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Harmadillo

Harmadillo is a flexible harmonic tremolo algorithm offering everything from lush soulful tremolos to psychedelic mind-bending weirdness. It has a player-centric feature set that allows you to sculpt your sound in powerful ways, and offers a wide variety of LFO shapes, from traditional sine, triangle, and pulse shapes to newer shapes like ramp, lump, rump, and a continuously variable decaying slope.
 
Harmadillo draws inspiration from classic tube-amplifier harmonic tremolo circuits and analog harmonic tremolo pedals. We’ve noticed that our vintage tube amp seems to have a scoop in the midrange for its harmonic tremolo effect that lines up with its crossover frequency. This scoop is partly the result of the crossover not being perfectly flat. Though it may be “imperfect” as a crossover, it also sounds great, and we've seen similar scoops on harmonic tremolo pedals. Because of tolerances in the analog components, no two are exactly alike. With Harmadillo, you can adjust not only the frequency of the crossover but also the amount of overlap between the low and high bands, and this allows you to adjust the character of the tremolo in subtle or dramatic ways. It also features a drive control so you can add a little extra warmth to your sound, as well as a tone control so you can shape the low or high end.  
 
Harmadillo features three ENV (envelope follower) controls that use your picking and playing dynamics to affect the tremolo's rate, depth, and crossover frequency. These controls can make subtle or dramatic changes to your sound and add significant flexibility to the effect. For example, you can use the ENV DEPTH control to temporarily reduce the depth of the tremolo when you pick -- this allows you to use deeper depth settings without having to worry about your attacks getting lost. As another example, you can use the ENV FREQ control to create auto-wah or phaser effects controlled by your picking and playing dynamics. To help you better understand how the ENV controls work, we've included a custom user interface for the desktop and tablet versions of H9 Control that provides animated feedback. 
 

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Harmadillo Algorithm Controls
DEPTH [DEPTH]
This is the depth of the low and high bands of the tremolo.
RATE [RATE]
This is the base rate of the tremolo. In tap tempo mode, this becomes a multiplier on the tapped BPM value.
SHAPE [SHAPE]
The shape of the tremolo waveform. The same shape is used for both high and low bands. The shapes describe what happens to the low band, since it's usually the main part of your sound; the high band will change in the opposite direction. Options are:
X-OVER [XOVER]
The XOVER control determines where in the frequency spectrum the low band ends and the high frequency band begins. In practice, each band rolls off around the crossover frequency, so they overlap a bit. The X-OVERLAP control allows you to adjust the amount of overlap; see below.
X-OVERLAP [XOVRLP]
The X-OVERLAP control adjusts the amount of overlap between the high and low bands. Negative values will produce a cut at the crossover frequency, and positive values will produce a boost at the crossover frequency.
DRIVE [DRIVE]
The DRIVE control adds warmth to the signal by mimicking the behavior of a tube amplifier's harmonic tremolo.
ENV DEPTH [EVDPTH]
The ENV DEPTH control uses the amplitude envelope of the input to increase or decrease the tremolo's depth.
ENV RATE [EVRATE]
The ENV RATE control uses the amplitude envelope of the input signal to affect the rate of the tremolo.
ENV XOVER [EVXOVR]
The ENV XOVER control uses the amplitude envelope to affect the crossover frequency.
TONE [TONE]
A tone control for shaping the high or low end of the output signal. Negative values roll off high frequencies (HICUT), and positive values roll off low frequencies (LOCUT).
Output Level
At 0 the output level is unaffected. Increase the output level of the effect by up to 20 dB or lower by 30 dB.
TEMPO ON / TEMPO OFF
Tempo is turned ON/OFF on the H9 by simultaneously pressing the Right Footswitch and the PRESETS button. With Tempo OFF, tapping can be used to adjust delay parameter values (displayed as milliseconds or Hz). With Tempo ON, tempo is in BPM.
Active
Turn effect on or off..
HotSwitch
The Middle Footswitch can be programmed to act on the loaded Preset as a programmable controller allowing the user to switch between the normal Preset parameter values and a programmed, alternate set of parameter values. It’s like having two Presets in one.
TAP
If Tempo is ON, the display indicates the current tempo in BPM (30 to 500 BPM) while tapping and the Tap LED will blink at the BPM rate. If Tempo is OFF, the display indicates the parameter value (milliseconds for most algorithms).
Harmadillo Secondary Controls