About Crystal Synth XT
Crystal Synth 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 Synth XT brings that same...
Crystal Synth 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 Synth XT brings that same powerful synthesis engine to the iPad and iPhone. Crystal Synth XT features MIDI keyboard input via Apple's camera adapter and sharing of sounds with the desktop version of Crystal. == Features == Browse through the included sounds and use the 2 octave keypad or keyboard 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 or iPhone and play Crystal Synth XT like a hardware synth. == Virtual MIDI == Use virtual midi to play Crystal Synth XT from a midi controller app. Use the Settings app to turn on the 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. == Inter App Audio and Audiobus == To use IAA or Audiobus to record into other apps, turn on Background Audio for Crystal Synth XT in the Settings app. See demonstration videos on the greenoak.com website. == Different Versions == If you don't need all the features of Crystal Synth 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. The XT version adds features like MIDI keyboard input via the iPad's camera adapter, IAA/Audiobus, and patch sharing with the desktop version. Choose the app that is best for you! == Notes == Important note for iPhone users: Crystal Synth 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. However, 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. For videos and information about Crystal Synth XT, visit: http://www.greenoak.com
Version History This update addresses a crash that can sometimes occur when launching Crystal Synth XT. 2.1.9 07/27/2024 This update from Apple will improve the functionality of this app. No new features are included. Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation. Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews. 2.1.7 03/28/2017 Changes for Garageband and ios10 compatibility. Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews. 2.1.4 12/21/2016 Improved Audiobus support. Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot reply to problem reports in reviews. 2.1.3 04/28/2016 IOS9 support. Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot reply to problem reports in reviews. 2.1.2 10/31/2015 IOS 9 Users please note: an update with support for Audiobus in IOS 9 will be available shortly. Added MIDI Input Selector. MIDI device and channel may now be selected. Also fixes a display problem with pop up menus on iPhone6. Positive reviews are always appreciated! Please send any problem reports via email to
[email protected]. We cannot reply to problem reports in reviews. 2.1 05/06/2015 Added an option for a piano-style keyboard when using an iPad. Restored support for ios6. Positive reviews are always appreciated and encourage us to provide updates! Please send any problem reports via email to
[email protected]. We cannot reply to problem reports in reviews. 2.0.6 10/24/2014 Support for IOS8, including Audiobus 2. (Note to Audiobus users: for best results, use an Audiobus buffer size of at least 256 frames.) Please do not report problems in reviews. We cannot reply to help you solve the problem when you do that. If you encounter problems, contact us at crystalsynth at gmail.com and we'll be happy to help. 2.0.5 10/03/2014 Note: Version 2.0.4 is not working properly with Audiobus and MIDI input in IOS8, and the Design page is not displaying properly on the iPhone version. We will have an update with the fixes shortly. Thank you for your patience. Support for audiobus 2. Bug fixes. 2.0.4 09/20/2014 Store patches in the Cloud! Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list. They’re stored in the cloud so all your devices have access to these patch banks. If you won’t have internet access when you’ll be accessing your patch banks on your device, no problem. Just use iTunes file sharing to put your .fxb patch bank files directly on your device and you’ll have them with you no matter where you go. Access the locally stored patch bank files by tapping the list icon. Also: expanded sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT. Also: hundreds of new included patches. Crystal Synth XT now includes bundled patch banks which are accessible using the list button next to the patch selector. - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 2.0.3 01/09/2014 Cloud patch bank management. Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list. Also: expanded the sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT. Also: expanded patch bank size. 2.0.1 12/17/2013 Cloud patch bank management. Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list. Also: expanded sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT. 2.0 12/12/2013 ios7 support and new feature: Ring Modulation - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.9.1 10/02/2013 Audiobus support (at least an iPhone 5 or IPad 3rd gen recommended for use with Audiobus.) - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. - Positive reviews are always welcome and encourage us to provide updates! 