Design Laboratories Prologue User Manual
Contents
1. DELAY FLANGER to produce flange following where the flange pitch follows the decay envelope of perhaps a guitar Frequency Range 0 05 to 12Hz Duty Cycle Range 7 to 933 Output Voltage 0 to 5V Input CV 0 to TSV Key Input Sensitivity 10dBV 10 Notes 11 Notes Service Should your STUDIOFEX SF805 MODULATION SOURCE develop a serious fault DO NOT attempt to rectify it yourself Service work should only be carried out by qualified and experienced Service Engineers For this work to be done consult the dealer f rom who you purchased your SF805 or alternatively contact the Service Department at the address below The Service Department STUDIOMASTER Studiomaster House Chaul End Lane Luton Bedfordshire LU4 8EZ ENGLAND TEL 0582 570621 INTERNATIONAL TEL 44582 570621 TELEX 825612 STUDIO G FAX 0582 570242 INTERNATIONAL FAX 44582 570242 Or in U S A and Canada STUDIOMASTER INC 1340 G Dynamics Street Anaheim CA 92806 U S A TEL 714 524 2227 FAX 714 524 5096 The contents of this manual are correct at the time of going to press The manufacturer reserves the right to change specifications and features without prior notice STUDIOMFSTE eds U4 B7 Tel 05 20 Telex 825619 STUDIO G STUDICMASTES INC 1540 G Dynamics Street Ninak CA 92806 Tel 714 594 9997 Fox 714 594 502. overtighten Use only the screws provided STUDIOMASTER PART No FX07018 CONNECTIONS The mother unit incorporates a signal routing system which routes the output from a module to the input of the module to its right The 5 IILIS ui modules are therefore permanently connected in a daisy chain fashion Since the SF805 does not process the audio signal the LEFT and RIGHT audio busses pass straight through unaffected Connections to and from the modulation source must be made by jack leads The two CV OUTputs can be left permanently patched to the KEY inputs of two modulatable modules such as the Studiofex SF804 FADER PANNER and SF809 DUAL DELAY FLANGER If the ENVELOPE FOLLOWER function is required then this output must be used instead of one of the CV OUTputs The KEY DEPTH and KEY TRIG buttons bring the KEY CV INput socket into use This is a dual function input which can accept either a DC control voltage from another SF805 MODULATION SOURCE for instance or an AC signal such as a drum track or drum machine POSITION IN THE MOTHER UNIT Since the SF805 does not make use of the mother unit s routing system apart from allowing other signals to pass straight through its position in the mother unit is not critical It makes sense though to position it close to the modules which it is to modulate pplications The most natural panning using the Studiofex SF804 FADER PANNER and flanging using the SF809 DUAL DE
3. voltages with all the smoothness of a sinewave but also other waveshapes triggered single sweeps signal controlled modulation depth and even signal envelope following modulation Two outputs are provided each with an independent DEPTH control so that two devices can be modulated simultaneously features FRONT see FIG 1 1 2 The RATE control determines the repetition speed of the cyclic waves The SHAPE control determines the waveform that the SF805 produces variable from a rising ramp through sinewave to falling ramp see FIGS 3 to 5 The DEPTH 1 control varies the amplitude of the CV1 output and hence the DEPTH of the modulation The DEPTH 2 control varies the amplitude of the CV2 output and hence the depth of the modulation The KEY DEPTH button allows the signal at the KEY CV input to control the amplitude of the outputs The KEY TRIG button freezes the cyclic operation until a triggering signal is received by the KEY CV input then a single cycle is produced This LED lights when the output voltage is at a maximum and will flash in sympathy with the cycling action The RUN HOLD button allows the oscillator to modulate when depressed RUN or HOLDs it static This LED lights when the oscillator is RUNning REAR see FIG 2 10 ENVELOPE FOLLOWER OUTput jack socket 11 CV1 OUTput jack socket 12 CV2 OUTput jack socket 13 KEY CV INput jack socket 14 Module identification label 15 So
