LH Rubbing is a polyphony software
synthesizer app for iPad running on iOS 6.0 or
latter. There are three wave oscillators, one noise
oscillator, two LFOs and one three type embedded
filter (low-pass, hi-pass and bandpass).
Each wave oscillator can generate
three kinds of waveform which are triangle, square
and saw wave.
LFO can be attached to different
modul for different modulation or control such as
OSC Pitch, PW, Filter Cutoff Frequency, Filter
Resonance and OSC Output Mixing.
The frequency and amplitude of the
1st LFO can be modified by the 2nd LFO.
Pitch, Filter Cutoff Frequency and
Resonance can be controlled by the ADSR envelope
The Keyboard Rubbing brings up
vibrato while control the vibrato rate and depth.