Novation Launchkey 25 MK4

LED feedback is not modeled for this one yet, so OAV does not light its LEDs. Every control still plays and sends its message.

Notes on single controls

• pitch Pitch wheel: Novation says it sends pitch bend messages; the channel is not printed — it follows the Keys Channel (default 1), assumed.
• mod Default CC 1 per the Launchkey MK4 Components Guide (Mod Wheel/Strip tab: "default is CC 1"; editable in Components). Its MIDI channel is not printed — the Keys Channel (default 1) is assumed.
• k1 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k2 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k3 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k4 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k5 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k6 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k7 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• k8 The power-on Encoder mode is Custom 1 (Settings → Power On Modes), but Novation prints no default CC for it — the values are set in Components. CC 21–28 on channel 1 is a placeholder: CC 21–28 are the encoders' DAW-mode numbers (channel 16) in the Programmer's Reference. Check the number and channel in Components, or use 學習. Absolute vs relative is also a Components option (relative not assumed).
• sustain Sustain pedal jack: default CC 64 per the Launchkey MK4 Components Guide (Pedal tab: "default is CC 64"; editable). Channel is not printed — the Keys Channel (default 1) is assumed.

1. Embed it with one line

   No import map, no build step. Change layout, add hardware="ask" for a Connect button.

   htmlCopy

   <script type="module" src="https://openaudiovisual.com/packages/midi/element.js"></script>
   <oav-controller profile="novation-launchkey-25-mk4" readout></oav-controller>

2. Or as an iframe

   For places that only take an iframe. Every event arrives as a postMessage.

   htmlCopy

   <iframe src="https://openaudiovisual.com/embed/controller/?profile=novation-launchkey-25-mk4&readout"
           width="720" height="413" style="border:0;max-width:100%" allow="midi"
           title="Novation Launchkey 25 MK4"></iframe>
   <script>
     // every control the visitor plays arrives here
     addEventListener('message', (e) => {
       if (e.data?.source !== 'openav' || e.data.type !== 'control') return;
       console.log(e.data.detail.signal, e.data.detail.value);
     });
   </script>

3. Send it to Ableton, TouchDesigner or Resolume

   What you play on screen leaves as real MIDI on the IAC bus (macOS) or a loopMIDI port (Windows). The steps are on the catalog page.

   htmlCopy

   <!-- what you play on this controller → the IAC bus (macOS) → Ableton, TouchDesigner, Resolume -->
   <script type="module" src="https://openaudiovisual.com/packages/midi/element.js"></script>
   <oav-controller profile="novation-launchkey-25-mk4" midi-out="IAC" readout></oav-controller>
   <!-- Windows: midi-out="loopMIDI" · let the visitor pick a port: midi-out="ask" -->

   macOS: Audio MIDI Setup → MIDI Studio → IAC Driver → “Device is online”. Windows 11: the built-in Windows MIDI Services have a loopback (not tested by us); older Windows: install loopMIDI, add a port and use midi-out="loopMIDI".

document.head.prepend(Object.assign(document.createElement('script'), { src: 'https://openaudiovisual.com/p5/oav-p5.js?profile=novation-launchkey-25-mk4' }));

function draw() {
  background(knob1 * 255);   // 1 · CC 21
  circle(width / 2, height / 2, 50 + knob2 * 300);   // 2 · CC 22
}

function padPressed(n, velocity) {      // n = 1…16, as in the table
  circle(random(width), random(height), velocity * 100);
}

function notePressed(note, velocity) {   // a key goes down
  circle(random(width), random(height), velocity * 100);
}

• Novation Launchkey 37 MK4Novation · 16 pads · 37 keys · 8 knobs · 1 button · 2 wheels
• Novation Launchkey Mini MK3Novation · 16 pads · 25 keys · 8 knobs · 2 touch strips
• Novation Launchpad Mini MK3Novation · 64 pads · 16 buttons
• Novation Launchpad Pro MK3Novation · 64 pads · 41 buttons
• Novation Launch Control XL (MK2)Novation · 24 knobs · 8 faders · 24 buttons
• Novation Launch Control XL 3Novation · 24 encoders · 8 faders · 16 buttons

Compare Novation Launchkey 25 MK4 with the rest, by keys, pads, knobs, faders and LED feedback →

• Ask for a controller ↗
• How to add one ↗

• Report it on GitHub ↗
• The profile file on GitHub ↗
• Raw JSON