End-to-end AI video, multi-track audio & AI music as an open service
Support full-dimensional AI analysis for single or batch audio files, including metadata, rhythm/style, BPM, chords, vocals, instruments, energy curve, timbre, and production characteristics. Also provides professional stem separation for vocals, drums, bass, piano, accompaniment, and more, with custom accompaniment generation and result export for analysis, reconstruction, asset decomposition, and quality control.
Integrates audio extraction, smart BGM replacement, and fine-grained multi-track timeline editing. Supports vocal separation, vocal-removed video composition, multi-segment audio mixing, fades, and gain control. Built-in F7-style timeline tools enable layered tracks, clip editing, track mute, and custom render duration for professional-grade post-production.
Built on a unified media task pipeline with broad capability coverage: super-resolution enhancement, face/license privacy masking, format conversion, AI denoise, clipping and stitching, watermark add/remove, subtitle burn-in, beauty filters, picture-in-picture, A/V sync, speed ramping, and cover generation. Supports both single-file processing and batch scheduling to reduce manual editing costs.
Provides an independent commercial API system aligned with end-user capabilities, with API Key-based authentication. Supports custom idempotency, async callbacks, quota management, rate limiting, detailed billing reconciliation, robust error handling, and task-state observability. Easy to integrate into third-party platforms, SaaS systems, and smart devices.
Task interfaces support idempotent duplicate-prevention to avoid repeated billing or execution. Async callbacks ensure near real-time task synchronization. Unified response schemas, standardized error codes, and package quota validation improve production reliability. Supports mainstream media formats, large files, and custom output resolution/bitrate/framerate.
Powered by a custom Kaiser-sinc interpolation algorithm tuned across diverse audio samples for high-fidelity band-limited reconstruction with strong stopband suppression. A one-read/one-write pipeline avoids repeated quality loss, improves export efficiency, ensures consistent full-link output quality, and minimizes external dependency-driven degradation.
Short-video creators: remove vocals for backing tracks, extract vocals for subtitles, clean noise for secondary edits, and combine voice effects for viral content at scale.
Film/pro editors: high-precision stem separation for vocals and instruments, suitable for end-to-end post-production and long-form source material.
Live streaming/MCN: extract vocals from replays, remove background music, and quickly repurpose long streams into monetizable derivative content.
Online education: enhance instructor voices, remove background noise, and improve listening clarity for long recorded lessons.
Enterprise office: extract speech from meeting recordings, denoise and archive content, and support SaaS-based collaboration and review.
Music creators/self-media: precise stem separation plus AI music and sound effect workflows for original and adapted productions with high audio fidelity.
| Feature | Description | Category |
|---|---|---|
| Video size settings | Supports up to 8K output with custom resolution, bitrate, aspect ratio, and frame rate. | Core |
| Multi-segment mixed editing | Import multiple videos and photos for mixed editing workflows. | Core |
| Keyframes and curves | Add keyframes and curve animation to position, effects, volume, and other parameters. | Core |
| Basic video editing | Precise trimming, multi-clip stitching, and transitions for lightweight editing. | Core |
| Speed control | Global/segment speed changes with curve control, up to 100x while preserving pitch. | Core |
| Crop and rotate | Aspect crop, angle rotation, and mirroring for platform-specific framing. | Core |
| A/V sync correction | Detect and correct desync or delay with custom offset controls. | Core |
| Flexible effects | Apply filters, subtitles, transitions, and audio effects across timeline dimensions. | Core |
| Node-based effects | Compose multi-layer effects in node-style structures for complex rendering. | Core |
| Video quality enhancement | Deblocking, denoise, super-resolution, and restoration for low-quality footage. | Core |
| Video privacy masking | Face/plate auto-masking, region masking, and blur for privacy compliance. | Core |
| External effect API | Texture/effect integration interfaces for third-party effect pipelines. | Core |
| Batch media processing | Batch edit, transcode, beautify, and denoise media assets efficiently. | Core |
| Custom export | Custom clips, quality presets, and encoder parameters for tailored output. | Core |
| Regional effects | Apply visual effects to custom local regions in the frame. | Filter |
| Image parameter tuning | Fine-grained control of brightness, contrast, saturation, highlights, shadows, etc. | Image |
| Picture in picture | Dual-layer composition with custom sub-video size, position, and animation. | Image |
| Add watermark | Text/image watermark with custom position, opacity, and animation. | Image |
| Remove watermark | Intelligent repair algorithms for logo/text removal and cleaner visuals. | Image |
| One-click mute | Remove all audio while preserving original video visuals. | Image |
| Cover settings | Capture frame or upload custom image as cover with quality optimization. | Image |
| Voice-over | Independent multi-segment voice-over recording and arrangement. | Audio |
| Independent volume control | Separate gain controls for original sound, BGM, and voice-over tracks. | Audio |
| Extract audio from video | One-click audio extraction with multi-track choice and format options. | Audio |
