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UniSyn

 Universal Audio to Synth Interface User’s Manual

7) Select SAW/SQR waves via the 2-way switch to hear the 

different waveforms  and adjust the WAVE MIX knob to achieve 

the desired mix of saw/ sine waves.  Adjust the VCF 

FREQ knob to hear its effect on the sawtooth and square waves.  

Experiment with the MIDI BEND settings to observe the effect on 

the envelope to VCF modulation depth.

8) Adjust the TRACKING switch to optimize the frequency tracking 

for the audio source chosen.  For most cases the FAST setting 

works well.  There are some instruments with slower attack/decay 

and strong harmonics (like bowed strings) which can work better 

with the MID or RICH settings.  As a rule of thumb, if you hear the 

UniSyn locking to higher harmonics of the fundamental, try the 

MID or RICH setting.

9) Adjust the HARMONY knob to hear the various pitch shift 

settings.  Here it is especially useful to mix the dry and wet signals 

together so it’s easier to hear what harmony interval is tuned.  

Note that the harmony knob is continuous, it does not give you 

“clicks” when moving from one harmony to another.

Controlling External Synths Via CV/MIDI

10) Patch the PITCH, GATE and ENV signals out to an analog synth 

of your choice and enjoy “playing” that synth with the audio 

source of your choice!  Note that you can adjust the HARMONY 

knob to offset the Pitch CV out in discrete semitone steps over the 

/-2v range to accommodate the pitch CV offset of virtually 

any analog synth.

11) Connect the MIDI output to the digital synth of your choice 

via the included TRS-to-MIDI adapter and a standard MIDI DIN5 

cable and enjoy “playing” that synth with the audio source of 

your choice.  Experiment with the three MIDI BEND options to 

understand how they impact the pitch accuracy and note on/off 

behavior using MIDI.  Note that the HARMONY knob will pitch 

shift the MIDI note so adjust HARMONY to unison if you want 

MIDI in unison with your audio input.

Summary of Contents for UniSyn

Page 1: ...UniSyn Universal Audio to Synth Interface User s Manual www secondsound com...

Page 2: ...internal synth voices CV and MIDI using an optional sustain pedal not included Provide a 1v oct FM CV input for modulating the pitch of the internal synth voices as well as the CV and MIDI outs Provid...

Page 3: ...vide minimum 100mA D PRE OUT 4dBu or 20dBu preamp output after automatic gain control AGC E Combo XLR or balanced unbalanced INPUT Monophonic audio input level can range from mic to line level Note Th...

Page 4: ...3 1 OFF WAVE MIX INF 0 LEVEL 20 6 PHANTOM POWER SOURCE OUT MIX SYNTH 1 1 UniSyn 13 MIDI OUT SD CARD 4dBu 20dBu OFF ON OFF 75 10dBu 8dBu 4 7 14 15 17 18 19 Input Conditioning Section 1 24v Phantom Pow...

Page 5: ...8v 9 Envelope CV Envelope CV output Output range 0 6v 10 Gate CV Outputs 5v when note played 0v otherwise Adjacent Red LED is illuminated when gate is OFF 11 FM CV input CV input for modulating pitch...

Page 6: ...Clock Envelope controls Aftertouch Channel Pressure 12 O Clock Envelope controls Mod Wheel CC 2 O Clock Envelope controls Breath Controller CC Fully CW Envelope controls Expression CC 18 Source Synth...

Page 7: ...stand the signal flow inside the UniSyn First the AGC is applied to the input signal boosting it by a gain from 0 50dB to achieve the optimum preamp output level The AGC preamp is followed by a switch...

Page 8: ...s on when no audio is being played With plucked string instruments like guitar it may take some tuning to get the gate to differentiate exactly when a note is being played from the low level transient...

Page 9: ...e it is especially useful to mix the dry and wet signals together so it s easier to hear what harmony interval is tuned Note that the harmony knob is continuous it does not give you clicks when moving...

Page 10: ...by a maximum of 8dB before it stops increasing The gain reaches this maximum increase of 8dB when the input level reaches 12dBFS after which the output level will fall linearly as the input level kee...

Page 11: ...st be increased Problem High guitar notes on the high E string sound too weak Solution Try enabling 3 1 compression it is especially helpful for audio inputs with wide dynamic range like guitar whose...

Page 12: ...UniSyn Second Sound LLC 3570 Hibiscus St Miami FL 33133 tel 305 498 5918 www secondsound com www facebook com secondsoundaudio www instagram com secondsoundaudio www youtube com secondsoundvideos...

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