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3.1 overview 

The Pittsburgh Modular Lifeforms SV-1 combines the functionality of 12 
individual modular synthesizer modules behind a single panel. Connect di

erent 

modules using patch cables to create complex sounds and textures.

The Lifeforms SV-1 signal path is divided into two types of signals: audio signals 
and control voltages. The audio signal is the sound that is produced. The audio 
signal path starts at an oscillator or other sound source. The audio signal is then 
patched through other modules used to shape the sound such a mixer, filter, or 
amplifier.  

Control voltages (cv) manipulate the audio signal in several di

erent ways. Gates 

are represented by a high or low control voltage. A gate can be generated using 
a pulse or square wave from an oscillator or modulation source, or by using the 
gate or clock output from the midi module. A gate can be shaped using the adsr 
to control the attack, decay, sustain, and release of the gate. The modified gate 
signal can then be sent to any cv input on the Lifeforms SV-1.

A second use for control voltages is as a modulation source. For example, a 
control voltage from the v/o output of the midi module patched into the v/o input 
on the oscillator 2 module controls the frequency of oscillator 2 based on the 
midi note received. The modulation module provides a separate low frequency 
oscillator that makes a perfect control voltage modulation source. Audio signals 
also make a great control voltage source for oscillator FM (frequency 
modulation).

6

3. lifeforms sv-1 modular synthesizer overview

3.2 panel labeling conventions 

The Lifeforms SV-1 uses several simple labeling conventions to make the user 
interface and signal flow easy to understand.

The large gray rectangles outlined in black are used to separate individual 
modules.

Output jacks are labeled using plain black lower case letters.

Input jacks are labeled using white lower case letters surrounded by a black 
background.

Internally patched signals are labeled with parenthesis at their destination.

3.3 manual labeling conventions 

Within the user manual, user interface buttons, knobs, and jacks are marked 
with brackets. For example [clock led] refers to the led labeled clock in the midi 
section.

Содержание lifeforms sv-1

Страница 1: ...g on the sound and legacy of our celebrated Waveforms oscillator the SV 1 module features two full range independent analog oscillators sound sources that are perfect for dynamic and inspired performa...

Страница 2: ...illator 2 module page 19 20 8 modulation module page 21 9 mixer module page 22 10 tools module page 23 2 table of contents 11 filter module page 24 12 adsr module page 25 13 voltage controlled amplifi...

Страница 3: ...the ribbon cable marks 12v This stripe needs to line up with the 12v pins on the power rail and the 12v pins on the module The Lifeforms SV 1 includes reverse polarity protection so it will not be da...

Страница 4: ...r fm input level control 24 oscillator 1 width cv attenuator blade pulse width input level control 25 oscillator 1 width cv input jack blade pulse width modulation input 26 oscillator 1 sync input jac...

Страница 5: ...ise output jack analog noise output jack 66 sample hold sample input jack sample source input jack 67 sample hold hold input jack hold gate input jack 68 sample hold output jack sample hold output jac...

Страница 6: ...the Lifeforms SV 1 A second use for control voltages is as a modulation source For example a control voltage from the v o output of the midi module patched into the v o input on the oscillator 2 modul...

Страница 7: ...s This allows total patching freedom without the constrains of a fixed voice architecture The patch points that the SV 1 uses internally are clearly marked on the panel with the origin of the signal w...

Страница 8: ...dent sections Midi oscillator 1 oscillator 2 lfo mixer tools filter adsr vca splitter splitter and outputs Each module can operate on its own and can be patched into any other module within the Lifefo...

Страница 9: ...ode creates a repeating sequence of 1 volt per octave cv and gate signals based on the incoming midi notes The mode button switches between monophonic and arpeggiator modes The selected mode is identi...

Страница 10: ...tween 6 di erent monophonic response types The selected type is identified by a blinking mono led The number of times the mono led blinks identifies the selected monophonic response type The selected...

Страница 11: ...lected notes after the selected notes have been unpressed The arp led will blink while the hold function is enabled Disable the hold function by pressing the hold button The arp led will stop blinking...

Страница 12: ...gnals patched into the clock i o jack The external gate clock is used to clock the arpeggiator With the external gate clock source the clock button cycles through six available clock divisions 12 5 3...

Страница 13: ...ock division The digital lfo can run at a division or multiple of the active clock source To select a clock division Press and hold the lfo button then tap the clock button to cycle through the digita...

Страница 14: ...ting the midi cc source The midi cc source is selected in the edit mode Enable edit mode by pressing and holding the edit button down for 1 second The mono led arp led gate led and clock led will blin...

Страница 15: ...e hold function by pressing the hold button The mono led will stop blinking to verify the hold function is disabled In arpeggiator mode enable the hold function by pressing the hold button The hold fu...

Страница 16: ...midi channel 1 blink for channel 1 2 for channel 2 etc For all channels the mono led will blink at a steady rate To modify the pitch bend range tap the edit button until the arp led is blinking The pi...

Страница 17: ...ator 1 fm input attenuator Oscillator sync is available using the oscillator 1 sync input jack Sync works best when the frequency of the sync source is slightly higher than the frequency of oscillator...

Страница 18: ...ol sets the amount of signal allowed to pass from the oscillator 1 fm input jack to the oscillator core oscillator 1 width cv input jack Blade pulse width modulation input Controls the width of the pu...

Страница 19: ...w frequency oscillator range to ultrasonic allowing oscillator 2 to function as both an audio source and modulation source All 4 waveforms are available simultaneously Exponential frequency modulation...

Страница 20: ...to the base frequency Used to control the pitch of the oscillator with a keyboard controller sequencer or other calibrated voltage source oscillator 2 fm input jack Exponential fm input jack used for...

Страница 21: ...led Lfo frequency indicator modulation lfo triangle output jack Triangle wave modulation lfo square output jack 50 period square wave 8 modulation module 8 1 modulation overview The modulation section...

Страница 22: ...channel 3 and channel 4 are sent to the mix output jack 9 2 mixer interface channel 1 input jack Channel 1 audio or cv input jack channel 1 input attenuator Channel 1 input attenuator channel 2 input...

Страница 23: ...bit of edge to a sound Sample Hold samples the voltage patched to the sample hold sample input jack and outputs that voltage until a new sample voltage is taken A sample is taken when the Hold input...

Страница 24: ...wpass filter is gummy and relaxed while the highpass is clean and defined The goal was to produce a filter that did not have a sweet spot where the every turn of the frequency knob produced something...

Страница 25: ...the envelope generator to reach the peak output voltage and move on to the decay stage Decay sets the amount of time needed to transition to the level set by the sustain knob The sustain level is mai...

Страница 26: ...e synth voice signal chain and controlled with the output of the adsr to musically shape the volume of the synthesizer voice 13 voltage controlled amplifier module 26 13 2 adsr interface amplifier lev...

Страница 27: ...iers Patching into the splitter allows one audio or control voltage signal to be sent to two destinations 14 splitter module 27 14 2 splitter interface splitter input jack Splitter input jack splitter...

Страница 28: ...he same monophonic signal is routed into both the left and right channels 15 outputs module 28 15 2 outputs interface outputs level control knob Headphone and main output level knob outputs input jack...

Страница 29: ...sing only the Lifeforms SV 1 and a midi keyboard The patches are designed to familiarize musicians with the layout and potential available within the Lifeforms SV 1 Audio signals are shown in purple a...

Страница 30: ...30 16 2 default patch The Lifeforms SV 1 is internally patched as a single oscillator monophonic synthesizer Using patch cables between the prepatched jacks is redundant and unnecessary...

Страница 31: ...cables are necessary Add pitch tracking to oscillator 2 by patching the v o output jack into the oscillator 2 v o input jack Add the saw wave from oscillator 2 to the audio signal path by patching int...

Страница 32: ...idi module The lfo is used to control the filter cuto frequency Don t forget to tap the lfo button to cycle through the available waveforms The cc output is patched into the width control of oscillato...

Страница 33: ...illator 1 and use the digital lfo random waveform to control the filter cuto frequency Select the digital lfo random waveform using the lfo button Trigger the adsr with the midi clock to create an aut...

Страница 34: ...sample hold wave crusher patch The analog sample hold can be used to simulate a bit crushing e ect by patching oscillator 1 into the sample input and controlling the rate of the sample hold with oscil...

Страница 35: ...up with hi hats Very customizable with a wide range of sounds available Perfect for everything from chirps to snares to blips and hats Set the digital lfo waveform to random Switch to the lowpass out...

Страница 36: ...he mixers ability to function as two independent mixers The top half is used to mix waveforms from oscillator 1 and the bottom is used to blend the triangle wave from the lfo with the adsr output The...

Страница 37: ...e soundscape built around 4 octaves of waveforms from oscillator 1 The digital lfo waveform selected is not terribly important The additional patch cable colors are for clarity only Once the patch is...

Страница 38: ...is calibrated to the eurorack 1 volt per octave standard Below is the calibration procedure The volt per octave tracking trimpot is located on the left side of the Lifeforms SV 1 module It is labeled...

Страница 39: ...ips fully calibrated The following information is included for reference only The oscillator 1 v o input jack is calibrated to the eurorack 1 volt per octave standard Below is the calibration procedur...

Страница 40: ...The Lifeforms SV 1 oscillator 2 ships fully calibrated The following information is included for reference only The oscillator 2 v o input jack is calibrated to the eurorack 2 volt per octave standar...

Страница 41: ...ms SV 1 module The trimpots are labeled FTRIM frequency and QTRIM resonance Adjust using small turns Patch a saw wave into the filter module While sweeping the filter cuto frequency knob adjust the FT...

Страница 42: ...18 1 Lifeforms SV 1 module specs Panel size 48hp Module depth 35mm Power consumption 230mA with reversed power polarity protection 18 eurorack specs 42...

Страница 43: ...the Lifeforms SV 1 has been damaged by accident mishandled altered improperly serviced or repaired by the customer where such treatment has a ected its performance or reliability This includes but is...

Страница 44: ...contact info Please contact us for service or other information related to the Lifeforms SV 1 or any other Pittsburgh Modular product www pittsburghmodular com contact 20 service and other informatio...

Страница 45: ...pittsburgh modular synthesizers Copyright 2016 Pittsburgh Modular Synthesizers LLC...

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