| Replace background music | Swap original BGM while preserving vocals for short-video remixing. | Audio |
| A/V stem separation | Separate vocal and accompaniment tracks for music re-creation. | Audio |
| Music trimming | Trim specific audio segments for soundtrack usage. | Audio |
| AI audio denoise | Remove environmental noise/reverb and improve clarity intelligently. | Audio |
| Multi-track music mixing | Overlay multiple audio tracks with support for mainstream formats. | Audio |
| Fade in/out | Smooth transitions at clip edges for better listening quality. | Audio |
| Voice effects | Built-in pitch/voice transformation presets for creative audio. | Audio |
| Audio equalizer | Independent low/mid/high-band tuning for precise sound shaping. | Audio |
| Music in/out points | Control start/end playback points for each music segment. | Audio |
| Audio parameter adjustment | Gain, loudness normalization, and channel switching controls. | Audio |
| Multi-segment subtitles | Batch subtitle segments with custom display time ranges. | Subtitle |
| Subtitle position | Free subtitle placement on screen. | Subtitle |
| Text size | Continuously adjustable text size for different resolutions. | Subtitle |
| Subtitle rotation | Custom rotation angles for stylized text layouts. | Subtitle |
| Subtitle color | Custom text color and transparency settings. | Subtitle |
| Subtitle font | Import external fonts for richer typography. | Subtitle |
| Subtitle alignment | Left/center/right alignment for multiline subtitles. | Subtitle |
| Text style processing | Bold, italic, shadow, underline, and other base styles. | Subtitle |
| Text spacing | Control letter spacing and line spacing for readability. | Subtitle |
| Subtitle stroke | Custom stroke color, width, and opacity for legibility. | Subtitle |
| Horizontal/vertical text | Switch subtitle orientation for different aesthetics. | Subtitle |
| Subtitle mask | Use subtitle regions as layer masks for creative effects. | Subtitle |
| Preset style pack | Apply combined subtitle effect styles in one click. | Subtitle |
| Per-character animation | Animate individual characters with multiple motion patterns. | Subtitle |
| Background animation | Decorative motion effects for subtitle backgrounds. | Subtitle |
| Border subtitle | Dynamic borders for chat bubble and dialogue scenes. | Subtitle |
| Karaoke subtitle | Adaptive subtitle backgrounds with karaoke-style color changes. | Subtitle |
| Property composition effects | Combine text attributes for custom visual results. | Subtitle |
| Text animation | In/out/combined text animation presets. | Subtitle |
| Text bubbles | Static/dynamic bubble backgrounds for commentary videos. | Subtitle |
End-to-end AI video, multi-track audio & AI music as an open service
Support full-dimensional AI analysis for single or batch audio files, including metadata, rhythm/style, BPM, chords, vocals, instruments, energy curve, timbre, and production characteristics. Also provides professional stem separation for vocals, drums, bass, piano, accompaniment, and more, with custom accompaniment generation and result export for analysis, reconstruction, asset decomposition, and quality control.
Integrates audio extraction, smart BGM replacement, and fine-grained multi-track timeline editing. Supports vocal separation, vocal-removed video composition, multi-segment audio mixing, fades, and gain control. Built-in F7-style timeline tools enable layered tracks, clip editing, track mute, and custom render duration for professional-grade post-production.
Built on a unified media task pipeline with broad capability coverage: super-resolution enhancement, face/license privacy masking, format conversion, AI denoise, clipping and stitching, watermark add/remove, subtitle burn-in, beauty filters, picture-in-picture, A/V sync, speed ramping, and cover generation. Supports both single-file processing and batch scheduling to reduce manual editing costs.
Provides an independent commercial API system aligned with end-user capabilities, with API Key-based authentication. Supports custom idempotency, async callbacks, quota management, rate limiting, detailed billing reconciliation, robust error handling, and task-state observability. Easy to integrate into third-party platforms, SaaS systems, and smart devices.
Task interfaces support idempotent duplicate-prevention to avoid repeated billing or execution. Async callbacks ensure near real-time task synchronization. Unified response schemas, standardized error codes, and package quota validation improve production reliability. Supports mainstream media formats, large files, and custom output resolution/bitrate/framerate.
Powered by a custom Kaiser-sinc interpolation algorithm tuned across diverse audio samples for high-fidelity band-limited reconstruction with strong stopband suppression. A one-read/one-write pipeline avoids repeated quality loss, improves export efficiency, ensures consistent full-link output quality, and minimizes external dependency-driven degradation.
Short-video creators: remove vocals for backing tracks, extract vocals for subtitles, clean noise for secondary edits, and combine voice effects for viral content at scale.
Film/pro editors: high-precision stem separation for vocals and instruments, suitable for end-to-end post-production and long-form source material.
Live streaming/MCN: extract vocals from replays, remove background music, and quickly repurpose long streams into monetizable derivative content.
Online education: enhance instructor voices, remove background noise, and improve listening clarity for long recorded lessons.
Enterprise office: extract speech from meeting recordings, denoise and archive content, and support SaaS-based collaboration and review.
