background image

goes high on the TRIG/GATE input jack (1) and afterwards will hold that momentary 
voltage after the trigger / gate goes low (opposite to 

T&H

). 

 

SLEW / ENVELOPE FOLLOWER 

Feed external CV or audio source to the 1v/oct input and ‘slew’ them by adjusting 
the 

RISE 

(5) and

 FALL 

(7) knobs. Is important to use bipolar ­5…+5V output to 

maintain the proper unity to input signal scale. It is recommended to keep the 

SHAPE

 trimmer (4) at 12:00, but experiment by changing its position to find the 

optimal slew sweet spot. CV sources will be slewed, while audio sources will be 
used to extract an envelope follower from audio’s amplitude. 
 

 Note: while 1/oct input tracks 1 volt­per­octave internal oscillator for more than 3­

4 octaves, using that input for slewing external 1v/oct pitch CV source may worsen 
the precise tracking 

 
 

CREDITS 

ENDORPHIN.ES

®

 – AIRSTREAMER 4 

FIRMWARE VERSION V.1.0 
COLLECTION SPRING/SUMMER 2023 

 

Module idea, hardware design, direction and manual by Andreas Zhukovsky 

Core engine programming by BSVi  

Special thanks to Xavier Galai for additional code and crazy ideas. 

Manual proofreading, beta testing and demo videos by Wisdom Water 

Endorphin.es are made in Barcelona, Spain 

Follow, like, post and tag us at Instagram: @endorphin.es 

 

 

Summary of Contents for Airstreamer 4

Page 1: ...AIRSTREAMER 4 V 1 0 ...

Page 2: ... VISIT US 3 INTRO 4 CONNECTING THE POWER 4 TECHNICAL SPECIFICATIONS 4 INTERFACE 5 FEATURES OVERVIEW 8 SPECIAL OPERATION MODES 8 T H TRACK AND HOLD 8 S H SAMPLE AND HOLD 8 SLEW ENVELOPE FOLLOWER 9 CREDITS 9 COMPLIANCE 10 ...

Page 3: ...ement or repair as decided by us Please contact us via email for a return authorization before sending anything The customer pays shipping costs of sending a module back for servicing Device complies with all EU regulations concerning RoHS lead free manufacturing and WEEE disposal VISIT US https endorphin es https www youtube com Endorphines https www instagram com endorphin es https facebook com ...

Page 4: ...ree power header and sufficient available capacity to power the module Connect the module directly to the power bus board with supplied 10 16 ribbon cable like any other eurorack module Pair of RED BROWN pins on the multicolor ribbon cable corresponds to NEGATIVE 12 VOLTS Make sure to align the power cable with the RED BROWN STRIPE label on the module that corresponds to 12V to the 10 pin connecto...

Page 5: ...INTERFACE ...

Page 6: ...hen a trigger gate goes high on the TRIG GATE INPUT 1 When no trigger gate is present on the TRIG GATE INPUT an envelope follower is extracted from the audio sources fed to the 1V OCT INPUT 2 3 AMP KNOB polarizer attenuverter controlling the level polarity of the envelope oscillator at the outputs or the result of processing external CV audio sources Sums with bipolar VCA IN jack 10 4 EXP LOG TRIM...

Page 7: ...be inverted therefore VCA input will essentially works as a balanced or ring modulation input Additionally to that unipolar 0 5V envelope output under negative voltages will be offseted up by 5V for creating a sidechain envelope 11 ENVELOPE LED with the brightness shows the level activity of the envelope 12 ENVELOPE OUTPUT JACKS two jacks offer separately scaled bipolar 5V 5V and unipolar 0 5V env...

Page 8: ...y handy when using AIRSTREAMER 4 as a modulator oscillator for FM patches Continuously variable shape over both slopes adjusts the curve tonal content of the envelope oscillator without stretching slope s duration in time making the module easier to use in a variety of musical applications SPECIAL OPERATION MODES T H TRACK AND HOLD The following mode is selected by setting the MODE SWITCH 8 to the...

Page 9: ...ll be slewed while audio sources will be used to extract an envelope follower from audio s amplitude Note while 1 oct input tracks 1 volt per octave internal oscillator for more than 3 4 octaves using that input for slewing external 1v oct pitch CV source may worsen the precise tracking CREDITS ENDORPHIN ES AIRSTREAMER 4 FIRMWARE VERSION V 1 0 COLLECTION SPRING SUMMER 2023 Module idea hardware des...

Page 10: ...omply 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 interf...

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