Nat 5HigherAdvanced Higher
Envelope filter
An envelope filter changes the tone of a sound in response to the strength of the input signal.
Also called: Wah-wah, Auto-wah
Level relevance: introduced at Nat 5; tagged for every later level where the same concept remains useful.
Explanation
Envelope filters often create a wah-like effect that reacts to how loudly or strongly the performer plays. They are common on guitar, bass, and funk-style sounds.
Topics
EffectsFilteringPerformance
Curriculum statusofficial concept
Review statusdraft
Sources
- National 5 Music Technology course specification, May 2023, version 3.0 · accessed 2026-07-08
Used for National 5 technology skills, technology concepts, and music concepts.