Format: Eurorack
Width: 4HP
Depth: 27mm
Current: 40mA @ + 12V, 15mA @ -12V
Tagh is a compact modulation hub with analog sample-and-hold, digital random voltage generator, morphing LFO, stochastic trigger generator, white noise generator, all with a unique phase-adaptive tap tempo function. corresponds to
Meticulously curated based on extensive experimentation with random voltage generation, Tagh features six random algorithms including Classic Step Random, Repeatable Step Random, Chaos, LFO and Stochastic Sync. Includes LFO, downsampling LFO.
The Tagh v2 has an analog sample and hold section at the top of the panel and a digital random/LFO section at the bottom.
The algorithm for the Digital Random/LFO section is as follows.
Algorithm 1 - Classic Step Random
A digitally generated random step derived from pseudorandom number generation.
This is the most "traditional" random algorithm.
Dynamic parameters:
・The random slider controls the amount of slew between random steps.
• With the Clock/CV switch in the down position, a positive voltage at the Clock/CV input controls the amount of slew between random steps.
• When the clock/CV switch is in the down position, any negative voltage at the clock/CV input defines a stochastic chance for a new random step.
・0V = 100% chance
-5V = 0% chance
Algorithm 2 - Repeatable Step Random
A digitally generated random step derived from pseudorandom number generation.
Dynamic parameters:
• The random slider defines the number of steps in the loop.
- The length of the repeated pattern can be set between 1 and 16 steps.
• When the clock/CV switch is in the down position, random steps are locked into a repeating ring buffer if the gate is held HIGH at the clock/CV input.
・Threshold voltage: 4.71V
Algorithm 3 - Chaos
On each clock cycle, the algorithm can flutter, cycle, wobble, generate random control voltages, or drift.This algorithm works best for slow tempo clocks.
Dynamic parameters:
• A more basic random step voltage is generated when the random slider is in the fully up position.
- If the random slider is in the fully downward position, it will generate complete chaos.
• The Random slider vaguely crossfades between these extremes.
• Bipolar voltages in the -/+5V range at the Clock/CV input are summed to the random slider position when the Clock/CV switch is in the down position.
Algorithm 4 - LFOs
A digitally generated interpolated LFO waveform. The LFO rate matches the tempo, but is not phase aligned.Tempo/frequency changes are fully interpolated and perfectly smooth.
Dynamic parameters:
- Moving the Random slider from all the way down to all the way up will interpolate between the following waveforms:
·sign
・Triangle
・Rising Sawtooth (Ramp)
・Square
・Inverted sign
Bipolar voltage range of -/+5V on clock/CV input expands waveform options when clock/CV switch is in down position
• Falling sawtooth and other reverse polarities are available.
Algorithm 5 - Stochastic Sync LFO
A digitally generated interpolated LFO waveform.If the clock probability engine is enabled, the LFO rate will match the rhythm-related subdivisions.Tempo/frequency changes are fully interpolated and perfectly smooth.
Functionally, this algorithm is the same as Algorithm 4, but the LFO frequency adapts and follows rhythm-related subdivisions.
Dynamic parameters:
- Moving the Random slider from all the way down to all the way up will interpolate between the following waveforms:
·sign
・Triangle
・Rising Sawtooth (Ramp)
・Square
・Inverted sign
Bipolar voltage range of -/+5V on clock/CV input expands waveform options when clock/CV switch is in down position
• Falling sawtooth and other reverse polarities are available.
Algorithm 6 - Downsampling LFO
Digitally generated interpolated LFO waveform with downsampling control. LFO rate matches tempo but is not phase aligned.Tempo/frequency changes are fully interpolated and perfectly smooth.Functionally, this algorithm is the same as Algorithm 4, but the LFO waveform may be downsampled.
Dynamic parameters:
- Moving the Random slider from all the way down to all the way up will interpolate between the following waveforms:
·sign
・Triangle
・Rising Sawtooth (Ramp)
・Square
・Inverted sign
• When the Clock/CV switch is in the down position, a positive voltage at the Clock/CV input will decrease the sample rate of the LFO waveform.
• +5V stops the held amplitude.
• When the Clock/CV switch is in the down position, a negative voltage at the Clock/CV input will decrease the sample rate of the LFO waveform.
• Sample rate reduction is directly proportional to the LFO tempo.
The digital random section can add a constant voltage to the output voltage (offset) or attenuate the amplitude of the output (attenuate).The signal is first offset and then attenuated.
Offset: Press and hold the Shift button and press the Tap Tempo button, it will flash amber.From there, hold down the shift button and move the random slider to offset the signal in the random algorithm output.Centering the random slider produces a bipolar signal centered around 0V at the random algorithm output.The Tap Tempo button flashes off-white when centered.
Attenuate: Press the shift button three times, hold the third press, and move the random slider to determine the amplitude of the signal at the random algorithm output.The tap tempo button and shift button blink white during operation.
It is factory reset by holding down both the shift and tap tempo buttons and toggling the random toggle up and down 3 times.
