User Manual

NN-19 SAMPLER
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Filter Envelope
The Filter Envelope can be used to control two parameters; filter frequency and sample pitch. By setting up a filter
envelope you control the how the filter frequency and/or the sample pitch should change over time with the four Fil-
ter Envelope parameters, Attack, Decay, Sustain and Release.
Filter Envelope Amount
This parameter determines to what degree the filter will be affected by the Filter Envelope. Raising this knob’s value
creates more drastic results. The Envelope Amount parameter and the set filter frequency are related. If the Filter
Freq slider is set to around the middle, this means that the moment you press a key the filter is already halfway open.
The set Filter Envelope will then open the filter further from this point. The Filter Envelope Amount setting affects
how much further the filter will open.
Filter Envelope Invert
If this button is activated, the envelope will be inverted. For example, normally the Decay parameter lowers the filter
frequency, but after activating Invert it will instead raise it, by the same amount. Note that Invert does not affect the
Osc pitch parameter (this can be inverted by setting positive or negative values).
LFO Section
LFO stands for Low Frequency Oscillator. LFOs are oscillators in the sense that they generate a waveform and a fre-
quency. However, there are two significant differences compared to normal sound generating oscillators:
• LFOs only generate waveforms with low frequencies.
• The output of the two LFOs are never actually heard. Instead they are used for modulating various parameters.
The most typical application of an LFO is to modulate the pitch of a (sound generating) oscillator or sample, to pro-
duce vibrato.
The LFO section has the following parameters: