Lesson 17 +10 XP

Low-Pass Filter

Low-Pass Filter

A low-pass filter (lpf) lets low frequencies pass through and cuts out the high ones. Think of a muffled sound - like music from the next room.

Cut off the highs

Try different numbers: higher values like 5000 sound brighter, lower like 200 sound darker.

Filter the whole drum beat

Automate the filter

Make the filter frequency a pattern to sweep it over time:

Filter types

  • lpf - low-pass (muffles the highs).
  • hpf - high-pass (cuts the lows, thin sound).
  • bpf - band-pass (only a band of frequencies).

High-pass to get rid of the boom

A high-pass filter is great when you have a bass drum mixed in but want to remove the "boom":

TL;DR

  • .lpf(n) cuts high frequencies (darker).
  • .hpf(n) cuts low frequencies (thinner).
  • .bpf(n) keeps only a band of frequencies.
  • Lower lpf value = more muffled; higher = brighter.