Toggle settings and navigate the parameters to configure Hapax according to your needs.
Select the SAVE icon to store settings onto the SD card : they will be loaded at startup. Settings are global and are used by both projects proA and proB.
Sync input
CLOCK SOURCE INTERNAL Hapax will use its internal clock (to be the synchronisation leader). MIDI IN A Hapax will follow the midi A clock input. MIDI IN B Hapax will follow the midi B clock input. USB HOST Hapax will follow the usb host clock input. USB DEVICE Hapax will follow the usb device clock input. CV IN 1 Hapax will follow an analog gate input, if connected on the CV input 1. CV IN 2 Hapax will follows an analog gate input, if connected on the CV input 2. MIDI AUTO Hapax will automatically follow an incoming clock (MIDI and USB). If no input clocks are detected, Hapax will use its internal clock.
Tip When using CV IN 1 or CV IN 2, Hapax is synchronized in a "step advance" trigger style (old school analog clocking). The setting CV CLOCK DIV lets you choose how much ppqn the sequencer will run for one input trig. Please note that you also need to set the tempo thanks to the BPM popup, allowing a great flexibility. For example, if you want to sync Hapax with an external eurorack sequencer analog clock, running at 140bpm and sending a gate each 1/16, you need to set CV CLOCK DIV = 1/16 (4ppqn) and set Hapax tempo to 140 BPM.
MIDI START/STOP -- Start and stop Hapax only with and pads. ON (CLOCK INPUT) Hapax receives & reacts to midi in start/stop messages (on same input as CLOCK SOURCE, that must be set to an external source). ON (ANY INPUT) Hapax receives & reacts to midi in start/stop messages. All inputs can receive these messages (even when CLOCK SOURCE is set to INTERNAL).
CV RESET CV IN 1 Use an analog gate on CV input 1 to reset the playback position. CV IN 2 Use an analog gate on CV input 2 to reset the playback position. AUTO If CLOCK SOURCE = CV IN, Hapax will automatically reset its player when not receiving an incoming CV clock for more than 2 seconds. This setting will also allow the player to automatically start the player when an incoming clock is received.
CV PLAY ENABLE CV IN 1 Use an analog gate on CV input 1 to start the playback. A high state will run the sequencer, a low state will stop & reset the playback. CV IN 2 Use an analog gate on CV input 2 to start the playback. A high state will run the sequencer, a low state will stop & reset the playback.
CV CLOCK DIV 1/96 = 24 PPQN 1/64 = 16 PPQN 1/48 = 12 PPQN 1/32 = 8 PPQN 1/16 = 4 PPQN 1/8 = 2 PPQN 1/4 = 1 PPQN When the above option CLOCK SOURCE = CV, sets the expected speed of the incoming clock. Note This parameter is displaying 2 different units, meaning the same thing. The first one is the time division (e.g. 1/16) : it's the expected rate of the clock. The second one is the expected number of pulses per quarter note (e.g. 4 PPQN).
Sync output
MIDI A, B, C, D, USB DEVICE, USB HOST -- Do not transmit clock, start and stop messages to the selected midi output. CLOCK+TRANSPORT Send midi clock + start/stop to the selected midi output. CLOCK Send only midi clock to the selected midi output. TRANSPORT Send only midi start/stop to the selected midi output.
CLOCK ON STOP -- Send midi clocks only when Hapax is playing. SEND Always send midi clocks, even when hapax is stopped. SEND (ONLY MIDI) Always send midi clocks on midi ports, even when hapax is stopped. SEND (ONLY GATE) Always send midi clocks on gate outputs, even when hapax is stopped.
DIN SYNC -- 1/96 ... 1/1 Set the DIN-sync analog clock pulse resolution (also known as Sync24, enable some vintage gear synchronization, like the TR-808) available on midi output C port. When a clock value is set, this DIN-sync port also send the start/stop message. Tip When using Hapax DIN-sync to synchronize some units (TR-909, TR-808, ...) it may be preferable to use a special DIN-5 connector with pins 4 and 5 disconnected: these pins are used to transport midi data and may cause sync issues with some machines.
