StringZ Handbook.pdf

StringZ is a Physically Modeled String Ensemble Instrument from Krakli Software.. This simple

handbook seeks to demystify some of its controls..

Key Velocity

Impulse

Generator

Shaping

Delay line

with

Modulation

capabilities

Further Tuned

Delay used to

colour the sound

LowPass

Resonant

Filter

Voltage

Controlled

Amplifier

Vibrato LFO

Modulation

Envelope

Amplitude

Envelope

Impulse Generator

The impulse to drive the tuned delay line which acts as the master oscillator in

StringZ is provided by a Pink noise (a low frequency hiss) oscillator,but StringZ

also offers the chance to mix in 2 extra sine wave frequencies. There are

controls for Pitch and level for each. These provide a means to add extra

harmonics into the impulse signal which have the result of a brighter signal.

Experiment with small differences for the best effect.

The Attack control determines the intensity of the impulse start signal and higher

settings create more of a scrapedÓquality to the note.

The tunnel control alters the basic spread of oscillator frequencies at its lower

settings you get a more intense sound,at the higher settings you get a more

ensembleÓsound.

The velocity control alters the volume of the overtone levels the harder that you play on the

keyboard.

Shapng Tuned Delay

This section is used to create the movement in the StringZ tone. The

Envelope controls at the top are used to control the Attack,Decay,Sustain

and release of both the Shaping Section and also as a control source for the

Low pass filter mentioned further down.

The modulation controls affect the quality of the basic tone and the Env

sliders adust how much the envelope affects the tone over time.

The Cycle section controls are used to adust the bowing or ensemble effect,

with control for both rate or speed of effect and the intensity or depth of the

effect.

The Colour Secton

This is a further tuned delay line which can be wired In Line

(ILine)with the signal,between the oscillators and the filter

section or Out of Line (Oline) with the signal,with the

Oscillators signal going straight to the filter and also running

in parallel into the Colour unit and then onto the filter.

The Type control sets the basic form of colouration that the unit provides,small movements will

deliver vastly different results.

The Intensity control feeds the colouration back onto itself to increase the perceived effect.

The numbered slider alter the volume of the tuned frequency bands. NB With all sliders at the

minimum setting the unit has no effect on the signal.

The Damp control calms the effect slightly when move to the top of its travel

The Cut and Resonance controls bring in a HI&Bandpass filter which can be used to remove some

of the boominess in the colour effect or as an effect in their own right.

LowPass Resonant Flter

This is a basic SV filter with a couple of extra controls.

The Cut and Resonance controls affect the basic cutoff frequency and

resonance or peakiness of the filter effect. However because the oscillator

might have already passed through the colour unit the results achieved

are not always as you might expect from a tradition subtractive filter.

The Env control adusts how much the modulation envelopes ADSR signal affects the Cutoff

frequency of the Filter.

The Velocity control affects how much the hardnessÓof your keypresses affect the cutoff frequency.

The Track control adusts how the cutoff frequency is affected by the position of the note that you

are playing is in relation to the whole keyboard,two further controls affect the shape of the

keytrack effect (Normal or Inverse) ,and the shape of the curve of the Track effect (Linear,

Exponential curve or Inverse Exponential curve)

Volume Secton

A simple section providing an independent ADSR envelope controlling

the volume of the signal over time,An overall volume control and two

controls for velocity control:The Velocity slider which adusts the

volume of the notes in relation to how hard you play the keyboard,

and the A-Veloc control which shortens the ADSR attack cycle in relation to how hard you play the

keyboard.

The Glde Secton

Is used to provide a simple glide up or down at the start of each note

played. The speed control determins how long the effect takes to reach

its highest point. The Hold control determins the time spent at the

highest point and the range slider affects the overall tuning offset that

the effect applies. The Up/Down selector determines if the sweep is up to the correct note pitch,or

down to the correct note-pitch.

Vbrato Secton

Used to provide a vibrato to the notes pitch the controls are used to determine

the delay before the effect comes in,The speed or rate of the effect and the

amount or intensity of the vibrato effect.

Portamento Slder

A single slider used to control the rate of sweep from one note to the next. This occurs

when one note is still held down as a new one is played. In Polyphonic mode this effect is

a little harder to predict due to the note allocation rules,however in the mono modes the

effect is far more predictable.

Mono Secton

A section used to switch StringZ into a monophonic or one note

playable mode. Once switched on the further two switches

become applicable and are used to decide if the envelopes

retrigger on each new keypress,regardless of if the previous

note has been released,and whether the highest or lowest note played takes precedence.

We hope that you enjoy usng StrngZ as much as we enjoyed developng t.Many

thanks to the varous beta testers and patch wrters who helped to brng ths plug-n to

completon.

By ts very nature StrngZ sounds most lke ts ntended emulaton when t

s played through a lttle reverb or delay.We have delberately not ncluded

these wthn the desgn,however,as the majorty ofhosts nclude good

qualty unts as part ofther basc feature set.Ifths s not the case there

are a number ofexcellent 3 rd party Reverb unts whch are free and yet

gve excellent results.Further detals can be found on the forums at

wwwkvraudocom or wwwkraklcouk

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