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.
Public beta for new AU
I've been doing some experimenting with a couple of UI things for some things I want to build in a bit and to make my AU's work better with macOS. So, I pulled out one of my old OS X applications to test things out on. Well, after I added a few more features to it, I thought it would be worth releasing. So, I spent the last couple of days fighting with the App Store and the beta is ready now if anyone wants to play with it.
Here's the link to Test Flight.
I'm afraid this one requires iOS 14. I needed to add some features that require 14.3.
The original AU was creatively called xTrem, so I kept the name. It's a stereo only effect. The two channels are independent and the LFO's are FM based. Part of the reason I wanted to do this one is that it needs the FM LFO's and I added a feature to enable detents on the controls so that hitting values that work in an FM setting is easier than trying to dial in an integer value with touch controlled slider. Most of the other new things in this are things to enable better use of mouse and trackpad on iOS and macOS with the AU. I've also moved to using Swift for almost everything that isn't DSP, so this beta is a first test of all of the code too.
My original xTrem was a straight forward stereo trem. In this one I added a second tremolo path based on an emulation of a low-pass gate. I think this adds some pretty cool flavor to a trem. That's the main reason I decided to release this one.