What are the fundamentals of mixing music?
Gain Staging: Setting Levels Correctly From the Start
EQ Fundamentals: Cutting vs. Boosting and the Priority of Subtractive EQ
Compression Basics: Controlling Dynamics Without Killing Your Mix
Buss Architecture: Grouping Drums, Bass, and Instruments for Control
The Reference Track: How to Use Commercial Songs as Your Target
The Mixing Signal Chain: The Order of Processing and Why It Matters
Common Beginner Mixing Mistakes and How to Fix Them
EQ Approaches Compared
| Approach | When to Use | Frequency Range | Typical Amount | Goal |
|---|---|---|---|---|
| Subtractive EQ (cuts) | Remove problem frequencies first | 200-500 Hz (muddiness), 2-5 kHz (harshness) | -2 to -4 dB narrow Q | Clean foundation before adding |
| Additive EQ (boosts) | Add presence/character after cuts | 3-8 kHz (clarity), 10-12 kHz (air) | +1 to +3 dB wide Q | Enhancement on top of clean foundation |
| High-pass filter | Remove unneeded low-end | Below 80-100 Hz on non-bass instruments | -3 to -6 dB per octave | Prevent low-end buildup, mono compatibility |
| Dynamic EQ | Tame resonances only when they occur | Problem frequency identified by sweep | -2 to -4 dB when triggered | Surgical frequency control without static tone changes |
The Mixing Process in 8 Steps
- Gain stage every track: 1 Set each fader so the loudest signal peaks at -12 dB on the master. Never let any channel clip (red) at the fader. Keep channel faders at unity (0 dB) until the master bus exceeds -3 dB peak.
- Apply high-pass filters: 2 Cut below 80 Hz on guitars, synths, and vocals. Cut below 30-40 Hz on everything except kick and 808/bass. This prevents low-end accumulation that muddies your mix.
- Make subtractive EQ moves: 3 Scan each track for problem frequencies — boost with narrow Q, sweep to find harshness or mud, then cut 2-4 dB at that frequency. Do this before any boosting on any channel.
- Add presence boosts: 4 After all subtractive cuts are made, boost 1-3 dB at 3-8 kHz for clarity and definition on vocals, guitars, and snare. Use a wide Q. This is additive EQ — it enhances, not fixes.
- Apply compression: 5 Set ratio 3:1-4:1, attack 10-30ms, release auto or 100-200ms. Aim for 3-6 dB gain reduction on peaks. Apply to vocals, snare, bass, and any track with inconsistent dynamics. Less is more.
- Route to buss groups: 6 Send all drums to a drums buss, all guitars to a guitars buss, bass instruments to a bass buss. Apply group compression (2:1, slow attack, 1-3 dB GR) for glue.
- Set buss levels and process the 2-bus: 7 Lightly compress the master buss (1-2 dB GR, VCA style) for cohesion. Apply a high-pass at 20-30 Hz to prevent sub-bass rumble.
- Compare to a reference track: 8 Load a commercially released song in your genre at unity gain. Use A/B switching to compare spectral balance, stereo width, and low-end fullness. Adjust until your mix matches the reference's tonal balance.
Learning path
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- What is gain staging and why does it matter in mixing?
- Gain staging is setting correct input/output levels at every point in your signal chain so no stage clips and you preserve maximum headroom. Set your interface input gain so the loudest take peaks at -12 to -6 dB. Keep every DAW channel fader at unity (0 dB) until the master bus. Proper gain staging prevents digital clipping and ensures your plugins are processing at optimal levels.
- Should I cut or boost EQ first?
- Always cut before you boost. Subtractive EQ removes problem frequencies that make mixing harder — mud in the 200-400 Hz range, harshness in the 2-5 kHz range. Once you have cleaned up the spectrum, any boosts you add are building on a clean foundation. Boosts without prior cutting lead to accumulated resonance and a muddy, harsh mix.
- How do I know if my mix is ready for mastering?
- A mix is ready for mastering when: (1) The master bus peaks at -3 to -6 dB with no channel faders maxed out. (2) All instruments are audible and the lead vocal sits clearly above the mix. (3) The low-end (kick + bass) translates well when summed to mono. (4) You have compared to at least three reference tracks and your mix matches their spectral balance.
- What is buss processing and why should I group my tracks?
- A buss is a routing channel that multiple tracks send to. Group processing applies the same EQ, compression, or saturation to an entire drum kit or instrument group simultaneously, creating cohesion. Processing drums on a buss lets you glue them together as a single sound rather than eight individual sounds fighting for space.
- How do I use a reference track without mixing into it?
- Load your reference track in your DAW at unity gain (0 dB on the fader). Use A/B toggling to switch between your mix and the reference. Listen for tonal balance, stereo width, and low-end fullness. Set your DAW meter to show LUFS and match the integrated loudness of the reference, then switch off your limiter and compare.