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4ms Sampler, User Manual

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Setting up your Sampler 

1. Remove the Sampler from the box and anti-static bag.

2. Connect the larger end of the power cable to a 16-pin Eurorack power header on your power 

supply distribution system, with the red stripe towards the -12V. The other end of the power cable 
is a 10-pin connector which should be connected to the 

Sampler

 so the red stripe on the power 

cable is orientated towards the bottom of the module (the bottom is marked by a white stripe and 
“-12V”). Note: The 

Sampler

 is reverse-polarity protected, but other modules being incorrectly 

connected could damage anything on the power bus.

3.

Backup your microSD card before you first power the Sampler on! 

We recommend you 

perform a full backup of the microSD card by using a computer (use the included SD card adaptor 

if needed). This will be useful if the card ever becomes damaged or you wish to restore the 

Sampler

 to the original factory settings and samples.

4. Securely screw the 

Sampler

 to the rails of your case. Power the system on.

5. When the 

Sampler

 first turns on, it will scan the SD Card for WAV files. The lights will flash purple, 

yellow, and other colors. When the lights stop flashing and just the Bank light is on, the 

Sampler

 is 

ready to play.

Never remove the microSD card when playing or recording! 

Overview 

•

Up to 600 samples loaded at one time (10 samples per bank)

•

Includes a microSD card with over 200 samples

•

Extremely quiet, low noise and low jitter design

•

Firmware can be updated by playing an audio file into the 

Sampler

Playback channel: 

•

Mono or stereo output through 

Out Left

 and 

Out Right

 jacks

•

Play

 button/trigger jack: Tapping the button or receiving a trigger starts/re-starts the sample

•

When 

Length

 is set to “All”, the 

Play

 button starts/stops the sample (set in 

System Settings

 

File, see page 15)

•

Sample

 CV/knob: selects a sample from the bank

•

Pitch

 CV/knob: playback pitch (-9 to +4 octave range)

•

Tracking: +/- 0.4cents over four octave range (C0–C3)

•

Pitch

 jack can be calibrated to an external keyboard or sequencer

•

Start Pos

 CV/knob: position in the sample to begin playback (loop start point)

•

Length

 CV/knob: playback time (loop end point)

•

Length

 knob at max

: entire file is played

•

Length

 knob 50%-99%:

 200ms - 5s of the sample is played (beginning at the Start Position)

•

Length

 knob <50%

: Percussive decay envelope is applied to the playback (attack-only 

envelope if playing Reverse)

•

Length

 <1%

: Tiny grains are played (can be used to sweep through sample file data 

manually)

•

Reverse

 button/jack: toggles forward/backwards

•

Bank

 button/jack: selects channel's bank 

 

Tip: 

Hold 

Bank

 and turn the 

Sample

 and/or 

Length

 knob for fast selection of bank

•

Reverse

+

Start Pos

 button/knob combo allows for setting volume of each channel 

independently.

•

Maximum file size for playback: 4GB per file (6.2 hours per file at 48kHz/16b/stereo)

Page   of 

3

20

Summary of Contents for Sampler

Page 1: ...reo playback channels can play any of 600 samples Recording creates stereo WAV files directly onto microSD Card for immediate use Extremely low noise high fidelity design Plays a variety of WAV files up to 32 bit 96kHz Records at 24 bit or 16 bit 48kHz future firmware will support up to 96kHz Intelligent file system makes loading large sample libraries easy by organizing banks into folders CV and ...

Page 2: ... a folder of WAV files 10 Folders with color names 11 Automatic loading of new moved files 11 Sample List HTML file 11 Example Patches Sequencing the Sampler 12 Granular Scrubbing 12 Clock Sync and Shifting Ping Pong Loops 13 Advanced Features CV Calibration 14 Start up bank 14 Adjustable Fade Time Smoother Looping 15 System Settings File 15 Variable Trigger Delay Latency 17 Color Adjustment Mode ...

Page 3: ...ples loaded at one time 10 samples per bank Includes a microSD card with over 200 samples Extremely quiet low noise and low jitter design Firmware can be updated by playing an audio file into the Sampler Playback channel Mono or stereo output through Out Left and Out Right jacks Play button trigger jack Tapping the button or receiving a trigger starts re starts the sample When Length is set to All...

Page 4: ...tarting with a color name will be loaded into that color bank Example Blue Frooty Loops will load into the Blue bank Sub folders are ignored only folders in the root directory are scanned for WAV files Works best with UHS Speed Class 3 cards with this symbol printed on the card Electrical and Mechanical Specifications 16HP Eurorack format module 0 98 25mm maximum depth 10 pin Eurorack power header...

Page 5: ...g You also can select a bank using the Bank CV jack It accepts voltage from 0V to 5V and there are 60 banks so a new bank is selected every 1 12th of a volt That means you can select banks by playing a CV keyboard or sequencer into this jack each semitone note from C0 to B5 will be a different bank Looping The Sampler is also great for looping samples Go to a sample that s at least a couple second...