GATE RUN -- GATE 1 (RUN = HIGH) ... GATE 4 (RUN = HIGH) GATE 1 (RUN = LOW) ... GATE 4 (RUN = LOW) When RUN = HIGH, selected gate output will be set to high level when Hapax is playing and low level when Hapax is stopped. When RUN = LOW, selected gate output will be set to low level when Hapax is playing and high level when Hapax is stopped.
TRIG RESET -- GATE 1 (ON START) ... GATE 4 (ON START) GATE 1 (ON STOP) ... GATE 4 (ON STOP) Selected gate output will trig (for a few ms) a high level signal, either at the start of playback, or at the end (on stop).
GATE CLOCK -- GATE 1 ... GATE 4 Selected gate will output a synchronisation clock, with a 50% duty cycle.
GATE CLOCK DIV 1/96 1/64 1/48 1/32 1/16 1/8 1/4 1/2 1/1 When the above option GATE CLOCK is enabled: sets the speed/resolution of the clock.
Misc
INFO Displays system and performance data, great to troubleshoot potential bottlenecks, including: • Current hapaxOS version • Real–time CPU usage • RAM Monitor (memory usage of Notes+Drums memory space, MPE memory space and Automation memory space) • MIDI Bandwidth Monitor (to visualize outgoing MIDI load)
Note The MIDI bandwidth monitor displays four vu–meters (one for each of Hapax’s MIDI outputs). Each meter shows the real-time amount of MIDI data being transmitted through its respective port. Each vu–meter pixel represents one millisecond of transmission time (the time it takes for a MIDI message to be sent from the Hapax output to the receiving device). This tool is especially useful for identifying overloaded outputs that may cause latency or dropped messages, balancing MIDI traffic across multiple outputs for optimal performance and troubleshooting complex setups with high automation or dense note data. Thanks to the high bandwidth of the USB outputs, they are not affected by these limitations and therefore do not require monitoring.
PALETTE Enter the color palette mode, to customize RGB leds colors thanks to encoders ①...⑧ (read section color palette).
SCREEN Access to screen hardware settings. These settings have been configured to reduce flickering when filming HAPAX. If you don't plan on filming, you should keep the default settings.
METRONOME MIDI If metronome enabled in the rec settings, the metronome will be send thanks to MIDI notes messages. CV OUT 1/2/3/4 If metronome enabled in the rec settings, the selected CV output will output an audio sound that you can directly plug to your mixing console or portable speaker.
METRONOME MIDI ACTIVE TRACK MIDI A/B/C/D CH01..CH16 USB HOST/DEVICE CH01..CH16 Only applicable if the previous METRONOME setting is set to MIDI. Choose which MIDI output+channel should be used to send the metronome note messages.
METRONOME AUDIO VOLUME 10% VOLUME 100% Only applicable if the previous METRONOME setting is set to AUDIO. Choose the metronome audio output level (100% = 10Vpp = eurorack level, 30% = 3Vpp = professional line level).
METRONOME BAR C0 ... C6 ... G10 MIDI note to play on the first beat of the bar.
METRONOME BEAT C0 ... C6 ... G10 MIDI note to play on other beats of the bar.
TRANSPOSE ROOT C0 ... C6 ... G10 Set the “center note” defining TRSP = +0 (no transposition). Works only is pTRSP=TRSP is enabled on your project.
pTRSP SYNC INSTANT BEAT 1 BAR ... 4 BARS Choose the time interval on which transposition should be synced to. Works for pTRSP=TRSP (classic transpose) and pTRSP=CHRD (match chord).
RESTART SYNC INSTANT BEAT 1 BAR ... 4 BARS Choose the time interval on which pressing play (when Hapax is already running) should restart the player. Useful to synchronize a restart to a beat, a bar, ... when live performing.
PATTERN TRIG FREE RESTART New! Sets the default value of a pattern trig mode.
LED BRIGHTNESS 0% ... 100% Adjust leds brightness level to best match your environment.
SCREEN CONTRAST 0% ... 100% Adjust screen contrast to best match your environment.
