Splitter: AI stem separation for music and video editors
Splitter, from Splitter.ai, is an AI audio tool designed to extract individual sounds from mixed tracks for editors and musicians. The app processes mixed audio to make specific sounds accessible for editing and remixing across video and music projects. It includes automated processing plus adjustable separation depth and export options, accessible from desktop, web, and mobile interfaces. Targeted at producers, DJs, and video editors, it shortens the path from mixed material to reusable stems in creative workflows.
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What is Splitter used for?
The app runs multiple AI models to unmix tracks, including 2-stem, 4-stem, 5-stem and 6-stem options. The 5-stem model yields separate outputs for vocals, drums, bass, piano and an "other" group. The developer built proprietary models presented as higher-quality than common open-source alternatives, which helps users obtain distinct instrument files for editing, sampling, or remixes without manual multitrack recordings.
What audio and video formats does it handle?
The app accepts common audio and video containers and exports professional stems. Supported inputs include:
- Audio: MP3, WAV, FLAC, AIFF
- Video (direct extraction): MP4, MOV, MKV, WEBM
For delivery it can export lossless stems such as FLAC and WAV and supports batch processing for multiple files. A browser extension enables splitting audio directly from online video sources, speeding capture of web-hosted material.
How good is the export quality and processing performance?
Export quality is consistently high, producing stems with minimal "bleeding" between channels, which aids precise isolation. Cloud-based processing delivers rapid results without heavy local computation, although users note processing times vary during peak hours. The desktop application also supports local processing for users who prefer machine-based work, and the Mac client runs on macOSand later for broad compatibility.
A practical choice for creators who need editable stems
Splitter is a capable option for producers and editors who need reliable stem extraction for creative reuse. Although separation quality depends on the complexity of the original mix, the app gives an opportunity to salvage usable parts from dense recordings. For those focused on remixing, sampling, or cleaning dialog from mixed footage, it serves as a pragmatic tool that can accelerate creative workflows when source material is reasonably clear.
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