Music creators/self-media: precise stem separation plus AI music and sound effect workflows for original and adapted productions with high audio fidelity.
| Feature | Description | Category |
|---|---|---|
| Video size settings | Supports up to 8K output with custom resolution, bitrate, aspect ratio, and frame rate. | Core |
| Multi-segment mixed editing | Import multiple videos and photos for mixed editing workflows. | Core |
| Keyframes and curves | Add keyframes and curve animation to position, effects, volume, and other parameters. | Core |
| Basic video editing | Precise trimming, multi-clip stitching, and transitions for lightweight editing. | Core |
| Speed control | Global/segment speed changes with curve control, up to 100x while preserving pitch. | Core |
| Crop and rotate | Aspect crop, angle rotation, and mirroring for platform-specific framing. | Core |
| A/V sync correction | Detect and correct desync or delay with custom offset controls. | Core |
| Flexible effects | Apply filters, subtitles, transitions, and audio effects across timeline dimensions. | Core |
| Node-based effects | Compose multi-layer effects in node-style structures for complex rendering. | Core |
| Video quality enhancement | Deblocking, denoise, super-resolution, and restoration for low-quality footage. | Core |
| Video privacy masking | Face/plate auto-masking, region masking, and blur for privacy compliance. | Core |
| External effect API | Texture/effect integration interfaces for third-party effect pipelines. | Core |
| Batch media processing | Batch edit, transcode, beautify, and denoise media assets efficiently. | Core |
| Custom export | Custom clips, quality presets, and encoder parameters for tailored output. | Core |
| Regional effects | Apply visual effects to custom local regions in the frame. | Filter |
| Image parameter tuning | Fine-grained control of brightness, contrast, saturation, highlights, shadows, etc. | Image |
| Picture in picture | Dual-layer composition with custom sub-video size, position, and animation. | Image |
| Add watermark | Text/image watermark with custom position, opacity, and animation. | Image |
| Remove watermark | Intelligent repair algorithms for logo/text removal and cleaner visuals. | Image |
| One-click mute | Remove all audio while preserving original video visuals. | Image |
| Cover settings | Capture frame or upload custom image as cover with quality optimization. | Image |
| Voice-over | Independent multi-segment voice-over recording and arrangement. | Audio |
| Independent volume control | Separate gain controls for original sound, BGM, and voice-over tracks. | Audio |
| Extract audio from video | One-click audio extraction with multi-track choice and format options. | Audio |
| Replace background music | Swap original BGM while preserving vocals for short-video remixing. | Audio |
| A/V stem separation | Separate vocal and accompaniment tracks for music re-creation. | Audio |
| Music trimming | Trim specific audio segments for soundtrack usage. | Audio |
| AI audio denoise | Remove environmental noise/reverb and improve clarity intelligently. | Audio |
| Multi-track music mixing | Overlay multiple audio tracks with support for mainstream formats. | Audio |
| Fade in/out | Smooth transitions at clip edges for better listening quality. | Audio |
| Voice effects | Built-in pitch/voice transformation presets for creative audio. | Audio |
| Audio equalizer | Independent low/mid/high-band tuning for precise sound shaping. | Audio |
| Music in/out points | Control start/end playback points for each music segment. | Audio |
| Audio parameter adjustment | Gain, loudness normalization, and channel switching controls. | Audio |
| Multi-segment subtitles | Batch subtitle segments with custom display time ranges. | Subtitle |
| Subtitle position | Free subtitle placement on screen. | Subtitle |
| Text size | Continuously adjustable text size for different resolutions. | Subtitle |
| Subtitle rotation | Custom rotation angles for stylized text layouts. | Subtitle |
| Subtitle color | Custom text color and transparency settings. | Subtitle |
| Subtitle font | Import external fonts for richer typography. | Subtitle |
| Subtitle alignment | Left/center/right alignment for multiline subtitles. | Subtitle |
| Text style processing | Bold, italic, shadow, underline, and other base styles. | Subtitle |
| Text spacing | Control letter spacing and line spacing for readability. | Subtitle |
| Subtitle stroke | Custom stroke color, width, and opacity for legibility. | Subtitle |
| Horizontal/vertical text | Switch subtitle orientation for different aesthetics. | Subtitle |
| Subtitle mask | Use subtitle regions as layer masks for creative effects. | Subtitle |
| Preset style pack | Apply combined subtitle effect styles in one click. | Subtitle |
| Per-character animation | Animate individual characters with multiple motion patterns. | Subtitle |
| Background animation | Decorative motion effects for subtitle backgrounds. | Subtitle |
| Border subtitle | Dynamic borders for chat bubble and dialogue scenes. | Subtitle |
| Karaoke subtitle | Adaptive subtitle backgrounds with karaoke-style color changes. | Subtitle |
| Property composition effects | Combine text attributes for custom visual results. | Subtitle |
| Text animation | In/out/combined text animation presets. | Subtitle |
| Text bubbles | Static/dynamic bubble backgrounds for commentary videos. | Subtitle |