HOLD TIME FASTER FAST NORMAL SLOW EXTRA SLOW Change the time for a button press to be registered as a Hold action.
MUTE GROUP OFF Instant track mute. ON When muting tracks, enables group selection: all tracks mute states will be toggled after the mute pad release.
SPLIT BARS OFF In step mode, a new bar is a continuation of the previous one. ON In step mode, a new bar is always on a new page (useful for odd time signatures). Note This is an advanced setting, default value ON is probably what you need.
NOTE CHASING OFF When unmuting a track, notes currently played by the playhead are not retrigged. ON Retrig notes that should be playing when unmuting a track.
UNISON Unison = the simultaneous playing of multiple identical notes. OFF When multiple notes of the same pitch are played, only one can be active at a time. If a new note-on of the same pitch is received, a note-off for the previous instance is sent immediately before the new note-on (retrigger-style behavior). ON When two or more notes of the same pitch are played simultaneously on a pattern, they are layered. This allows you to create "chords" consisting of repeated notes. For example, if the STEP mode is playing a C5 and you press another C5 in LIVE mode, both note-on messages are sent. Their corresponding note-off messages will be sent simultaneously, but only when the last active instance of that note is released. Some synthesizers are supporting unison to create a fuller sound. It’s also useful within Hapax, as internal MIDI effects are unison-compatible. For instance, the Arpeggiator can process a chord containing multiple instances of the same note (e.g., two C5, three D5, and one E5), treating each one individually for more dynamic patterns.
SELECT +/- WARP ROTATE Determines the behaviour of the + and - buttons during a step mode multiple-events selection.
BACKGROUND RGB LIVE 0% ... 100% Adds a colored preview of notes in the background of the 128-pad Matrix (when in live mode SCALE).
BACKGROUND RGB STEP 0% ... 100% Adds a colored preview of notes in the background of the piano-roll. (when in step mode POLY and MPE).
MIDI MONITOR ALL MESSAGES ONLY NOTES ONLY CC ONLY PITCHBEND ONLY PRESSURE ONLY PC ONLY REAL TIME Configure the MIDI MONITOR mode, in order to log all messages, or only the selected midi events.
STEP NOTE PREVIEW OFF ON When enabled, outputs a short note upon creating a new event in step mode, or modifying the pitch/velocity of an existing event.
APPLY SUSTAIN OFF ON When enabled, incoming sustain pedal messages (MIDI CC 64) will directly affect the note lengths. When the sustain pedal CC is high (pedal is pressed), all note-off events are held. Note When this option is turned on, all inbound MIDI CC 64 messages will be consumed, and not be forwarded down the effects chain. Note This does not apply to outbound MIDI CC 64 messages. Click here for more information.
FOLLOW PLAYHEAD OFF ON While PLAY is active and this setting is enabled, the piano-roll automatically jumps to display the currently played page. Disable this option if you prefer to keep a manual navigation between pages, only using or .
AUTOLOAD OFF ON When enabled, the last saved project will be automatically loaded when the unit is powered on.
SCREENSAVER TIME NEVER 1MIN 5MIN 10MIN 30MIN 1HOUR Determines the time to wait before starting the screensaver when no action is performed on the unit.
DEBUG ENABLED OFF ON Enables debugging shortcuts for extra error messages. Tip When enabled, Press 2ND + pattern to save in the SD card a screenshot of the 2 OLED displays.
CV/Gate + pedal
CV IN RANGE -5.0v > +5.0v 0.0v > +5.0v -1.0v > +1.0v Set the input voltage range Hapax can process, for the two CV inputs.
CV OUT RANGE -5.0v > +5.0v 0.0v > +5.0v Set the voltage range Hapax can output, for the 4 CV outputs.
CV OUT TYPE 1V/OCTAVE 1.2V/OCTAVE HZ/V Pitch information is most often expressed as a control voltage using the V/OCTAVE standard. It is used by Eurorack modules and most other modular systems. However some synthesizers require the use of other standards to respond correctly. The 1.2V/OCTAVE standard is mainly used by Buchla-compatible systems, while the HZ/V standard is an older standard used by the Korg MS series and the Yamaha CS series, among others.
