidance.
Audio Generation Controls
Audio generation is available exclusively on Seedance and Seedance 2.5. All other models generate silent video only.
When enabled, Qolaba generates a contextually matched audio layer alongside the video — ambient sound, environmental audio, or scene-appropriate sound based on the visual content.
Audio On vs. Audio Off
Audio ON (default)
Video with AI-generated audio
Standard
Final outputs for social media, demos, storytelling
Audio OFF
Silent video
Slightly lower
When adding custom audio in post, or audio is not needed
How to Toggle Audio
Select Seedance or Seedance 2.5 as your model
The Audio Generation toggle becomes available in Output Controls
Toggle on to include audio or off to generate silent video
The credit counter updates to reflect the change
The Audio toggle is currently only available with Seedance model.
When to Disable Audio
You plan to add your own music, voiceover, or sound effects in post-production
The video will play in a muted or silent-autoplay context
You want to reduce credit usage slightly during draft generations
The AI-generated audio from a previous run did not match the intended tone
Using Audio with Other Models
If you need audio alongside video from a non-Seedance model, generate the video first using your preferred model, then use the Text-to-Speech tool → to create a separate audio layer and combine both in post-production.
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