RP-1 update – further tweaks for AU-friendly iOS delay app

Download from iTunes App StoreRP-1 logo 1I reviewed the excellent RP-1 from Numerical Audio and developer Kai Aras here on the Music App Blog when it was first launched. It provides a compact, but well-featured delay effect and is capable of both conventional and more creative treatments.

RP-1 is a universal app, requires iOS9.0 or later, is a 19MB download and is priced at just UK£4.49/US$5.99. As well as launching with Audiobus and IAA support, the app also included both Ableton Link (tempo sync your delays via Link) and Audio Units (AU) support. The latter means that you can, of course, run multiple instances of the app within a suitable AU host such as MultitrackStudioCubasis, Modstep or AUM.

RP-1 in use via AU within Cubasis 2... and adding some nice delay to some synth vocals from Jussi :-)

RP-1 in use via AU within Cubasis 2… and adding some nice delay to some synth vocals from Jussi :-)

Anyway, developer Kai has been pretty active in terms of updates since the app was first launched and a further one appeared in the App Store yesterday. This takes the app to v.1.2.3 and the update applies some fixes to the Audiobus connectivity and also updates the Ableton Link SDK to ensure smooth sync with other Ableton Link enabled apps. Having given the update a bit of a spin within Cubasis 2 this morning, all seems to be working well at this end….

There is little not to like about RP-1 and it’s great to see (a) a developer who is obviously so active and (b) keen to embrace the AU format. And, at just UK£4.49/US$5.99, it really is set at a pocket money price. RP-1 is no fuss to use, sounds great and very affordable. Read the full review here but RP-1 comes highly recommended.



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