Qu-Bit Electronix Synapse Manuel utilisateur
Synapse
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Contents
Description 4
Specifications 5
Installation 6
Marked Diagram 7
1. Cross Fade Channels 8
Per-channel Master Volume . . . . . . . . . . . . . . . . . . . . . . . . . . 8
+5V DC Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Linear / Constant Loudness Curves . . . . . . . . . . . . . . . . . . . . . . 9
2. Terminal Switches 9
Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Advance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Scatter .................................... 10
Click-less switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Sum Outputs 10
1+2/3+4.................................. 10
Sum ..................................... 10
4. Memory 11
Save ..................................... 11
Memory Edit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Resetting Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Randomizing Memory . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5. Inertia 12
6. Internal Modulation 12
LFO Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
LFO Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
LFO Relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
LFO Edit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Resetting Internal Modulation . . . . . . . . . . . . . . . . . . . . . . 13
Randomizing Internal Modulation . . . . . . . . . . . . . . . . . . . . . 14
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7. Factory Reset 14
State Recall 14
8. Edit Function Overview 15
Holding Scatter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Holding Save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Holding Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
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Description
Fade. Switch. Mix. Route.
Synapse is a crossfading switch with a signal path that can be rearranged on the fly. Its
dynamic routing and mixing functionality make it capable of turning static waveforms into
evolving soundscapes.
The core of Synapse is comprised of four crossfade circuits chained to a sequential switch,
all under digital control. This enables many intelligent behaviors that aren’t possible in
the analog domain. Crossfade positions can be saved in up to eight memory locations for
easy recall. These let you create sections within your patch, and travel through them with
a single knob – all without repatching. In addition, the switch outputs can be rotated left,
right, or randomized, enabling unique spatialization of sounds through effect chains, filters,
or other mixers.
Synapse can process CV signals just as well as audio and even generate its own adjustable
DC voltage for modulation. A configurable +5V DC offset is normalled to each B input,
allowing it to function as a four step sequencer or eight stage stored voltage source without
needing any additional modules.
• Configurable switching behavior eliminates clicks and pops
• Internal LFO modulation
• Eight memory locations save crossfade positions
• DC coupled inputs work for audio or CV signals
• Configurable internal +5V DC offset
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Specifications
Depth:
• 22mm
Current Consumption:
• +12V: 167mA
• -12V: 81mA
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Installation
To install, locate 20 HP of space in your Eurorack case and confirm the positive 12 volts
and negative 12 volts sides of the power distribution lines. Plug the connector into the
power distribution board of your case, keeping in mind that the red band corresponds to
negative 12 volts. In most systems, the negative 12 volt supply line is at the bottom. The
power cable should be connected to the Synapse with the red band facing the bottom of
the module.
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Marked Diagram
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1. Cross Fade Channels
Each Cross Fade Channel has two inputs: A and B.
Inputs are DC-coupled, suitable for audio or control signals.
Cross Fade Channels also have a knob and CV input to control the blending of the two
inputs.
When a channel’s cross fade knob is set fully counter-clockwise, only the A input signal
will pass to the outputs.
When a channel’s cross fade knob is set fully clockwise, only the B input signal will pass
to the outputs.
CV range is -5V to 5V, and adds to the knob position.
Per-channel Master Volume
Each pair of inputs can have its master volume adjusted.
To adjust a channel’s maximum volume, hold the Terminal encoder, and turn the channel’s
cross fade knob.
The LEDs for the inputs will illuminate white and the brightness will correspond to the output
level.
When a channel’s cross fade knob is set fully counter-clockwise, the A and B inputs for
that channel will be silenced.
When a channel’s cross fade knob is set fully clockwise, the A and B inputs for that channel
will have their maximum volume set to unity.
+5V DC Offset
A +5V DC offset can be enabled, allowing the Synapse to become a stand alone modulation
device.
When enabled, a +5V DC signal will be applied to each channel’s B input.
To activate the DC offset, hold the Terminal encoder and rotate the Memory knob.
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If the DC offset is enabled, the Out 1 LED will be illuminated blue.
When the Memory knob is moved below center, the DC offset will be disabled.
When the Memory knob is moved above center, the DC offset will be enabled.
The DC offset is disabled by default.
Linear / Constant Loudness Curves
The cross fade curve of the Synapse is configurable between linear and constant loudness.
To toggle between linear and constant loudness curves, press the Scatter button while
holding the Terminal encoder.
When Linear is selected, the Out 2 LED will illumintate white.
When Constant Loudness is selected, the Out 3 LED will illuminate white.
The curve for the cross fade channels is linear by default.
2. Terminal Switches
Each cross fade channel feeds into the Terminal switches and can be routed to any of the
four outputs.
The output LED will correspond to the currently selected cross fade channel.
Terminal
Rotating the Terminal encoder will shift each channel’s output in the direction of the rotation.
Clicking the Terminal encoder will reset all outputs to their default positions.
CV range is -5V to +5V and will shift right with positive voltage and left with negative voltage.
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Advance
Sending a trigger or gate signal to the Advance input will move all channels one output to
the right.
This allows Synapse to function as a traditional sequential switch.
Scatter
Pressing the Scatter button will shuffle the positions of all outputs.
Sending a trigger or gate to the Scatter input will shuffle the positions of all outputs.
Click-less switching
Click-less switching can be enabled to suppress clicks and pops when switching between
audio signals.
To activate the click-less switching, hold the Terminal encoder and rotate the Inertia knob.
If click-less switching is enabled, the Out 4 LED will be illuminated blue.
When the Inertia knob is moved below half, click-less switching will be disabled
When the Inertia knob is moved above half, click-less switching will be enabled.
Click-less switching is enabled by default.
3. Sum Outputs
1+2/3+4
Post-switch sum of the signals being output by the designated channels.
Sum
Pre-switch sum of the output of each cross fade channel.
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