Audio Envelope Filter

Envelope filter (Auto-Wah) inspired by Mu-Tron III. A resonant filter whose cutoff frequency follows the input signal's amplitude.

An envelope filter detects the amplitude of the incoming audio and uses it to sweep a resonant filter's cutoff frequency. Playing harder pushes the filter higher, creating expressive wah-like effects without a foot pedal. The Mu-Tron III, famously used by Stevie Wonder and Jerry Garcia, is the quintessential example of this effect.

Settings

bypass

Bypasses the module processing when activated (ON).

  • OFF (0): Module processes normally
  • ON (1): Input passes directly to output without processing

in

Audio input flow(s).

out

Audio output flow(s).

sensitivity

How much the input envelope affects the cutoff frequency. Higher values produce more dramatic filter sweeps.

attack

Envelope attack time in ms. Controls how quickly the filter responds to transients.

release

Envelope release time in ms. Controls how quickly the filter returns to the base frequency after the input level drops.

base freq

Base cutoff frequency in Hz. The filter starts from this frequency and sweeps upward according to the envelope.

resonance

Filter resonance in %. Higher values create a more pronounced peak at the cutoff frequency, producing a more vocal, quacky character.

mode

Filter mode selector: low-pass, band-pass, or high-pass. Low-pass gives the classic wah sound; band-pass is more vocal; high-pass produces thinner, more cutting sweeps.

mix

Dry/wet blend. 0 = dry (unprocessed input), 1 = fully filtered.

Common Settings

info

show manual

Opens the web browser to display information or help about the selected object, if it exists.

For more details about information/help creation, see create-help-file.

description

Description of the module for internal help purposes only. The description is not displayed in the interface.

ID's

visible only in god mode, see setup-panel-tab-expert.

unique ID

Current private ID for this control used to identify the object.

preset ID

Current private preset ID for this control used for presets.

recreate ID

If you experience difficulties in Polyphonic mode, try to recreate new id(s) with this button.

repair ID s

Each Patch shared on the local network uses its own ID (identification number). If you experience issues of Patches that don't send information to the good target, this button will rebuild all these id's.

Object Remote Address

absolute

Absolute remote address. see objects-address.

local

Local to the current patch remote address. see objects-address.

user addr

User defined remote address. see objects-address.

See also

version 7.0.250121

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