Core Features at a Glance
Native Audio
Dialogue, SFX, music generation with perfect A/V sync
Video Lengths
4, 6, or 8 seconds per generation (extendable to 148s)
Scene Control
Timestamp prompting, references, first/last frame
Image-to-Video
Animate static images with audio and motion
Quality Options
720p/1080p at 24 FPS in 16:9 or 9:16
Fast Mode
Generate videos in under 2 minutes
Native Audio Generation (Flagship Feature)
What Veo 3.1 Can Generate
Realistic Dialogue
Lip-synced speech with natural intonation and pacing
Sound Effects
Perfectly timed SFX matching visual actions
Background Music
Ambient soundtracks fitting scene mood
Ambient Noise
Environmental sounds (traffic, nature, crowds)
Multi-Person Conversations
Natural back-and-forth dialogue between characters
Cinematic Audio
Professional-grade soundscapes and mixing
Audio Prompting Best Practices
✓ Be specific: "woman says 'hello there' in a cheerful tone" not "woman talking"
✓ Use quotation marks: Always quote exact dialogue for better lip-sync
✓ Describe SFX timing: "SFX: door slams at 2 seconds, glass breaks at 5 seconds"
✓ Set the ambience: "Ambient: busy city street with car honks and chatter"
Video Length Options & Extension System
Single Generation Lengths
Extension System (Up to 148 Seconds)
Veo 3.1 can extend videos by 7 seconds up to 20 times, creating coherent sequences up to 148 seconds total.
How It Works:
- • Generate initial 8-second video
- • Extend by 7 seconds (maintains continuity)
- • Repeat up to 20 times
- • Final output is single coherent video
Best Uses:
- • Longer narrative sequences
- • Multi-scene storytelling
- • Extended product demos
- • Tutorial video segments
Advanced Scene Control Tools
1. Timestamp Prompting
Control multi-shot sequences with precise timing markers. Perfect for creating complex scenes with multiple camera angles.
[00:00-00:02] Close-up of detective's face, suspicious look
[00:02-00:04] Cut to door opening slowly, creaking sound
[00:04-00:06] Wide shot revealing empty room
[00:06-00:08] Return to detective, says "Where did they go?"
2. Reference Images (Ingredients to Video)
Upload reference images for characters, objects, or styles to maintain consistency across generations.
Character References
Maintain character appearance
Style References
Consistent visual aesthetic
Object References
Specific props or items
3. First and Last Frame Generation
Provide start and end frames to create smooth transitions between specific moments. Perfect for controlled camera movements.
Example: Upload image of character facing camera (first frame) and image of character from behind (last frame). Veo generates smooth 180° rotation between them with audio.
Image-to-Video Capabilities
Animate Any Static Image
What You Can Animate:
- •Product photos into demo videos
- •Static artwork into living scenes
- •Brand assets with motion
- •Historical photos brought to life
Key Features:
- ✓Enhanced A/V quality in 3.1
- ✓Better prompt adherence
- ✓Natural motion generation
- ✓Audio automatically added
Technical Specifications
| Feature | Specification |
|---|---|
| Resolution Options | 720p, 1080p |
| Aspect Ratios | 16:9 (landscape), 9:16 (portrait) |
| Frame Rate | 24 FPS |
| Native Audio | Yes (Dialogue, SFX, Music, Ambience) |
| Prompt Languages | English (primary support) |
| Generation Modes | Fast (<2 min), Quality (2-4 min) |
| Watermarking | SynthID (all outputs) |
| API Support | Gemini API, Vertex AI |
Experience All Veo 3.1 Features
Access native audio, scene control, image-to-video, and all advanced features with affordable pricing.