SAMPLED

Mixing and mastering · updated 2026-08-16

HIGH-PASS FILTER

Removes low frequencies below a set point. The fastest way to clear rumble, handling noise and mud out of a crowded mix.

A Solid State Logic Matrix mixing console with channel strips, faders and pan pots — the desk layout behind the gain, EQ and balance terms in this section.
Mixing and mastering — A Solid State Logic Matrix mixing console with channel strips, faders and pan pots — the desk layout behind the gain, EQ and balance terms in this section.

Photo: Solid State Logic (SSL) Matrix Mixing Console at Audio Mix House, Studio C (opens in a new tab) by Audio Mix House (opens in a new tab), via Wikimedia Commons — CC BY 2.0 (opens in a new tab)

Key takeaways

  • Removes low frequencies below a set point.
  • The fastest way to clear rumble, handling noise and mud out of a crowded mix.
  • It clears rumble, handling noise and inaudible energy that would otherwise eat headroom, but it also thins a source if set too high — the low end you cannot hear on small monitors still matters on big systems.
  • High-pass a vocal around 80–100 Hz and hi-hats around 300 Hz, checking each in the full mix rather than in solo.
  • Watch out: high-passing every channel by reflex.

Quick checklist

  • Can you define high-pass filter in one sentence without looking?
  • Can you point at high-pass filter in a real session, mix or contract?
  • Have you tried the practical move above at least once?
  • Would you catch the common mistake before it costs you a take?
  • Have you opened one of the primary sources below rather than a forum thread?

HIGH-PASS FILTER IN DEPTH

A high-pass filter removes low frequencies below its corner. It clears rumble, handling noise and inaudible energy that would otherwise eat headroom, but it also thins a source if set too high — the low end you cannot hear on small monitors still matters on big systems.

How it works in practice

High-pass a vocal around 80–100 Hz and hi-hats around 300 Hz, checking each in the full mix rather than in solo.

The mistake people make

High-passing every channel by reflex. Applied to twenty tracks, the cumulative loss makes a mix sound small.

WHERE HIGH-PASS FILTER SITS

High-pass filter belongs to mixing and mastering in the Sampled music glossary. The processing vocabulary, plus the loudness standards streaming services actually measure you against.

TEST YOURSELF

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3 quick questions on high-pass filter. Answers are marked instantly — nothing is sent anywhere.

  1. 1. Which statement best describes high-pass filter?

  2. 2. What is the mistake people most often make with high-pass filter?

  3. 3. In practice, which of these applies to high-pass filter?

Ready for the full thing? Take the 25-question terminology test and get a certificate with your name and score.

SOURCES AND CITATIONS

Free, primary references for high-pass filter — standards bodies, manufacturers, government offices and university course material. Each one lists the line of this entry it backs up.

  • Stanford CCRMA — digital filters (opens in a new tab)

    University research centre · Stanford CCRMA

    “Removes low frequencies below a set point.”— the claim this source supports

    Why it counts: The CCRMA course material derives this from first principles, so you can check the maths behind the plain-English version above.

  • EBU technical publications (opens in a new tab)

    Broadcast standards body · European Broadcasting Union

    “The fastest way to clear rumble, handling noise and mud out of a crowded mix.”— the claim this source supports

    Why it counts: The EBU tech document sets the delivery targets broadcasters and platforms actually enforce.

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