How to Connect a Hardware Synth to Your DAW

To connect a hardware synth to your DAW, you run its audio output into an audio interface so the computer can hear it, and you connect MIDI so the two can talk about notes, clock and control. Audio comes in through your interface inputs; MIDI travels over USB or a 5-pin DIN connection. Get those two paths right and your synth behaves like any other track in your session.

This guide walks through both halves — audio and MIDI — plus the routing and latency settings that trip people up. It assumes a typical bedroom setup with an audio interface, a DAW like Ableton Live, Logic or Reaper, and a synth such as a Moog Mother-32, Korg Minilogue or Arturia MicroFreak.

Step 1: Get the audio into your DAW

A hardware synth produces a real analog (or digital) audio signal, so it needs to reach your computer through an audio interface for synths. Run a cable from the synth’s main output to a line-level input on your interface. Most synths output on quarter-inch (TS or TRS) jacks; smaller units like Volcas use a 3.5mm output, so you may need an adapter or a 3.5mm-to-quarter-inch cable.

• Mono synth, one output: use a single cable into one interface input.
• Stereo synth (Wavestate, Hydrasynth, Prophet): use two cables into a pair of inputs and record a stereo track.
• Set the input to line level, not instrument/Hi-Z, and keep the synth’s volume sensible so the input meter peaks well below clipping.

If you are not sure how your interface inputs are wired, our walkthrough on how to set up an audio interface covers gain, monitoring and driver setup.

Step 2: Connect MIDI so the DAW can play the synth

MIDI lets your DAW send notes, automation and clock to the synth, and lets a keyboard play it. You have two common options:

• USB-MIDI: many modern synths (MicroFreak, Minilogue, Digitone) connect straight to the computer with a single USB cable that carries MIDI both ways.
• 5-pin DIN MIDI: older or output-only synths use traditional MIDI ports. You then need a MIDI interface, or an interface with built-in MIDI I/O, to bridge DIN to USB.

In your DAW, enable the synth as a MIDI input and output device, then create a MIDI track, set its output to the synth and arm it. Playing your controller should now trigger the synth. For background on the protocol itself, see what CV and gate are — useful if your synth is analog and you later want tighter, voltage-based control.

Step 3: Choose your recording approach

There are two ways to capture a hardware synth, and they suit different workflows:

1. Record audio in real time. Sequence the part with MIDI (or play it live), then record the synth’s audio output to an audio track. This is the standard method and what most people mean by recording a synth.
2. Keep it as MIDI and re-record later. Save the performance as MIDI so you can tweak notes, then commit to audio once the part is final.

Our dedicated guide on how to record a hardware synth covers levels, gain staging and printing the final take.

Step 4: Tame latency and timing

Because audio leaves the computer, hits the synth and comes back, you can get a delay. Two things help:

• Direct monitoring: listen to the synth through your interface’s direct monitor path while tracking, so you hear it with no round-trip lag.
• Latency compensation: if you record the synth’s audio while the DAW drives it over MIDI, the recorded audio may land slightly late. Many DAWs offer an external-instrument or track-delay setting to nudge it back into the grid.

If clicks or dropouts appear, raise your buffer size when mixing and lower it when playing live. Our explainer on audio latency goes deeper.

Common connection mistakes to avoid

• Plugging a synth into a mic input — line-level synths overload mic preamps. Use a line input.
• Forgetting the audio path — MIDI alone makes no sound through the computer; you still need the audio cable.
• Mismatched MIDI channels — set the DAW track and the synth to the same channel, or to Omni while you troubleshoot.

Frequently asked questions

Do I need both audio and MIDI cables?

For full integration, yes. The audio cable carries the actual sound into your DAW, and MIDI lets the DAW sequence and control the synth. You can record audio without MIDI if you play the synth by hand, but you can’t hear MIDI alone.

Can I connect a synth with only a USB cable?

USB usually carries MIDI only, not audio, on hardware synths. A few units act as USB audio devices, but most still need their analog output routed into an audio interface to record sound.

Why is my recorded synth track out of time?

That is round-trip latency. Use direct monitoring while tracking, and apply your DAW’s latency compensation or a small negative track delay so the printed audio lines up with the grid.