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1. MIDI Controller Parameter 12 Sample amp Hold sync 13 Sample amp Hold rate 14 Sample amp Hold synced rate 15 Sample amp Hold phase 16 Sample amp Hold synced phase 17 Sample amp Hold duration 18 Sample amp Hold resolution 19 Filter lock 20 Filter locked type 21 Filter locked cutoff frequency 22 Filter locked resonance 23 Filter rise type 24 Filter fall type 25 Filter rise cutoff frequency 26 Filter fall cutoff frequency 27 Filter rise resonance 28 Filter fall resonance 29 Sample amp Hold on off 30 Filter on off 31 Bypass 33 Sample amp Hold Filter order ZVORK Volt SH 1 User Manual More information at http www zvork fr audio O 2012 Olivier Prat 102. User Manual version 1 0 0 ZVORK Volt SH 1 User Manual Table of Contents DaO e o e A A DIS De A nee een Process na OT ee ee DR sete aenieeteesa Ga unye E eeance E E DICK Pande Geicssudcasesdeesssceesesseseceresece O ea Modulallonc y O ee E ato PTO Ee EE MIDI Implementation CM ar E ZVORK Volt SH 1 User Manual Introduction The Volt SH 1 is a control voltage CV sampling and filtering unit With it you can sample a signal at any rate any resolution hold the value for any duration and even sample the signal asynchronously with a gate trigger input The signal can also be low pass high pass and band pass filtered before or after sampling ZVORK Volt SH 1 User Manual Front Panel wir VOLTSH 1 N Sample amp Hold MA Filter The functionalities of the front panel will be described here from left to right and top to bottom Bypass The bypass switch behaves as normal Here are the three states of the switch e On The default position The input signal is transformed and filtered and sent to the output e Off No signal is sent to the output which is set to value 0 e Bypass The input signal is sent directly to the output without any processing Sample amp Hold This unit enables you to sample the input signal at a user defined rate holding the CV value for a specified duration The unit can be turned on off by pressing the button at the left of th
3. and fall filters MA Filter Metering The display meter lets you visualize the signal as it is output from the Filter stage 1 is at the left and 1 at the right of the display Type There are three possible filter types e Low pass filter out high frequencies above the cutoff frequency e High pass filter out low frequencies under the cutoff frequency e Band pass filter out high and low frequencies around a central frequency ZVORK Volt SH 1 User Manual Frequency This is the cutoff frequency of each filters with values in the sub audible range Resonance The resonance of the filter High values can give you interesting bouncing and wobbling effects on your CV s Lock When enabled which is the default the filter settings are the same for both rise and fall of the input signal If not you can configure the filtering differently You can for instance keep sharp rises by setting the rise filter cutoff to the maximum value but create slow releases of the signal by setting the fall filter cutoff to low values Illustration 4 square signal processed by a low cutoff low pass for the rise and a mid cutoff high pass for the fall with a slight resonance ZVORK Volt SH 1 User Manual Back Panel PRISE Sample A Hold ez Al r T ar A S e FE Input A ___ gt A Output The back panel exposes the input and final output CV
4. slots but also a number of CV sockets to modulate all the front panel knob driven parameters Sample Trigger When a CV cable is plugged in the Gate CV input the sample time can be controlled externally The sampling is triggered each time a gate signal is received This overrides the internal sampling clock controlled by the Rate N and Phase knobs but the Rate setting will still be used to determine the duration of the hold Modulation CV inputs All the front knobs can also have their values modulated by control voltage signals coming from other devices Trim knobs let you control the amplitude of the modulation These modulation signal can be seen as actually driving the knobs a zero value indicates the knob is fully turned to the left while a one value indicates it is fully to the right Filter modulation The modulation on the filter parameters will always be applied separately to the rise and fall states even when the filter is locked If it is locked you can add a separate cutoff frequency modulation only to the rise state by plugging a CV signal to the rise cutoff frequency CV input So if you want the filter to be modulated the same on the rise and fall you must duplicate your CV signal with a CV spider for instance and plug it in both CV inputs ZVORK Volt SH 1 User Manual MIDI Implementation Chart
5. e Sample amp Hold label When it is on the button is lit e Sample amp Hold Metering The display meter lets you visualize the signal as it is output from the Sample amp Hold Stage 1 is at the left and 1 at the right of the display Sync When enabled the rate see below can be specified in note durations synced to the tempo and transport position The phase see below is also quantized to 1 16 of the rate Rate This is the sampling rate or period adjustable in seconds or note durations when synced Phase This offsets the sample instant for a percentage of the sample period This is most notable when Sync is enabled In this case setting the phase to 0 or 100 puts the sample time precisely on a note Setting it at 50 puts the sample time halfway between two notes ZVORK Volt SH 1 User Manual Phase 0 a 0 Phase 50 Illustration 1 Effect of setting the phase to 50 of the sampling period Duration This sets the hold duration of the sample value as a percentage of the sample period When the time exceeds the duration the CV value is 0 Illustration 2 Effect of setting the duration to 50 of the sampling period Resolution You can specify the value resolution or precision at which the CV signal is sampled When off this is ignored When set differently this indicates the number of possible value steps between 0 and 1 excluding O which will always be output as 0 For ins
6. tance when set to 5 there will be five possible values for the sample value if it is between zero and one 0 2 0 4 0 6 0 8 and 1 1 5 2 5 3 5 4 5 and 1 In the range 1 and 1 this gives 11 possible values 5 between 1 and 0 O and 5 others between 0 and 1 When set to 127 this gives you the equivalent of an 8 bit resolution ZVORK Volt SH 1 User Manual Illustration 3 Effect of setting the resolution to 3 Sample time lamp This little lamp is lit when the SH 1 is sampling the input signal This lets you visualize the sample times more clearly especially in respect to the phase Processing order By pressing one these two exclusive buttons you determine the order in which the two Sample amp Hold and Filter units are applied to the input signal The arrow on the buttons indicate the signal flow By default the Sample amp Hold is applied first and the filter second Filter This unit lets you filter the CV signal lt has the classic low pass high pass and band pass filter types Less classic is the possibility of having different filter settings between signal rises and signal falls The rise filter settings are at the left of the lock button and the fall filter settings at the right The unit can be turned on off by pressing the button at the left of the Filter label When it is on the button is lit The three parameters Type Frequency and Resonance are duplicated for both rise
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