1.9 04/27/2013 New scales: Chromatic and Blues. Added automatic detection of patch bank file to be imported. - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.8 06/04/2012 Multitasking - Use the Settings app to turn on the CrystalSynthXT Background Audio mode if you'd like Crystal to play audio when in the background, for example to play from a virtual midi controller app. This update adds compatibility with more virtual midi controller apps. - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.7 04/27/2012 Multitasking - Use the Settings app to turn on the CrystalSynthXT Background Audio mode if you'd like Crystal to play audio when in the background, for example to play from a virtual midi controller app. Note on Virtual MIDI: While this version works with controller apps like StepPolyArp and Genome, we've learned there are other controller apps with which it is incompatible. We will have an update with wider compatibility in just a few days. - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.6 04/13/2012 - Bug fix update: fixed crash launching when an app holding a midi input is in the background. - Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.5 12/17/2011 Updated to include support for ios5. Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.4 10/19/2011 - New two octave keypad with selectable modes - Patch designer on iPhone for creating patches - Audio recording which may be copied to desktop - Audio copy/paste to copy recordings to other apps - Support for Line 6 MIDI Mobilizer to connect a MIDI keyboard to Crystal on an iPhone or iPad - Patch breeding can now include up to 20 user patches - High precision mode (drag vertically to get high precision after touching slider) for precise slider adjustments. Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews. Positive reviews are always welcome and encourage us to provide updates! 1.2 03/16/2011 1.1 12/21/2010
Previous Versions
Here you can find the changelog of Crystal Synth XT since it was posted on our website on 2016-09-29 00:14:42.
The latest version is 2.1.9 and it was updated on 2026-06-10 05:18:56. See below the changes in each version.
Crystal Synth XT version 2.1.9
Updated At: 2026-06-10
Changes: Version History This update addresses a crash that can sometimes occur when launching Crystal Synth XT. 2.1.9 07/27/2024 This update from Apple will improve the functionality of this app. No new features are included.
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews. 2.1.7 03/28/2017 Changes for Garageband and ios10 compatibility.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews. 2.1.4 12/21/2016 Improved Audiobus support.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot reply to problem reports in reviews. 2.1.3 04/28/2016 IOS9 support.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot reply to problem reports in reviews. 2.1.2 10/31/2015 IOS 9 Users please note: an update with support for Audiobus in IOS 9 will be available shortly.
Added MIDI Input Selector. MIDI device and channel may now be selected. Also fixes a display problem with pop up menus on iPhone6. Positive reviews are always appreciated! Please send any problem reports via email to
[email protected]. We cannot reply to problem reports in reviews. 2.1 05/06/2015 Added an option for a piano-style keyboard when using an iPad. Restored support for ios6.
Positive reviews are always appreciated and encourage us to provide updates! Please send any problem reports via email to
[email protected]. We cannot reply to problem reports in reviews. 2.0.6 10/24/2014 Support for IOS8, including Audiobus 2.
(Note to Audiobus users: for best results, use an Audiobus buffer size of at least 256 frames.) Please do not report problems in reviews. We cannot reply to help you solve the problem when you do that. If you encounter problems, contact us at crystalsynth at gmail.com and we'll be happy to help. 2.0.5 10/03/2014 Note: Version 2.0.4 is not working properly with Audiobus and MIDI input in IOS8, and the Design page is not displaying properly on the iPhone version. We will have an update with the fixes shortly. Thank you for your patience.
Support for audiobus 2. Bug fixes. 2.0.4 09/20/2014 Store patches in the Cloud!
Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list. They’re stored in the cloud so all your devices have access to these patch banks.
If you won’t have internet access when you’ll be accessing your patch banks on your device, no problem. Just use iTunes file sharing to put your .fxb patch bank files directly on your device and you’ll have them with you no matter where you go. Access the locally stored patch bank files by tapping the list icon.
Also: expanded sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT.
Also: hundreds of new included patches. Crystal Synth XT now includes bundled patch banks which are accessible using the list button next to the patch selector.
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 2.0.3 01/09/2014 Cloud patch bank management. Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list.