Page 6: ... you see how the tempo of the loop does not change That s because with Length under 50 the playback time is constant regardless of Pitch With Length over 50 the audio sample data that s played is constant even though it s stretched or shrunk So if you set Start Pos and Length to capture a particular part of a sample let s say it s a human voice saying the word hello then as long as Length is over ...

Page 7: ...hort After that it wraps back around to solid White As you add samples to your card you can fill up a maximum of 60 banks Since there are 10 colors that means each color can have 0 solid to 5 flashes At 5 flashes the bank button is flashing almost constantly Empty banks will be skipped as you cycle through banks with the Bank button What if you ve filled up your banks with samples and you want to ...

Page 8: ...hannel out of Out Left and the right channel out of Out Right However if you are using a mono signal path in your patch you may want to use Mono Mode In this mode the Sampler mixes the left and right channels together and sends that to both output jacks Note that regardless of Stereo or Mono Mode if you play a mono file both jacks will output the mono sample Toggle Stereo Mono Mode To toggle betwe...

Page 9: ...y doesn t the Sampler just save your sample slot assignment information automatically when you record The reason is that you might have recorded over a slot that you didn t mean to or you might not like any of your takes and decide not to keep them Tutorial 4 Loading Files onto the microSD Card The Sampler has an intelligent and intuitive sample file management system You can do everything in seve...

Page 10: ... that file and will try to find a new file to fill that slot The first place it will look is the original file s folder What this means is that if you don t like a particular sample you can delete the file and replace it with a new file The Sampler won t find the deleted file and it will load the new file instead In complex cases such as when you have banks containing samples spanning multiple fol...

Page 11: ...d or replaced by new files inside existing folders Sample List HTML file After you ve made changes to the microSD card using a computer the next time you boot the Sampler with that card the module will create a file in the root level of the microSD card called __Sample List__ html This is a handy quick reference for seeing what files are in what banks and how long each sample is So if you are ever...

Page 12: ...us clocking the sequencer which starts a sample on the Sampler which fires an End Out when it finishes which advances the sequencer etc The Length control on the Sampler will control the tempo which will vary with each step if the samples are of different lengths Try this patch with the Sequencer CV out into the Sample CV Note if the patch seems to run for a moment and then stop the gate pulse wid...

Page 13: ...mple triangle if you don t have a random source into an attenuator module Attenuate the signal heavily down to about 0 5V max Patch the attenuated random LFO noise into the Length CV jack Make sure the Length knob is turned all the way back down The overtone should now be randomized enough that it disappears Adjust the attenuation and or random speed and or Length knob to suit your taste 9 To chan...

Page 14: ...s will turn green and fade back to normal colors If they turn red then read the note on step 5 and try again If you saw the lights turn green then your calibration has been saved The calibration will persist even after power down Calibrating CV jack offset For the other four CV jacks besides Pitch calibration is not normally necessary However in exceptional circumstances using a noisy power supply...

Page 15: ...esponding to 255ms See the System Settings File section below Percussive envelope time is set by the Length knob and CV not by Fade Time However percussive envelopes will be turned off whenever Fade Time is 0 Keep in mind that when Fade Time is set to 0 playback may click and pop This is not normally a desired setting However turning off envelopes is often preferred when doing Granular patches see...

Page 16: ...k to jump to when powering up The ones digit of the bank number equals color of the bank with 0 White 1 Red 9 Pearl The tens digit of the bank number equals the number of blinks ranging from 0 to 5 Therefore 3 means Yellow no blinks and 41 means Red 4 four blinks STARTUP BANK CHANNEL 2 Not used on Sampler TRIG DELAY Possible values any whole number between 1 and 20 which sets the trigger delay in ...

Page 17: ...e a valid SD Card is inserted 2 Hold down the Play and Reverse buttons and power on 3 When the Play button starts flashing release the buttons 4 Press Play repeatedly until each of the three buttons has turned red green and then blue Then press Play three more times as each button turns white In total you will have pressed Play 13 times 5 At this point Play will be solid green not flashing Press a...

Page 18: ... and Reverse buttons while powering on the Sampler When you see either button blink release the buttons 4 If the Reverse and Play buttons are blinking red press the Play button Play will start blinking slowly twice per second to indicate the module is now ready to receive firmware 5 Begin playing the file Immediately you should see Bank turn on and Play and Reverse start flashing blue white cyan a...

Page 19: ...the microSD card while the Sampler is playing or recording How to prepare a new microSD Card Purchase a UHS Class 3 card see above Format the card as ExFAT preferred or FAT32 acceptable See screenshot right for how to set MacOS standard Disk Utility program Verify all sample files are valid WAV files see file format specifications below Put your WAV files into folders to organize them into banks p...

Page 20: ...5 sec Play Looping Reverse Play Record Play Mode Hold 2 sec Hold and turn Start Pos Reverse Channel Volume Hold one second Play Bank Stereo Mono Play Start Stop Recording Hold 2 seconds Reverse Bank CV Calibration Hold and turn Reverse Length All Fade Time Hold all buttons 3 seconds Reverse Play Bank Save Changes to sample slots and fade time Next Bank Bank Settings Hold while powering on Reverse ...

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