Understanding Filter Categories in Synthesis

The filter category plays a significant role in synthesis, reflecting how hardware synths traditionally utilized filters to adjust and manipulate sound tones. Below, we explore various filter options for sound design and manipulation.

Auto Filter

• Functionality: Provides the sound of filtering and movement.
• Features:
  • Incorporates an LFO (Low-Frequency Oscillator).
  • Suitable for bass sounds.
• Example: Try using an always rising filter in a bass sound.
• Additional Elements:
  • Includes a distortion section.
  • Modulation and envelope control with the LFO.

Evoc20 Filter Bank

• Source: Derived from the Evoc20 vocoder synth found in Logic.
• Characteristics:
  • Produces unique, often alien-sounding effects by manipulating formants.
• Controls:
  • LFO settings.
  • Resonance adjustment.
  • Formant changes.
  • Rate adjustments of the LFO.
• Further Options:
  • Basic filtering on one side.
  • Overdrive for additional distortion.

Evoc20 Track Oscillator

• Overview: Represents the oscillator section of the Evoc20 poly synth.
• Functionality:
  • Allows for resynthesis and vocoder sidechain input.
  • Functions similarly to a vocoder sound but without necessary MIDI input.
• Examples:
  • Basic channel resynthesis maintains a specific note.

Fuzzwire Filter

• Inspiration: Based on the vintage clav.
• Features:
  • Functions as an auto wah, automatically opening and closing the wah sound.
• Sound Example: The characteristic "wah, wah, wah" effect.
• Additional Features:
  • Fuzz distortion, providing hard distortion with additional higher frequencies.
  • Compression levels are adjustable.
• Application: Great for bass sounds, particularly with the bass automatic setting.

Spectral Gate

• Description: A special filter designed for advanced sound design.
• Settings:
  • "Dark super energy" is a recommended preset.
• Sound Characteristics: Produces a distinct digital, spectral sound.
• Adjustable Parameters:
  • Low-level energy.
  • High-level energy.
  • Center frequency manipulation.
  • Bandwidth adjustments for more or less frequency filtering.

Experiment with these various filter options to explore their unique qualities and enhance your music production skills!