EZmix 3 vs StemMaster
EZmix 3
toontrack.com
StemMaster
nomzstudios.comSide by side
| Figure | EZmix 3 | StemMaster |
|---|---|---|
| Price from | — | $4.92/mo |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Plans published | 2 | 3 |
| Spec score · AI Audio Mixing Software | 8.3 (#2) | 7.3 (#24) |
| Headquarters | Sweden | Dubai, UAE |
| Privacy | Toontrack Music AB says its privacy policy covers information collected through its website, support forum and web shop; for US and Canadian checkout, FastSpring handles payment data and Toontrack says it does not collect or store payment details. | 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. |
| Purpose | EZmix 3 creates mixes and masters with ready-made signal chains, guitar and bass tones, AI-powered assistance and intuitive workflows. | StemMaster analyzes audio stems, mixes and masters them, and explains its processing decisions. |
| Support | Toontrack directs customers to its FAQ and says the contact support button is at the bottom of each FAQ answer. | The maker says it answers questions publicly in its Gearspace thread. |
| System requirements | EZmix 3 requires Windows 10 or newer or macOS 10.13 or higher, an Intel or Apple silicon processor, 4 GB RAM and approximately 2 GB free disk space; 8 GB RAM or more is recommended. | 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. |
Plans
StemMaster
- Monthly subscription$9.99 a month
- Annual subscription$59 a year
- Lifetime license$99, paid once
In their own words
EZmix 3
EZmix 3 is music production software for creating mixes and masters with ready-made signal chains, guitar and bass processing, and AI assistance. Its core library includes new presets and content from EZmix and EZmix 2. Presets can include up to ten adjustable macros, plus controls and meters such as dry/wet, gain, gain reduction, and LUFS. Users can stack presets in their chosen order and fine-tune the resulting chains. AI-assisted presets analyze incoming audio to tailor processing, and mastering tools analyze a mix to adapt the mastering treatment. Guitar and bass features include analysis of unprocessed DI signals and AI amp captures based on actual signal chains. EZmix 3 runs on Windows 10 or newer and macOS 10.13 or higher, with a standalone app; plugin use requires a 64-bit host supporting VST 3, AU, or AAX. The listed regular product costs EUR 149.00 once. An upgrade costs EUR 69.00 once for eligible owners of a previous EZmix version, with eligibility checked after login.
StemMaster
StemMaster is a standalone app that analyzes audio stems, mixes and masters them, and explains its processing decisions. It balances, pans, equalizes, and compresses stems according to measured roles, and can detect song sections to automate gain, pan, filters, reverb, and stereo width. Tools include vocal riding and spectral unmasking. Users can supply a commercial reference track to guide tonal balance, width, and dynamics while retaining a selected loudness target. Listed targets are Streaming −14, Club −9, and broadcast EBU R 128 −23 LUFS. The app loads WAV, AIFF, FLAC, MP3, and OGG stems and supports exports including 24-bit audio and 32-bit float WAV. Its built-in analysis engine works offline. An optional AI engine uses the user's own API key and sends measurement summaries, not audio, to the chosen provider. The free demo is the full app, but exporting requires a license and unlicensed mastered playback has a periodic audio tag. 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. Plans include $9.99 a month, $59 a year, or a 99.00 USD one-time lifetime license.