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App idea: virtual audio interface
I've recently stumbled upon several use-cases, where I'd find something like "virtual audio interface" really handy. The point is that, many apps don't support multi-output Audiobus, but many apps do support setting up individual inputs and outputs for an audio interface. If there was an app that would make iOS create.
There is already such thing for MIDI, just wondering if there . Obviously, Audiobus somehow does this, but it requires developers to implement Audiobus SDK. What if Audiobus would just act like a multi-input and multi-output audio interface?
Not sure if technically possible, but on MacOS, this is a thing and there are many apps for virtually routing audio (including built-in "Audio MIDI setup" app, but for more advanced stuff there is Soundflower, Blackhole or Loopback...)
The benefits? Especially for realtime recording from apps that do not support multi-out Audiobus like Drambo or Beatmaker 3, into e.g. Cubasis, Aurio Pro or so. Of course, this should allow for interconnecting much more apps since selecting audio interface is generally supported.
Comments
It would be nice, but the only way I can think of to do this so that any app could use it as an audio I/O point would be to write an audio driver and that's something that Apple doesn't allow on iOS at this point. (Unless they've changed things. It's completely possibly technically and Apple even has a driver kit that builds user space drivers. But, as far as I know, this is banned by the app store for iOS devices.)
It would be a good start if iOS/iPadOS had a proper Audio & Midi setup so we could use multiple devices at the same time when they are hooked into a USB-Hub. Currently the last connected device 'overrides' the currently selected device if it provides an input or output.
It's perfectly possible to use two devices if one is input only and the other output only, but if a device is both input & output it overrides everything.
For example I can have an USB audio-interface (input & output) connected, and when I hook up a headset it 'takes over' the input & output duties...
It's even worse, maybe I want to use GarageBand with a Lightning headset but use the mics on the iPhone to record my voice, the headset mic is too close and causes 'ringing feedback' (pure feedback is canceled but the 'reduction ring' is still there) when listening at higher volumes...
Technically the input selection is is doable (Twisted Wave does this) as an example but many apps simply ignore the possibilities of input selection (yes. it's even possible to select any of the mics on the device individually).
But then again, Audio doesn't seem to be a priority at Apple unless it's for playing back music or something...
There's a setting in Audiobus called Multiroute Audio, it let you set more than 1 interface at the same time (1 In, 1 Out).
It's a bit unstable since it's sort of an obscure/hidden apple feature apparently.
Aye, it was pretty cool using the headphone jack in conjunction with my audio interface back in the day in Audiobus.
You can always use something like "Mixer send receive" coming with apeMatrix inside your favorite AUv3 host.
Exactly that! I used it with a 2 input looper, so I had 1 loopeable signal and 1 soundscape or ambient.
Then I got a bigger interface and I didn't need it anymore.
Nice tip, didn’t know about this one! Unfortunately, it seems to not work between hosts.
Still, it could be handy e.g. in Drambo if you need to break the rule of routing signal from right to left. Thanks!
Indeed.
I've tried SonoBus (public beta available on sonobus.net) in different configurations but even on the same iDevice, it's hard to stream audio without dropouts when using multiple hosts, not to speak of latency.
If hardware developers are reading this: Please build a class compliant 8-channel audio loopback USB dongle! 😍
It would be connected over USB or CCK3 and show up as an 8 in and 8 out audio interface.
Input channels 1..8 would be connected to output channels 1..8 one by one.
I was thinking the same, but it’s a shame we think of overcoming iOS limitations by building a hacky hardware 🙄
And Apple still wonders why people blame iPads to be far away from a "pro" device....
So true. Not sure if Apple really care though.