V/OCTAVE
HZ/V
C0
- 5 V
+ 0.0312 V
C1
- 4 V
+ 0.0625 V
C2
- 3 V
+ 0.125 V
C3
- 2 V
+ 0.25 V
C4
- 1 V
+ 0.5 V
C5
+ 0 V
+ 1 V
C6
+ 1 V
+ 2 V
C7
+ 2 V
+ 4 V
Eb7
+ 2.25 V
+ 4.75 V
C8
+ 3 V
out of range
C9
+ 4 V
out of range
C10
+ 5 V
out of range
Comparison of the available notes in the Volt-per-octave standard, and the Hertz-per-Volt standard
GATE POLARITY HIGH=5V HIGH=0V Set the gate ON level (5V or 0V).
GATE OUT RETRIG ON OFF When a new note is played while a note was already playing, determines whether the gate is retrigged or not.
PEDAL (TIP) -- REC PLAY/STOP PLAY/RESTART FILL UNDO REDO TAKE SNAPSHOT TOGGLE SNAPSHOT TRACK MUTE TRACK SOLO TRACK TOGGLE PREVIOUS SECTION NEXT SECTION PREVIOUS PATTERN NEXT PATTERN TAP BPM STEP-REC REST STEP-REC TIE Assign a command to execute when using a footswitch. Pedal hot is the tip channel of the cable, available on mono (single) and stereo (dual) pedals.
PEDAL (RING) -- REC PLAY/STOP PLAY/RESTART FILL UNDO REDO TAKE SNAPSHOT TOGGLE SNAPSHOT TRACK MUTE TRACK SOLO TRACK TOGGLE PREVIOUS SECTION NEXT SECTION PREVIOUS PATTERN NEXT PATTERN TAP BPM STEP-REC REST STEP-REC TIE Assign a command to execute when using a footswitch. Pedal cold is the ring channel of the cable, available on stereo (dual) pedals.
PEDAL POLARITY NORMALLY OPEN NORMALLY CLOSED Change pedal polarity helps support a wider range of footswitch types, especially for sustain pedals which may be normally open (NO) or normally closed (NC).
Midi input
NOTES -- Accepts all incoming midi notes IGNORE Ignores all incoming midi notes REC ONLY Ignores but allow record (avoid midi echo)
CC MESSAGES -- Accepts all incoming midi CC IGNORE Ignores all incoming midi CC REC ONLY Ignores but allow record (avoid midi echo)
PITCHBEND -- Accepts all incoming midi pitchbend IGNORE Ignores all incoming midi pitchbend REC ONLY Ignores but allow record (avoid midi echo)
PRESSURE -- Accepts all incoming midi aftertouch IGNORE Ignores all incoming midi aftertouch REC ONLY Ignores but allow record (avoid midi echo)
PROGRAM CHANGE -- Accepts all incoming midi PC IGNORE Ignores all incoming midi PC
ACTIVE TRACK PORT -- MIDI IN A MIDI IN B MIDI IN DEVICE MIDI IN HOST Routes incoming MIDI messages to the currently selected (active) track, regardless of that track’s input settings. This is particularly useful when using a "global" MIDI controller intended to always control the selected track.
ACTIVE TRACK CHANNEL 01 ... 16 When ACTIVE TRACK PORT is enabled, this setting defines the MIDI channel used to send messages to the active track.
Tip When the REC ONLY mode is enabled, MIDI note messages from input ports are ignored during playback. This helps prevent MIDI feedback (also known as MIDI echo). For example, if you connect a synthesizer to both a Hapax input and output, the synthesizer can still play its internal sounds when you use its keyboard, but Hapax won't echo the same notes back to the synth during live play. However, once you record those notes, Hapax will play them back normally.
Note Events coming from the ACTIVE TRACK PORT are not ignored by REC ONLY , since this feature is designed for use with a "global" MIDI controller, not a synthesizer with its own keyboard.
