AI audio generator for creating dialogue, music, ambience and sound effects from scene prompts
AI tool to remove hardcoded subtitles, captions, timestamps, logos and watermarks from video
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
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.
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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
Auto mode for conventional bottom captions detection
Box select for fine-grained text region selection
Temporal inpainting for background reconstruction
Support for MP4 and MOV formats up to 2GB
Output up to 1080P resolution
30-day file retention after upload
Support for Chinese and English text detection
Per-second billing instead of minute-rounded
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
Pay by actual video seconds rather than rounded minutes
Preserves full frame composition without cropping or blur
Automatic credit refund for failed processing tasks
Choice between fast Auto mode or detailed Box select reconstruction
SeedAudio
RTFV