List of Multi-Client Audio & MIDI Drivers (Windows)

There is a known limitation on Windows with many drivers for audio and MIDI hardware: They do not support multi-client operation. This means Synfire and a DAW can not play audio or send/receive MIDI to the same device at the same time. This problem only arises when the DAW and Synfire are run at the same time. It is also not specific to Synfire. On Windows in general, running more than one DAW at a time is a challenge. This problem does not exist on OS X.


One solution is to assign different audio and/or MIDI drivers to the DAW and Synfire respectively. For example, you can assign ASIO to your DAW and Windows Audio or DirectX to Synfire's Audio Engine. Also, if you have two hardware keyboards, you can use one for the DAW and the other for Synfire. Or alternatively plug the keyboard into USB and in addition connect it via MIDI cable to a MIDI interface, which gives you two independent MIDI ports to connect to each program.

Multi-Client Drivers

Some hardware comes with multi-client drivers, completely eliminating the above issues. This Wiki page is for collecting a list of those products. Please add your own hardware or software solutions to this page, if they are working for you (just edit this page).

Thank you!


RME Babyface USB seems fine here with Windows 8.1.

I've done drones with both Reaper and Studio One Pro, and in the process of setting things up, Ive had projects running with a global rack on some tracks and drones on others. I wasn't testing it, but all seemed fine.



-- all RME interfaces share the same drivers, I can confirm my RME UFX works fine in Windows 8.1 Pro 64 bit with Ableton Live.


Focusrite Saffire Pro 14 Audio/MIDI Interface on Windows 7 seems to work fine for me.



Average: 5 (1 vote)
janamdo's picture
Last seen 3 days 22 hours ago

1) Jack Audio on Windows is awesome -- ASIO is more usable now! (multi client asio driver)

2) Asio link pro  (multi client asio driver)

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