Filter Section

The Filter section allows you to adjust the tone color of the sound. It provides 24 different filter shapes, including low-pass, high-pass, band-pass, and band-reject filters. The integrated filter distortion can produce analog tube distortions or hard clipping effects, or reduce the bit depth or sample frequency.

You can use the filter envelope to modulate a large number of modulation destinations that are accessible in the modulation matrix.

Envelope Amount

Controls the cutoff modulation from the filter envelope.

Cutoff Key Follow

Adjusts the cutoff modulation using the note number. Increase this parameter to raise the cutoff with higher notes. At 100%, the cutoff follows the played pitch exactly.

Center Key

Specifies the MIDI note that is used as the central position for the Key Follow function.

Filter Shape

  • LP24, 18, 12, and 6 are low-pass filters with 24, 18, 12, and 6 dB/oct. Frequencies above the cutoff are attenuated.

  • BP12 and BP24 are band-pass filters with 12 and 24 dB/oct. Frequencies below and above the cutoff are attenuated.

  • HP6 + LP18 and HP6 + LP12 are a combination of a high-pass filter with 6 dB/oct and a low-pass filter with 18 and 12 dB/oct, respectively (asymmetric band-pass filter). Frequencies below and above the cutoff are attenuated. Attenuation is more pronounced for the frequencies above the cutoff.

  • HP12 + LP6 and HP18 + LP6 are a combination of a high-pass filter with 12 and 18 dB/oct and a low-pass filter with 6 dB/oct (asymmetric band-pass filter). Frequencies below and above the cutoff are attenuated. Attenuation is more pronounced for the frequencies below the cutoff.

  • HP24, 18, 12, and 6 are high-pass filters with 24, 18, 12, and 6 dB/oct. Frequencies below the cutoff are attenuated.

  • BR12 and BR24 are band-reject filters with 12 and 24 dB/oct. Frequencies around the cutoff are attenuated.

  • BR12 + LP6 and BR12 + LP12 are a combination of a band-reject filter with 12 dB/oct and a low-pass filter with 6 and 12 dB/oct, respectively. Frequencies around and above the cutoff are attenuated.

  • BP12 + BR12 is a band-pass filter with 12 dB/oct plus a band-reject filter with 12 dB/oct. Frequencies below, above, and around the cutoff are attenuated.

  • HP6 + BR12 and HP12 + BR12 are a combination of a high-pass filter with 6 and 12 dB/oct and a band-reject filter with 12 dB/oct. Frequencies below and around the cutoff are attenuated.

  • AP is an all-pass filter with 18 dB/oct. Frequencies around the cutoff are attenuated.

  • AP + LP6 is an all-pass filter with 18 dB/oct plus a low-pass filter with 6 dB/oct. Frequencies around and above the cutoff are attenuated.

  • HP6 + AP is a high-pass filter with 6 dB/oct plus an all-pass filter with 18 dB/oct. Frequencies around and below the cutoff are attenuated.

Cutoff

Controls the cutoff frequency of the filter.

Distortion Type

  • Off deactivates the filter section.

  • Tube Drive adds warm, tube-like distortion. You can set the amount of tube drive with the Distortion parameter.

  • Hard Clip adds bright, transistor-like distortion. You can set the amount of hard clipping with the Distortion parameter.

  • Bit Red (Bit Reduction) adds digital distortion by means of quantization noise. You can adjust the bit reduction with the Distortion parameter.

  • Rate Red adds digital distortion by means of aliasing. You can adjust the rate reduction with the Distortion parameter.

  • Rate Red KF adds digital distortion by means of aliasing. In addition, Key Follow is used. The rate reduction follows the keyboard, so the higher you play, the higher the sample rate.

Resonance

Emphasizes the frequencies around the cutoff. At higher settings, the filter self-oscillates, which results in a ringing tone.

Distortion Level

Adds distortion to the signal. The effect depends on the selected type. At higher settings, it creates a very intense distortion effect.

Envelope Faders and Velocity Control

With the envelope faders, you can specify the attack, decay, sustain, and release times of the filter envelope.

The Velocity control determines how much the envelope intensity depends on velocity. If the control is set to 0, the envelope is fully applied. Higher values reduce the intensity for lower velocities.