NUO-STEMS 4 is an AI stem-separation tool developed by Ukrainian developer DJ NUO. It is primarily aimed at Traktor Pro 4 users, while also supporting Serato and DAW workflows. It can split regular audio into drums, bass, other, and vocals, and generate native linked STEMS recognized by Traktor, making it useful for DJs who want to isolate vocals, drums, or bass during live sets and track preparation.
Its AI capabilities are based on open-source separation algorithms. The site mentions Spleeter, Demucs, mel_band_roformer, as well as v4βs mel_vocals_bs_others and bs_roformer. The website uses SDR metrics to show quality advantages over Traktor Pro 4, RekordBox, VirtualDJ, and others, though real-world results should still be tested by genre. Feature-wise, it supports batch processing, three modes, WAV stem export, STEMS color customization, and automatic syncing of Traktor metadata such as playlists, hotcues, beatgrids, and colors. Serato integration is available as 4.1 alpha and can generate .serato-stems, but information on stability is limited.
Pricing is fairly straightforward: the one-time purchase version is $33.99 / GBP / EUR, includes lifetime use of v4, and unlocks all features. The Patreon subscription is $5/month and can be canceled at any time. The demo lets you test all features, but only processes the middle 20 seconds of each song, with no limit on the number of tracks. For payments, direct card payment is supported in the US, while international Visa/Mastercard/Diners/Amex payments are processed via PayPal, with guest checkout available. Purchases are generally non-refundable unless support confirms a software fault.
The main advantages are local processing, keeping data on your own computer, and unlimited processing, which is good for privacy and cost control. Its deep Traktor Pro 4 integration makes it suitable for batch-converting large music libraries. It supports Windows, macOS Intel, and Apple Silicon, with GPU acceleration available. Downsides include the demoβs inability to fully verify whole-track results, and processing speed depends on hardware. There is no clear mention of a Chinese interface, Chinese documentation, or Chinese-language support. No open API information is provided, and Serato support is still in alpha.
NUO-STEMS 4 is best suited to heavy Traktor Pro 4 DJs, performing users who need to batch-generate stems, and producers who want to export WAV stems into Ableton Live or Logic Pro. The website does not provide information about access from China. The domain, PayPal, and Patreon may involve some uncertainty in terms of network access and payment experience within mainland China. If access or payment is inconvenient, alternatives such as Traktorβs built-in stems, RekordBox, VirtualDJ, Serato Studio, and Neural Mix Pro may be worth considering.
β This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on nuo-stems.com official site.
nuo-stems.com is an Unknown AI Apps provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Workable. Click "Visit Official Site" to reach nuo-stems.com directly.