Audiobus: Use your music apps together.

What is Audiobus?Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.

Download on the App Store

Audiobus is the app that makes the rest of your setup better.

Kai Aras FD-1 Performance Issues

I’m running into a performance issue with Kai Aras FD-1 filter delay.

When I load it I AUM, every few seconds I am getting large CPU Spikes of 90% or more, often exceeding 100% and causing dropouts.

My set only has 1 track, with SB Factory and FD-1 in an effect slot, on an iPad Pro 2017. The AUM transport is running. And I am playing a few notes.

If I remove Fd-1 CPU usage returns to normal.

I wonder if anyone else is encountering this issue?

I’ve contacted the developer about it.



  • edited November 2019

    Not here. I have some problem with the automation settings in AUM, but not cpu spikes.

  • Hey guys

    I’m am using FD-1 in AUM. I have experienced that that FD-1 causes the a tha audio to chrash when i load the plug-in as an effect on a channel that is routed to a send Bus.
    I hear a small click and the audio from the masteroutput is gone. I still get a read out on the other channels though. But no sound output. In order to get the sound back I have to reaload the session. However sometimes it is enough to remove the send-bus and sen the audio directly to my phones.

    I have seen this happen different AUM sessions.

    Has anyone experienced something like this? It is a super cool plug-in and it is a shame if I can’t us it due to this issue.

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