Intellijel Noise Tools 1U Manual Download Page 4

  

 

 

Noise Tools 1U Manual

 

 

 

 

Installation 

This module is designed for use within an 
Intellijel-standard 1U row, such as 
contained within the Intellijel 4U and 7U 
Eurorack cases. Intellijel’s 1U specification 
is derived from the Eurorack mechanical 
specification set by Doepfer that is 
designed to support the use of lipped rails 
within industry standard rack heights. 

 

Before Your Start 

Intellijel Eurorack modules are designed to be used with a Eurorack-compatible case and power 
supply. We recommend you use Intellijel cases and power supplies. 

Before installing a new module in your case, you must ensure your power supply has a free 
power header and sufficient available capacity to power the module: 

Sum up the specified +12V current draw for all modules, including the new one. Do the 
same for the -12 V and +5V current draw. The current draw will be specified in the 
manufacturer's technical specifications for each module. 

Compare each of the sums to specifications for your case’s power supply. 

Only proceed with installation if none of the values exceeds the power supply’s 
specifications. Otherwise you must remove modules to free up capacity or upgrade your 
power supply. 

You will also need to ensure your case has enough free space (hp) to fit the new module. To 
prevent screws or other debris from falling into the case and shorting any electrical contacts, not 
leave gaps between adjacent modules, and cover all unused areas with blank panels. Similarly, 
do not use open frames or any other enclosure that exposes the backside of any module or the 
power distribution board. 

 

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Summary of Contents for Noise Tools 1U

Page 1: ...Noise Tools 1U Manual Noise Tools 1U Clock Random Pulse Analog Noise Sample Hold and Slew Manual Revision 2018 09 13 ...

Page 2: ...Noise Tools 1U Manual Table of Contents Table of Contents Compliance Installation Before Your Start Installing Your Module Overview Front Panel Controls Inputs and Outputs Technical Specifications Page 1 ...

Page 3: ... with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interferenc...

Page 4: ...the module Sum up the specified 12V current draw for all modules including the new one Do the same for the 12 V and 5V current draw The current draw will be specified in the manufacturer s technical specifications for each module Compare each of the sums to specifications for your case s power supply Only proceed with installation if none of the values exceeds the power supply s specifications Otherwis...

Page 5: ...h the 12V pins on the module s power connector The pins are indicated with the label 12V a white stripe next to the connector the words red stripe or some combination of those indicators Most modules will come with the cable already connected but it is good to double check the orientation Be aware that some modules may have headers that serve other purposes so ensure the cable is connected to the ...

Page 6: ... correctly aligned If the pins are misaligned in any direction or the ribbon is backwards you can cause damage to your module power supply or other modules After you have confirmed all the connections you can reconnect the power cable and turn on your modular system You should immediately check that all your modules have powered on and are functioning correctly If you notice any anomalies turn your...

Page 7: ...is used to modulate a filter s cutoff frequency or an oscillator s pitch or pulse width then all sorts of raspy buzzy gritty timbres are obtained Noise is also a key ingredient in sample hold circuits so one is included in Noise Tools Sample Hold S H is a technique most commonly used to generate stepped random voltages The circuit works by you guessed it sampling an input signal s voltage each time...

Page 8: ... range clocks in the middle of the sweep to audio rate pulses that top out at 2 5 kHz at the maximum clockwise setting In RANDOM mode the knob sets the probability that Noise Tools will generate a pulse Internally Noise Tools generates a pulse every 10 ms with the knob determining how likely that pulse will be passed to the output When the knob is set to lower counter clockwise values most pulses ...

Page 9: ...il the next rising pulse edge This creates a new static voltage every pulse which Noise Tools sends out the HOLD jack When set to the TRACK position Noise Tools samples the SAMPLE IN voltage at the falling edge of each pulse and holds that sampled voltage only for as long as the pulse remains low When the pulse is high the SAMPLE IN voltage transmits through to the output unaffected Track hold pro...

Page 10: ... less high frequency energy than white noise and thus sounds darker Pink noise contains equal power per octave which means the 55Hz wide range of frequencies in the octave between A1 and A2 contains the same amount of energy as the 880Hz range of frequencies in the octave between A5 and A6 This has the effect of giving more sonic weight to lower frequencies resulting in a deeper thicker sounding n...

Page 11: ...LE IN jack and connect the HOLD out to an oscillator s pitch input you ll hear a repeating arpeggiated sequence rather than the random stream of notes you d hear if you sampled noise Another interesting way to use the SAMPLE IN feature is to feed it an audio signal such as the output of an oscillator then adjust the clock rate to get varying bit crush effects from the HOLD output F HOLD Outputs th...

Page 12: ...Noise Tools 1U Manual Technical Specifications Width 22 hp Maximum Depth 25 mm Current Draw 20 mA 12V 15 mA 12V Page 11 ...

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