Also: expanded the sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT. Also: expanded patch bank size. 2.0.1 12/17/2013 Cloud patch bank management. Put your Crystal patch bank files (.fxb files) into your Dropbox folder here: /Apps/CrystalSynth/CrystalPatchBanks. Press the Dropbox icon in Crystal Synth XT and choose a bank to be loaded from the list.
Also: expanded sample library. All the sound fonts from the Crystal sample ROM library are now included in Crystal Synth XT. 2.0 12/12/2013 ios7 support and new feature: Ring Modulation
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.9.1 10/02/2013 Audiobus support (at least an iPhone 5 or IPad 3rd gen recommended for use with Audiobus.)
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
- Positive reviews are always welcome and encourage us to provide updates! 1.9 04/27/2013 New scales: Chromatic and Blues. Added automatic detection of patch bank file to be imported.
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.8 06/04/2012 Multitasking - Use the Settings app to turn on the CrystalSynthXT Background Audio mode if you'd like Crystal to play audio when in the background, for example to play from a virtual midi controller app. This update adds compatibility with more virtual midi controller apps.
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.7 04/27/2012 Multitasking - Use the Settings app to turn on the CrystalSynthXT Background Audio mode if you'd like Crystal to play audio when in the background, for example to play from a virtual midi controller app.
Note on Virtual MIDI: While this version works with controller apps like StepPolyArp and Genome, we've learned there are other controller apps with which it is incompatible. We will have an update with wider compatibility in just a few days.
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.6 04/13/2012 - Bug fix update: fixed crash launching when an app holding a midi input is in the background.
- Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.5 12/17/2011 Updated to include support for ios5.
Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.4 10/19/2011 - New two octave keypad with selectable modes
- Patch designer on iPhone for creating patches
- Audio recording which may be copied to desktop
- Audio copy/paste to copy recordings to other apps
- Support for Line 6 MIDI Mobilizer to connect a MIDI keyboard to Crystal on an iPhone or iPad
- Patch breeding can now include up to 20 user patches
- High precision mode (drag vertically to get high precision after touching slider) for precise slider adjustments.
Please send any problem reports via email to
[email protected] We cannot reply to problem reports in reviews.
Positive reviews are always welcome and encourage us to provide updates! 1.2 03/16/2011 1.1 12/21/2010
Crystal Synth XT version 2.1.9
Updated At: 2024-07-27
Changes: This update addresses a crash that can sometimes occur when launching Crystal Synth XT.
Crystal Synth XT version 2.1.9
Updated At: 2024-07-27
Changes: Jul 27, 2024
Version 2.1.9
This update addresses a crash that can sometimes occur when launching Crystal Synth XT.
Crystal Synth XT version 2.1.7
Updated At: 2020-03-29
Changes: 28 mars 2017 Version 2.1.7
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Crystal Synth XT version 2.1.7
Updated At: 2017-03-28
Changes: Mar 28, 2017 Version 2.1.7
This app has been updated by Apple to use the latest Apple signing certificate.
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Crystal Synth XT version 2.1.7
Updated At: 2017-03-28
Changes: Mar 28, 2017 Version 2.1.7
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Crystal Synth XT version 2.1.7
Updated At: 2017-03-28
Changes: Mar 28, 2017 Version 2.1.7
This app has been updated by Apple to display the Apple Watch app icon.
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Crystal Synth XT version 2.1.3
Updated At: 2010-12-22
Crystal Synth XT version 2.1.7
Updated At: 1970-01-01
Changes: 28. März 2017 Version 2.1.7
This app has been updated by Apple to use the latest Apple signing certificate.
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Crystal Synth XT version 2.1.7
Updated At: 1970-01-01
Changes: 2017年3月28日 Version 2.1.7
Support for version 2 of the Dropbox protocol. Bug fixes for MIDI CC smoothing and app orientation.
Positive reviews are always appreciated! Please send any problem reports to
[email protected]. We cannot respond to problem reports in reviews.
Disclaimer
Official App Store Link
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