Once the basics are in place, these advanced techniques separate a good mix from a great one. They address the hardest problems in mixing: frequency masking, stereo width, and dynamic separation.

Unmasking Strategy

Masking happens when two or more instruments occupy the same frequency range, causing one to bury the other. Here’s how to fix it at every level:

Track-to-Track

• Masking EQ (Sonible Smart:EQ)
• Functional Compression for front/back placement
• Transient Shaping to separate attacks

Stem-to-Stem

• Side-chain EQ/Comp
• Parallel Compression for “lift”
• Character: Parallel Particles / Manny Tone Shaper for separation

The Parallel Bandpass Trick

This is one of the most powerful unmasking techniques in mixing. It uses phase cancellation to carve space dynamically:

1. Create a parallel aux with a bandpass filter on the clashing frequency.
2. Send both competing sources to it (e.g., snare + guitars).
3. Flip polarity on the source you want less of in that band.
4. Result: one source gets a ~+6 dB reinforcement, the other gets a notch (cancellation) at that frequency.
5. Add an expander (set aggressively) on the aux so the effect moves dynamically with the music.

Example: Snare vs. guitars → bandpass the fundamental → flip polarity on guitars send → snare pops, guitars carve out space.

Mid/Side Processing

Mid/Side processing lets you treat the center and sides of your mix independently. Use it when instruments are fighting for the same space in the stereo field.

• Find areas that are covering each other and use mid/side EQ to carve.
• Solo the mid channel and mix with an M/S EQ to get both channels full.
• Use mid/side compression to control dynamics differently in the center vs. the sides.

Parallel Bandpass Shaping (Drums)

This technique enhances drum tone and presence by isolating each drum’s fundamental frequency on separate parallel aux tracks:

• Create parallel aux tracks with bandpass filters on each drum’s fundamental.
• Keep snare and each tom on separate auxes (don’t group them).
• Add saturation to each band to enhance tone and presence.
• For shells, bandpass higher ranges to bring out attack/thump.
• For kick, bandpass low frequencies to emphasize weight/punch.