AI audio generator for creating dialogue, music, ambience and sound effects from scene prompts
AI video analysis and everyday video tools, in one place
Stage
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Founded
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Based in
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Pricing model
Freemium
Paid
Pricing
Free plan with 10 free credits. Pro: $19.99/month (monthly) or $199.90/year (30,000 credits/year); Max: $49.99/month (monthly) or $499.90/year (90,000 credits/year). Credit packs also available.
AI Rap Video Generator: 20 credits per rap video. Subscriptions renew monthly; prices shown in USD.
Key features
Multi-speaker dialogue generation with emotional tone and timing control
Scene ambience and background music composition
Voice cloning with audio reference guidance
Image and audio reference inputs for contextual generation
Output format customization: WAV, MP3, PCM, OGG Opus
Adjustable sample rate from 8 kHz to 48 kHz
Speed, volume and pitch controls on generated audio
API access for Pro and Max plan holders
Up to 2 minutes maximum audio duration per generation
Preset voices including Vivi 2.0, Sophie 2.0, Monkey King 2.0, Magnus and Celeste
Video to Text: turn speech into readable transcripts
Video to Prompt: describe scenes as AI prompts
AI Rap Video Generator: create lip-synced rap videos from two photos
Video Compressor: reduce video file size
Video Splitter: divide videos into shorter clips
Video to MP3: extract audio as MP3 files
Auto-detect language or choose from multiple languages
Browser-based with no installation required
Pay-per-use credits with transparent pricing
Automatic refunds for failed generations
What makes it different
All-in-one audio generation combining dialogue, music, ambience and effects in a single mixed track
Scene-first workflow directing complete audio narratives rather than separate speech generation
Powered by ByteDance's Seed Audio 1.0 model for professional-quality audio generation
Multimodal input supporting text prompts combined with images or multiple audio references
Voice cloning capability using authorized audio references to guide vocal character and delivery
Show cost before generating anything
Pay only for what you use with automatic refunds on failed runs
Simple browser-based tools with no installs or timeline editing
Files automatically expire after processing
Transparent about AI limitations and asks users to review results
SeedAudio
Video Analyzer