Kick Lab 07 · 12 min

Phase Lab

Combine two related kick layers, move their phase and timing, and watch their sum grow or collapse.

Controlled experiment

Change one cause. Hear the result.

Before moving a control, predict what will change. Use the play controls to compare at a comfortable level.

Audio starts only when you press a play button.

Starting phase of the second low-frequency layer.
0 ms
Moves the second layer earlier or later.
75%
Level of the second layer.
Flips every sample of layer B.
What changed

Move one control and listen for the relationship.

Layer relationshipUpdates with the controls
Layer relationship is ready. Move a control to inspect the change.
Resulting sumUpdates with the controls
Resulting sum is ready. Move a control to inspect the change.

Attention guide

Listen for these three things.

  • 1Low-frequency weight in the sum
  • 2A hollow or doubled onset
  • 3Whether alignment helps one region while hurting another

Guided practice

Three experiments worth doing.

Do them in order. Reveal “What to notice” only after you have described the result in your own words.

  1. 01

    Find the null

    Set equal levels and move phase toward 180°.

    What to notice

    Related low-frequency components can cancel strongly, though a real multi-frequency kick rarely disappears completely.

  2. 02

    Timing is phase by frequency

    Return phase to 0° and move Offset by a few milliseconds.

    What to notice

    One time offset creates different phase shifts at different frequencies.

  3. 03

    Polarity is not magic

    Toggle Polarity at several offsets.

    What to notice

    A polarity flip may improve or worsen the sum; it is a test, not an automatic fix.

Check your model

Why can a small time offset affect low-frequency weight?

Choose the answer that explains the cause, not merely the symptom.

Close the loop

Can you explain the result without the controls?

If you can name the cause, the audible change and the musical tradeoff, the concept is ready to transfer into your own session.