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.
Interesting old article entitled "Of Filters & Phase Relationships" from 1999
This article is an examination of analog synth filters.
My understanding of it, is that old analog synth filters introduce a degree of phase shift into the waveform passing through the filter, and that degree of phase shift changes in respect to the frequency bands of the waveform passing through the filter.
The result is a filter that is in a continuous state of actively phase shifting frequency bands in the entire signal, at different degrees of shift, relative to the frequency bands passing through it.
As one might imagine, this could result in a very complex frequency spectrum based interactivity between differing phase relationships.
This may help explain why the old analog synth filters provided a "warmer" filter response compared to the modern digital variety.
Of course, now I need to search for ways to emulate this type of filter response using drambo and/or other iPadOS tools.
What's needed is a way of dividing up and identifying the bandwidths within an audio signal, then applying degrees of phase shift to only selected frequency bands. The more control over the phase shift response, the better.
Anyone have any ideas?
The Drambo Delay module can introduce phase shift. But how to achieve active "relative" band following frequency phase shift, that's not just a frequency based array of "stepped" static phase settings?
I think the ideal would be continuously variable phasing degrees spread throughout the entire filtered signal spectrum.
How does one do that?