4. LAY FLANGER effects are achieved using SINEWAVE modulation Positioning the SHAPE control centrally at the 0 position will make the SF805 produce a sinewave Alternative settings of this control should be SMOOTH SWEEPS experimented with as it can offer some interesting non symmetrical effects FIGS 3 to 5 show the waveform with the SHAPE control fully anticlockwise central 0 and fully clockwise respectively 2 eu PD SHAPE Anti clockwise Fig 3 N SHAPE Central 70 Fig 4 SHAPE Clockwise Fig 5 8 Although the DEPTH controls have the range to allow for the full modulation sweep it will be found that more restrained settings will produce a subtle and more pleasing effect Smooth gentle sweeps are again associated more with the lower settings of the RATE control The further that this control is turned clockwise the more frantic the effect tends to become KEYED OPERATION When the KEY TRIG button is depressed the oscillatory action is frozen at the minimum value ie the bottom of the sweep If a short burst of signal is then applied to the KEY CV INput then a single cycle of modulation is produced One application for this would be to apply the Studiofex SF809 DUAL DELAY FLANGER to a cymbal sound and to use this same signal to trigger a modulation sweep so that every time the signal is played it will be characterised by the same shape of flange sweep Modulation sweeps in
5. Studio MASTEN Siegen A OOF loeo n Source y REO NAMIC wit R A805 Modutatron Source CONTENTS INTRODUCTION a a ses e e a MODULATION e ess 2 FEATURES 35 amp 3 9 wwe 3 FRONT uiu x ox ve 7 3 o 3 REAR ari e W eie e da A GS d OPERATION o MODULE IDENTIFICATION e gt gt INSTALLATION e gt gt e 2 o CONNECTIONS s a e POSITION IN THE MOTHER UNIT sc amp ou nu Un APPLICATIONS sc cs SMOOTH SWEEPS a KEYED OPERATION 8 ENVELOPE FOLLOWER 10 oss SPECIFICATIONS amp 10 NOTES 4 2 x 4 ww sas ja a Q2 mm m vvvprroo vue STUDIOFEX is a fully modular studio effects system which brings together both the features and the performance which today s music demands To get the best from the STUDIOFEX SF805 MODULATION SOURCE familiarise yourself with all of its features by reading these instructions thoroughly Please also read the instructions which are supplied with the STUDIOFEX MOTHER UNIT hou Certain modules in the Studiofex range can be modulated by means of a Direct Current DC Control Voltage CV The SF805 MODULATION SOURCE is capable of producing not only regular cyclic
6. cket identification label All jacks are wired Tip Signal Sleeve Ground e MODULATION SENS Some ENVELOPE FOLLOW our X CV1 OUT Front Fig 1 Rear Fig2 Operation MODULE IDENTIFICATION A sheet of labels is supplied Cut the MODULATION name from the label sheet and stick it above the module s jack sockets at the rear of the mother unit as shown in FIG 2 14 The socket names printed on the mother unit should be covered by the Socket Identification Label FIG 2 15 INSTALLATION To install the SF805 MODULATION SOURCE module into the mother unit firstly make sure that the power is switched off Then locate the circuit card of the module squarely into the top and bottom guide slots at the desired position in the mother unit Gently slide it in If the module comes to a stop part of the way in gently move it from side to side so that the rear of the card is guided into the rear guide slots Now push it fully in If resistance is felt at this stage remove the module and check that that the wafer connector has not become damaged Once the module s front panel is located flush with the front of the mother unit fix it in place with special posidrive screws supplied with it The bushes into which the screws are fitted are initially unthreaded so when first used some resistance will be felt as the special screws cut a thread NOTE Make sure the screws go in straight DO NOT
7. fact continue while the KEY signal is above a pre determined threshold level so if only sweep is reguired the cycle must last longer than the KEY signal that triggers it When the KEY DEPTH button is depressed the amplitude of modulation is reduced to zero but rests at the central modulation point Wen a KEY signal is applied the modulation increases either side of this resting point to a depth determined by the amplitude of the KEY signal This could be used for example to control the Studiofex SF804 FADER PANNER so that the depth of panning is determined by signal amplitude A guitar sound for example could occupy a panned stereo width which broadens when the guitar is played harder Since the KEY CV INput is also responsive to 9 Sm DC control voltages a second SF805 MODULATION SOURCE could be used to modulate the depth of the first allowing complex modulation patterns to be produced If both the KEY DEPTH and KEY TRIG buttons are depressed together the depth controlled cycle will always start from the same place when triggered ENVELOPE FOLLOWER This additional output is a function separate from the rest of the modulator apart from sharing the same KEY CV INput socket The ENVELOPE FOLLOWER OUTput always produces a control voltage proportional to the amplitude of a signal connected to the KEY CV INput regardless of any front panel control settings An example of its use would be with the Studiofex SF809 DUAL
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