(Product Features)

• Audio-driven lip-sync video generator (online)
  Upload video + audio to generate a talking video with lip movements synced to the voice.

• Two main workflows

  • Image + Audio → Talking portrait
  • Video + Audio → Redub existing video

• Long Mode (longer outputs)

  • Supports videos up to 5 minutes.

• Handles side angles & occlusion

  • Maintains lip sync even with side views or partially covered mouths (hair, hands, masks).

• Non-human character support

  • Works with cartoons, animals, and non-human images.

• Basic vs Advanced Mode

  • Basic: clear frontal faces
  • Advanced: better stability for side faces & occlusion

• Prompt-to-Voice

  • Type a prompt to generate speech or upload audio.

• Alignment mechanism

  • Face tracking + phoneme mapping for natural articulation.

• Media specs / limits

  • Images ≤ 10MB
  • Videos ≤ 50MB
  • Audio ≤ 20MB
  • Audio formats: MP3 / WAV / OGG / AAC / M4A

用户画像 (Target Users)

• Short-form video creators
• Marketing & advertising teams
• Localization & global expansion teams
• E-commerce & livestream teams
• Education & training teams
• Film/video post-production teams
• Virtual character / animation / VTuber creators

使用场景 (Use Cases)

• Talking portrait / avatar
• Redub existing videos
• Lip-sync across styles (human, cartoon, animals)
• Fix hard shots (side profile / occlusion)
• Long-form dialogue (up to 5 minutes)
• Storytelling & music dubbing
• Prompt-to-Voice rapid drafts

使用教程 (Tutorial)

1. Prepare Assets

A. Image Requirements

• Formats: JPG / JPEG / PNG
• Size: ≤ 10MB

B. Audio Requirements

• Formats: MP3 / WAV / OGG / AAC / M4A
• Size: ≤ 20MB

C. Video Requirements

• Size: ≤ 50MB

2. Make a Photo Talk (Image Mode)

1. Open lipsync-ai page
2. Choose Image Mode
3. Upload Image
4. Upload Audio
5. Click Generate Video
6. Result appears in Result section

Tip: Use Trial Mode (5s test) first.

3. Redub Existing Video (Video Mode)

1. Choose Video Mode
2. Upload video
3. Upload new audio
4. Click Generate
5. Download from Result

4. Long Mode (Up to 5 Minutes)

1. Open Long Mode
2. Choose Image Mode or Video Mode
3. Upload assets
4. Click Generate Video
5. Download after processing (~30 min possible)

5. Beginner Success Tips

• Use clear frontal faces
• Avoid covering the mouth
• Write detailed prompts for animals/cartoons
• Use Advanced Mode for side angles

竞品对比 (Competitor Comparison)

• Lipsync AI → Lip-sync alignment engine (focus on hard shots & 5-min videos)
• HeyGen → AI video platform & translator
• Rask → Localization & multilingual pipeline
• D-ID → Talking presenter/avatar creator

产品优势 (Advantages)

• Strong performance on side profiles & occlusion
• Long Mode up to 5 minutes
• Image + Audio and Video + Audio workflows
• Supports humans & non-human characters
• Basic vs Advanced mode
• Trial 5-second test
• HD 720p export + 4K upscaling
• Commercial license & no watermark
• Pricing: 20 credits/second

产品功能 (Functions)

• Image + Audio → Talking video
• Video + Audio → Lip-sync redubbing
• Trial test generation (5 sec)
• Long Mode up to 5 minutes
• Prompt-to-Voice generation

网站类型 (Promotion Channels)

1. Tech news / business media
2. Vertical industry media
3. AI/ML professional communities
4. Review & comparison sites
5. Tutorial platforms
6. Developer communities
7. Creator economy websites
8. Company blog / LinkedIn / Medium
9. PR wire services
10. Tool directories

产品效果 (Impact)

• Strong before/after lip-sync improvement
• Saves editing time
• Works on hard shots
• Stable up to 5 minutes
• Better localization realism
• Beginner-friendly setup

使用案例 (Case Studies)

1. Last-minute script changes

• Focus: reduce rework & approval cycles

2. E-commerce campaign updates

• Focus: fast iteration & ROI

3. Localization & multilingual videos

• Focus: native-looking dubbing

4. Course updates

• Focus: fix content without re-recording

5. Creator talking avatars

• Focus: repeatable workflows

6. VTuber / game / anime lip sync

• Focus: character consistency

7. Agency & studio delivery

• Focus: meet deadlines without reshoots

适配范围 (Compatibility Scope)

Asset Compatibility

• Image + Audio
• Video + Audio

Character Compatibility

• Humans
• Cartoons
• Animals

Shot Compatibility

• Side profiles
• Occluded mouths

Duration Compatibility

• Trial Mode (5 sec)
• Long Mode (up to 5 min)