Master vocal, drum, bass and instrument stems independently for surgical dynamic balance and zero stereo compromise.
Stereo mastering treats a completed stereo mixdown as a single immovable audio file. If the lead vocal is 1.5 dB too quiet or the sub-bass is clashing with the kick drum, a traditional stereo mastering engineer must compromise between fixing the flawed element and altering every other instrument in the song. Online stem mastering bridges the gap between mixing and mastering by processing isolated sub-mix groups (stems)—typically Vocals, Drums, Bass and Instruments—separately before summing them to the final stereo bus. Mixify offers state-of-the-art stem audio mastering, applying surgical dynamic control, stereo imaging and harmonic enhancement to each individual group for pristine clarity.
Multi-bus neural processing. Instant 60s preview. Lossless 24-bit WAV export.
Stem mastering provides surgical control over individual musical layers without causing destructive side-effects across the rest of your mix:
In stereo mastering, boosting mid-range frequencies to bring out a quiet vocal also makes snare drums, guitars and keyboard chords louder. With stem mastering, the vocal bus is dynamically polished, saturated and leveled independently.
Low-end conflicts between kick drums and basslines are the most frequent cause of muddy mixes. Processing bass and drum stems separately allows for surgical sidechain carving and mono alignment without affecting upper-frequency instruments.
Keep sub-bass and kick drums anchored firmly in mono while widening ambient synth pads and vocal reverb tails across the stereo sides, eliminating phase cancellation risks.
Follow these simple steps when bouncing stems from your DAW (Ableton, FL Studio, Logic Pro, Pro Tools or Reaper):
Compare the capabilities of single stereo 2-track mastering against multi-track stem mastering:
| Capability | Stereo 2-Track Mastering | Mixify Stem Mastering |
|---|---|---|
| Vocal Level Correction | Affects mid-range guitars, snares and synths | Independent vocal fader with zero bleed |
| Low-End Clashing Resolution | Broad EQ cuts weaken entire bass foundation | Surgical separation between kick and bass stems |
| Stereo Width Customization | Applied globally across all instruments | Sub-bass mono, instruments widened separately |
| Master Bus Limiter Strain | Heavy compression squashes dynamic peaks | Evenly distributed gain reduction across sub-buses |
| Turnaround & Pricing | Traditional studios charge €150+ per stem master | Included in Mixify's unlimited €14/month subscription |
Our multi-bus pipeline treats your stems through four rigorous processing stages:
Stems are verified for absolute timeline synchronization, confirming that summing all channels mathematically reproduces your original mix balance.
Drums receive transient shaping, basslines are mono-consolidated, vocals are de-harshed and instruments are broadened across the stereo soundstage.
Adaptive multiband ducking prevents frequency collisions between bass and kick drums, creating space for vocals without volume automation.
The balanced stems are summed to a high-resolution 32-bit float master bus and finalized with our ITU-R BS.1770-4 True Peak limiter.
Upload your stems now and experience the clarity and power of professional online stem mastering.
No credit card required · 5x 60s Free Previews / Month · Lossless WAV download