What's New

Audiobus support (at least an iPhone 5 or IPad 3rd gen recommended for use with Audiobus.)
- Please send any problem reports via email to crystalsynth@gmail.com We cannot reply to problem reports in reviews.
- Positive reviews are always welcome and encourage us to provide updates!

App Description

Crystal XT is a full featured semi-modular synthesizer, ideally suited to creating lush evolving soundscapes. Crystal VST has long been a popular synthesizer on the desktop. Crystal XT brings that same powerful synthesis engine to the iPad and iPhone. Crystal XT features MIDI keyboard input via the iPad's camera adapter or any CoreMIDI-compatible MIDI interface such as the Line 6 MIDI Mobilizer and sharing of sounds with the desktop version of Crystal.

== Features ==
Browse through the included sounds and use the 2 octave keypad to trigger notes to produce evolving, rhythmic, or melodic sounds. Create your own sounds with a single button press using the breed feature. When using an iPad, you can delve into a tweaker's dream by using the extensive editing features to sculpt sounds to your heart's content (editing features are only available when used on an iPad).

Crystal features both subtractive synthesis and frequency modulation (FM) synthesis. It offers abundant modulation control with over 90 parameters which may be modulated, multi-stage envelopes with graphical editors, extensive tempo sync of envelopes/lfo rates/delay times, built-in effects for chorus/flanging/comb filtering/echoes, and a band splitter for effects processing by frequency band. Not only that, Crystal has wave sequencing and granular synthesis. The musical applications for Crystal are literally boundless.

== MIDI ==
With MIDI keyboard input, you can connect a MIDI keyboard to your iPad and play Crystal XT like a hardware synth. Or use a CoreMIDI-compatible MIDI interface such as the Line 6 MIDI Mobilizer and connect your MIDI keyboard to Crystal XT on an iPhone.

== Virtual MIDI ==
Use virtual midi to play Crystal from a midi controller app. Use the Settings app to turn on the CrystalSynthXT Background Audio mode to enable Crystal to play audio when in the background. You can then play Crystal from a midi controller app which supports virtual midi.

== Sharing ==
With patch sharing you can create sounds on your iPad or iPhone while away from the studio, then transfer them to the desktop Crystal when you get back to the studio to use in recording projects. Or, create banks of sounds on the desktop Crystal, then transfer them to the iPad/iPhone Crystal to use in a live performance for a truly portable rig. Use Audio copy/paste to record your performance on Crystal and transfer that performance to another app. Or copy your recorded performance to your computer.

== Audiobus ==
To use with Audiobus, use the Settings app to turn on Background Audio for Crystal Synth XT.

== Different Versions ==
If you don't need all the features of Crystal XT, try the basic version of Crystal, also available in the app store from Green Oak Software. With the basic version you can browse sounds, play notes, and create new sounds, taking advantage of its powerful semimodular synthesis engine. Crystal XT adds MIDI keyboard input via the iPad's camera adapter and sharing of patches with the desktop version. Choose the app that is best for you!

== Notes ==
Important note for iPhone and iPodTouch users: Crystal XT runs on both the iPad and the iPhone. Because of the limited screen space on the iPhone however, the editing pages, which contain the edit controls, are not available when running on that device. But on the iPhone you can still browse sounds, play notes from the keypad, create new sounds with the Breed feature, modify patches with the Design feature, and share sounds with desktop Crystal VST.

MIDI input via Apple's camera adapter requires an iPad. Apple's camera adapter is not supported on the iPhone/iPod Touch. On the iPhone/iPod Touch use CoreMIDI-compatible MIDI interface such as the Line 6 MIDI Mobilizer to connect your MIDI keyboard to Crystal. We recommend www.iosmidi.com as a good place to go to learn whether specific keyboards will work with the camera adapter.

For videos and information about Crystal XT, visit:
http://www.greenoak.com

App Screen Shots

(click to enlarge)

App Changes

January 29, 2014 New version 2.0.3
October 11, 2013 Price Decrease: $4.99 -> $3.99
October 04, 2013 New version 1.9.1
June 07, 2013 Price Decrease: $4.99 -> $3.99
December 22, 2010 Initial Release

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