Midi thru
When Midi thru is enabled, between an input and an output it forwards instantly any Midi event (including notes, Cc...) directly to the selected output.
MIDI IN > MIDI OUT A/B/C/D ON Configure MIDI thru from the MIDI inputs to any selected MIDI output.
MIDI IN > USB DEVICE/HOST ON Configure MIDI thru from the MIDI inputs to any selected MIDI output.
USB DEVICE > MIDI A/B/C/D ON Configure MIDI thru from the USB device input to any selected midi output.
USB DEVICE > USB HOST ON Configure MIDI thru from the USB device input to USB host output.
USB HOST > MIDI A/B/C/D ON Configure MIDI thru from the USB host input to any selected midi output.
USB HOST > USB DEVICE ON Configure MIDI thru from the USB host input to USB device output.
Compensation
Some hardware machines (MIDI or USB) and some software plug-ins may introduce latency. Hapax can compensate for these delays with the latency compensation, so all your notes and automation are dispatched and arrive with the best possible timing. Even the clocks/transports messages can be compensated separately, so your external gear will perfectly follow Hapax synchronization.
This latency compensation values are set in ms (milliseconds), and it can be negative value (midi will be sent early) or positive value (midi will be sent late). They have to be globally configured per outputs (MIDI A, MIDI B, ...) and per channels (CH01 .. CH16), as each output/channel corresponds to one of your instruments.
For example, if you are using a synthesizer introducing latency in your song (you are hearing a small delay when playing with it), set a negative compensation value on its channel/output, so its midi events will be sent earlier than the other.
These compensation values are saved with the settings and will be loaded at startup, so every project will use the same settings.
MIDI OUT A (CH01, CH02, ...) -500MS ... -1MS 0MS +1MS ... +500MS Compensation per channel, for notes and automation.
MIDI OUT A CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
MIDI OUT B (CH01, CH02, ...) -500MS ... -1MS 0MS 1MS ... +500MS Compensation per channel, for notes and automation.
MIDI OUT B CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
MIDI OUT C (CH01, CH02, ...) -500MS ... -1MS 0MS 1MS ... +500MS Compensation per channel, for notes and automation.
MIDI OUT C CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
MIDI OUT D (CH01, CH02, ...) -500MS ... -1MS 0MS 1MS ... +500MS Compensation per channel, for notes and automation.
MIDI OUT D CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
USB DEVICE (CH01, CH02, ...) -500MS ... -1MS 0MS 1MS ... +500MS Compensation per channel, for notes and automation.
USB DEVICE CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
USB HOST (CH01, CH02, ...) -500MS ... -1MS 0MS 1MS ... +500MS Compensation per channel, for notes and automation.
USB HOST CLOCK -500MS ... -1MS 0MS +1MS ... +500MS Compensation for real-time messages (not specific to a MIDI channel).
CV/GATE OUT (1...4) -500MS ... -1MS 0MS 1MS ... +500MS Compensation for each CV/GATE output pairs, for notes and automation.
Note Midi events can't be delayed in the past, so when using negative values, the lowest negative value will make the selected channel/output as the 'not delayed' channel/output. But the other channels/outputs will be delayed. If OUTA CH01 = -10ms, OUTA CH02 = -4ms, OUTA CH03 = 0ms, and OUTA CH04 = +10ms : OUTA CH01 events will not be delayed, OUTA CH02 will be delayed by 6ms, OUTA CH03 by 10ms, and OUTA CH04 by 20ms.
Tip In the TRACK HOLD menu, you can see the compensation value of the selected track when the combination of output/channel match the setting (under CHANNEL).
Color Palette
Under Palette you will be able to finetune custom HSL led colors. This is very usefull if you already have strong synesthetic habits.
Toggle settings button and enter "Settings > MISC > Palette".
You will see the colour chart on the matrix pads (a HSL color is made of 3 elements: hue, saturation and lightness).
Palette For customizing colors of Hapax RGB leds. This parameter allows you to scroll among all assignables palettes with encoder ①, and then scroll between the type of color you want to edit with encoder ⑤ :
NOTES Each of the 12 notes, from C to B.
