StemMaster

StemMaster is ranked #7 of 34 in AI audio mixing software on The Geeks Club. It runs on macOS, Windows. Paid plans start at $4.92/mo.

StemMaster plans and pricing

All plans

Monthly subscription $9.99/mo monthly; cancel any time Up to 3 machines · Windows and macOS · License lasts through paid period nomzstudios.com · 3 Oct 2026

Annual subscription $59/yr once a year Up to 3 machines · Windows and macOS · License lasts through paid period nomzstudios.com · 3 Oct 2026

Lifetime license $99 once one-time Up to 3 machines · Windows and macOS · Free 1.x updates nomzstudios.com · 3 Oct 2026

Compared on AI audio mixing software

Free plan: No
DAW plugin: No
Stem separation: No
Automatic EQ: Yes
Automatic dynamics: Yes
Spatial processing: stereo
Plugin formats: standalone

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StemMaster

Purpose: StemMaster analyzes audio stems, mixes and masters them, and explains its processing decisions.
Stem mixing: It balances, pans, EQs and compresses stems according to their measured roles.
Automation: It detects song sections and can automate gain, pan, filters, reverb and stereo width by section.
Vocal and frequency tools: Features include a vocal rider and spectral unmasking that can duck competing frequency ranges.
Reference matching: Users can provide a commercial reference track to guide tonal balance, width and dynamics while retaining the selected loudness target.
Loudness targets: The listed targets are Streaming −14, Club −9 and broadcast EBU R 128 −23 LUFS.
Audio formats: It loads WAV, AIFF, FLAC, MP3 and OGG stems, and supports multiple export formats including 24-bit audio and 32-bit float WAV.
AI engines: The built-in analysis engine works offline; the optional AI engine uses the user's own API key, with Anthropic, OpenAI, z.ai and compatible providers listed.
DAW workflow: StemMaster is a standalone app rather than a VST plugin, and the FAQ describes exporting stems from DAWs such as Ableton, FL Studio, Logic, Reaper and Cubase.
Privacy: The maker says analysis, mixing and mastering run locally and audio is never uploaded; the optional AI engine sends measurement summaries, not audio, to the selected provider.
Security and telemetry: The privacy policy says the app has no account, usage tracking, crash reporting or analytics SDK, and stores API keys in the operating system credential store.
Free demo: The free demo is the full app, but exporting requires a license and mastered playback includes a periodic audio tag until licensed.
System requirements: It runs on 64-bit Windows 10 version 2004 or newer and Windows 11, or Apple Silicon Macs on macOS 15 or newer; Intel Macs are unsupported.
Support: The maker says it answers questions publicly in its Gearspace thread.
Price from: $4.92/mo

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Where it ranks on The Geeks Club

Best AI Audio Mixing Software in 2026#7 of 34

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Sources

nomzstudios.com· checked 3 Oct 2026
nomzstudios.com/privacy· checked 3 Oct 2026