The amplifier section – Waldorf Pulse 2 User Manual

Page 35

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Sound Parameter

35

Pulse 2 User Manual

change the timbre of the sound over time. Sounds with a
hard attack usually have a envelope amount that makes
the start phase bright and then closes the filter to get a
darker sustain phase.

By the way, the envelope amount also depends on the
played velocity. Use this feature to give a more expres-
sive character to the sound. When you hit the keys
smoothly, only minimal modulation is applied. When
you hit them harder, the modulation amount also gets
stronger

Type

LP24 / LP12 / BP12 / HP12

Selects the filter type:

The LP (Lowpass) cuts frequencies above the cutoff
point. You can choose a slope of 12 or 24 dB/
Octave.

BP (Bandpass) removes frequencies both below
and above the cutoff point. As a result, the sound
character gets thinner. Use these filter types when
programming effect and percussion-like sounds.

HP (Highpass) is useful to thin out a sound’s bass
frequencies. This may also give interesting results
in conjunction with cutoff frequency modulation.

By doing this you can e.g. "fly-in" a sound starting
at its high harmonics and then coming up to its full
frequency range.

Keytrack

-64...+63

Determines how much the cutoff frequency depends on
the MIDI note number. The reference note for Keytrack
is E3, note number 64. For positive settings, the cutoff
frequency rises on notes above the reference note, for
negative settings the cutoff frequency falls by the same
amount, and vice versa. A setting of +32% corresponds
to a 1:1 scale, so e.g. when an octave is played on a
keyboard the cutoff frequency changes by the same
amount. If you want to play the filter in a tempered
scale, e.g. for a solo sound with self-oscillation, set the
value to +32%. On most bass sounds lower settings in
the range +16…+24% are optimal to keep the sound
smooth at higher notes. With Cutoff is set to 45 and
Keytrack

to 32%, the filter is tuned on C and pitch

matches oscillators (when Semitone is set to 0).

Velocity

-64...+63

Determines the amount of influence the filter envelope
has on the cutoff frequency, based on key velocity. This
parameter works similarly to the ENV F Amount para-

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