MISC Miscellaneous colors: • SELECTION : selections on the 128 pad-matrix. • MUTED : muted notes. • VOID : automation events of "void lane" (no destination set). • DISABLED : disabled areas (loop points, out of pScale).
PATTERNS RGB pattern colors from 1 to 8, used when holding a pattern and setting a custom color.
MIXMUTE Mixmute page colors: • MUTE : mute active. • !MUTE : unmuted inactive. • SOLO : solo active. • !SOLO : solo inactive. • TOGGLE : toggle active. • !TOGGLE : toggle inactive. • REC : record active. • !REC : record inactive.
HUE 1% ... 100% Rotate encoder ③ to select the base color of the selected palette item.
SATURATION 1% ... 100% Rotate encoder ④ to select the saturation of the selected palette item.
LIGHTNESS 1% ... 100% Rotate encoder ⑦ to select the brightness (distance from black) of the selected palette item.
Midi Monitor
Hold 2ND + Toggle live to display the MIDI MONITOR, showing midi in events (left screen) and midi out events (right screen).
How to calibrate the 4 CV outputs
You can fine tune Hapax's 4 analog outputs in order to get a very precise note pitch:
Hold encoder ⑦ encoder while powering on Hapax:CALIBRATE VOICE 1, ADJUST -4V must appears on the screen.
With the help of an accurate voltmeter and a patch cable, measure the CV1 output and rotate the menu encoder to adjust the output voltage (-4.00V).
Click the menu encoder to select and calibrate the next voltage (-3.00V). Repeat this operation for each CV values (-2.00V, -1.00V, 0.00V, 1.00V, 2.00V, 3.00V, 4.00V).
Once you calibrated all the voltages for CV1 output, the next CV output (CV2, CV3, and finally CV4) will be automatically selected. Ajust each voltages of this selected output, always with the help of your voltmeter and by rotating the menu encoder.
At the very end of this procedure, this calibration will be saved in the SD card. Then you can reboot Hapax and start playing with your CV outputs!
Tip Hapax outputs -5.00V for a C0 note (midi note 0), -4.00V for a C1 note (midi note 12), -3.00V for a C2 note (midi note 24), ..., 0.00V for a C5 note (midi note 60), ..., 5.00V for a C10 note (midi note 120).
Audio synchronization from a DAW : enable sample-rate precision
If you need a perfect synchronization of Hapax to your computer DAW, it can be done thanks to an incoming audio signal.
Indeed, DAWs often generate jitters and delays on the computer USB midi output, due to the weak real-time architecture of computers OS.
For rock solid synchronization, it's advised to use a dedicated audio output of your computer (sending a clock output signal), if possible using a soundcard with multiple audio ports. Hapax will receive this accurate analog sync signal on one of its CV input, and will relies on it to synchronize its tempo and play/stop features.
This way, you don't have to use a "audio sync to midi" device to connect Hapax with your DAW.
How to enable audio synchronization : • On your DAW, create a track playing (in a loop) this 1-bar 120BPM audio file (warp it so it will follow your DAW BPM) • ... or use a synchronization plugin to gererate a sync signal, like the Ableton CV Tools "CV Clock Out" • Output this audio "clock" signal on a separated port (for example by using a soundcard) • Make sure the volume of this output is set to maximum level • Use an audio cable to connect the computer audio output to Hapax CV input 1 • Configure Hapax SYNC IN > CLOCK SOURCE = CV IN 1 • Configure Hapax SYNC IN > CV RESET = AUTO (so Hapax will automatically play when receiving a signal, and will stop no signal is detected) • Configure Hapax SYNC IN > CV CLOCK DIV (1/64 when using the audio file) • Set the same BPM for Hapax and your DAW • Start playing your DAW : Hapax will receive the sync signal and will immediately start to play, with zero jitter.
Note do not use any usb midi sync between your DAW and Hapax.
Tip if your computer audio output does not deliver a volume high enough to trig the Hapax input clock detection, you can configure Hapax CV/GATE > CV IN RANGE = -1V > +1V
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