SoundPrism Pro updated – MIDI performance app from Audanika gets Audiobus update

Download from iTunes App StoreSoundprisim Pro logoI reviewed SoundPrism Pro – produced by Audanika and currently priced at UK£3.99 – about 18 months ago on the Music App Blog. SoundPrism Pro is essentially a MIDI performance app. Rather like apps such as Chordion, Gestrument and Synthecaster (all of which I have reviewed previously on the site), SoundPrism Pro does include its own audio engine and has a small collection of sounds built in to it, its real strength is as a performance interface that uses the touchscreen to allow the user to send MIDI data to other synths.

There are a number of reasons why this can be a good thing. First, if you don’t like playing a ‘virtual’ piano keyboard on your iDevice, SoundPrism Pro gives you an alternative performance interface designed to capitalise on the touchscreen rather than mimic a piano key interface. Second, if your keyboard skills are not the best (that’s me; I’m a guitar player rather than a pianist) then an ‘intelligent’ touchscreen interface can allow you to create keyboard parts in a more efficient fashion. And, third, if you have little by way of conventional musical instrument skills, but lots of musical ideas you would like to express, an interface that lets even non-musicians create something musical (and so encourages their creativity and musical development) is a worthwhile tool.

SoundPrism Pro - bass and chord parts over MIDI with just two fingers.

SoundPrism Pro – bass and chord parts over MIDI with just two fingers.


While the internal sounds are fine for experimenting with the interface, SoundPrism Pro really comes into its own as a MIDI performance interface for other iOS synths. Used with the likes of Thor, Nave, Arctic ProSynth, iSEM, etc. the process is both straightforward and a heck of a lot of fun. And, with the advent of MIDI-over-USB to my desktop via apps such as Midimux and MusicIO, I’ve been using SoundPrism Pro more regularly to drive virtual instruments on my desktop computer.

Anyway, the app received its first update since back in September over the weekend taking it to v.2.8.0. The key change is that the latest Audiobus SDK is now supported and, while Audiobus is not essential for sending MIDI data from SoundPrism Pro to other iOS music apps, it’s helpful if you do want to use the apps own sounds (that is, use it as a virtual instrument in its own right) and it is also good to see Audanika keeping the code current with some of the other core iOS music making technologies such as Audiobus.

SoundPrism Pro is a very creative tool for chord/bass MIDI parts, particularly so if you like to work with ambient styles, although it can also be used to bash out some cool dance chords if that’s your thing. While almost anyone could use SoundPrism Pro to create harmonically correct music, a little bit of musical knowledge opens up the possibilities further. This is a seriously well thought out MIDI performance tool that almost any iOS musician could benefit from.

SoundPrism Pro


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    1. For broadly similar reasons to you (my first instrument is guitar), SoundPrism Pro is one of my “essential” iOS music-production apps, and I often use it for keying in chordal “pads” on song demos, on either iPhone or iPad.

      One feature I would love to see added, is a way of generating mod-wheel-type data from SPP. IIRC, there is an accelerometer-based feature (i.e. tilt the device) for this in SPP already, but for me this would only be feasible on iPhone. I’d rather have a “ribbon”-type controller – it doesn’t have to be thick – on the screen, to use like a mod-wheel.

      Failing that: Chordion allows you to add modulation by moving your finger across the chord-pad (especially use for controlling the Leslie-cabinet feature on Galileo Organ). Maybe SPP could implement something similar, perhaps by moving the finger “up” the chord-pad?

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