# auGEN X — Expressive AudioGenerator AUv3 > Experimental audio generator for sound design and audio system testing. (iPhone/iPad app by auDSPr.) - Source: https://appshunter.io/ios/app/augen-x/id1439844878 (this page in markdown: same URL + `.md`) - Developer: [auDSPr](https://appshunter.io/developer/1439844877) - Category: Music, Utilities - Price: $9.99 - Rating: 4.60/5 from 12 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 57 MB - Languages: American English, French (France), German (Germany), Japanese, Latvian, Russian, Chinese (Simplified, China), European Spanish, Swedish - Released: 2018-12-18 - Data updated: 2026-09-01 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/augen-x/id1439844878/reviews.md ## What is auGEN X? auGEN X bridges the creative musical world of artists with the exacting scientific world of audio engineers. What started as a precision audio test utility has grown into a fun experimental sound design instrument. On one end use auGEN X to help set up, test, calibrate, and optimize your audio system. On the other use it to create a wide variety of interesting sounds. auGEN X has a full-featured audio oscillator, a high quality noise generator, and an impulse generator. The simple yet powerful user interface is designed for fast, precise, intuitive control over your signals. auGEN X works both as a Stand-Alone App and as an AUv3 Audio Unit Extension responding to MIDI In and BPM Sync from Hosts. I started making this app because as an audio electronics engineer I could not find a single audio generator that does everything that I require AND is an AUv3 Audio Unit. auGEN X has expanded into a musical tool for exploring and learning sound design. Our goal is for auGEN X to be an Essential in your audio toolbox. We hope you enjoy it and we’re excited to hear the cool things that you do with auGEN X! "I really see this app becoming a standard and a must have component in one's iOS audio app arsenal." - Paul Henry, Paul Henry Pro Audio FEATURES - Oscillator - 3 Modes: Fixed, Frequency or Level Sweep - 4 Wave Shapes: Sine, Triangle, Rectangle, & Saw - Tri & Rect have a Duty Cycle control (1.0% to 99.0%) - Tri, Saw, & Rect are alias-suppressed yielding virtually alias-free performance at musical fundamental frequencies - 10 to 20,480 Hz extended audio frequency range (great for testing subwoofers!) - Full-featured Frequency or Level Sweep with 5 Types, settable Direction, & selectable Repeat or 1-Shot Mode - Sweep Period has a wicked wide range from 1/10,000th of a second to 100 seconds and can alternatively be set as a Sweep Rate in Hz or BPM - Wide sweep range allows for FM & AM style sounds - Noise Generator - 2 Modes: Fixed or Level Sweep - White or Pink Noise - Pink Noise conforms to SMPTE Standard 2095-1:2015 Calibration Reference Wideband Digital Pink Noise Signal - Impulse Generator (useful for checking reverb algorithms) - Impulse Width can be set in samples - AUv3 Audio Unit Extension or Stand-Alone App - Verified to work great in AUv3 Hosts such as GarageBand, Cubasis, AUM, apeMatrix, BeatMaker 3, & Auria Pro - As a Stand-Alone App audio is sent to iPad's built-in speakers, Headphone/Line Out, or to any iOS-compatible USB audio interface connected to the Lightning jack APPLICATIONS - Creative experimental sound design - Sound effects for film, TV, & games - Great chiptune style sounds - Synthesize sirens or alarms - Test, characterize audio equipment - Set up or dial in a home theater - Tune car audio systems - Test subwoofers - Hearing tests - Ear training - Vibration analysis SPECIFICATIONS - Audio signal path uses state of the art Double Precision 64-bit Floating Point for maximum accuracy - Stereo out - Selectable Pan Laws include Linear & Constant Power Panning - Supports 44.1, 48, 88.2, & 96 kHz sample rates - User Guide embedded in App - no internet connection required to read it SYSTEM REQUIREMENTS - Compatible with iOS 9.0 & up (iPad 2, iPad mini (1st Generation), & up) - Support way back to iOS 9 means auGEN X works on every iPad model (except the very first iPad). Breathe new life into your old iPad by using auGEN X to make it a dedicated, precision audio source. - AUv3 Audio Unit Extensions require iPad 4, iPad mini 2, and up - 88.2 & 96 kHz sample rate require iOS-compatible USB audio interface connected to the Lightning jack Watch demos & tutorials on auDSPr's YouTube channel. Subscribe on YouTube: https://youtube.com/channel/UCRZm2cKWVJVfK-l9zrnMeFg Like Us on Facebook: https://facebook.com/AUDSPr-1392948064183211 Follow Us on Twitter: https://twitter.com/auDSPr Keep your ears and eyes open for more upcoming auDSPr audio apps! ## Key features - Full-featured audio oscillator with 4 wave shapes - High-quality noise generator (white and pink) - Impulse generator for reverb testing - AUv3 Audio Unit Extension and Stand-Alone App - MIDI In and BPM Sync support - Precise signal control with intuitive UI ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/augen-x/id1439844878/reviews.md ### 5/5 — This is the one *2026-06-17* I’ve downloaded a lot of different function generators. This is the best one all the other ones are like all trying to have ads and for like the interface is just horrible or it’s the AUV3. This is perfectly great. ### 5/5 — Delia Derbyshire and Karlheinz Stockhausen’s Legitimate Child *2026-03-16* I feel like I’m Delia Derbyshire and Karlheinz Stockhausen’s legitimate child set loose with more noise/sine wave tone generators than logically imaginable with this AUv3 plugin inside AUM. Thank you so very much. Would it be possible to allow setting way past 104.858 seconds LFO rate please? 10 minutes would be welcomed. ### 4/5 — Some sliders not committing to new values in AU instances *2023-04-09* So I’m having issues with this app running as an audiounit. I use cubasis 3 almost exclusively if that is useful info. While triggering auGEN x and adjusting parameters the adjustments will not commit. For example, moving a slider from 143 Hz to 87 Hz immediately jumps back to 143 Hz. Every time auGEN x is triggered the changes that I have made to certain parameters will not stay at the adjusted level. Other that that I like the concept of this app, some of the parameters are slightly cryptic to me. This is sort a strange phenomenon to me because I feel like I am a well seasoned synth tweaker. It’s kind of rare for me to not feel like I understand what is going on with parameters in synth apps. I think I have figured it out and the manual is very good but the icons don’t imply the association’s with the functions to me. ‘Fixed’ ‘Freq Sweep’ and ‘Level Sweep’ are my main issue. This in no way takes away from the app, the only real problem is some of the sliders jumping and unable to commit to new values running as an audiounit. **Developer response:** Hi Obis11, Thanks using auGEN X and thanks for the detailed review. As for the parameters resetting to their original values, you wouldn’t by any chance have any Cubasis 3 automations on them? This would certainly jump them back. Or if you have a MIDI Program Change or Bank Change message, this would also cause parameters to change value. If it’s not one of these, please e-mail us at support@auDSPr.com and we’ll be happy to help figure out what’s going on here. As for the parameter names not sounding so “synthy”, it’s because auGEN X started life as a piece of test equipment so maybe this is why they might sound “testy” instead. Zoinks! Cheers! auDSPr ### 1/5 — Complete waste of money *2020-08-23* Only “works” as an Audio Unit Extension in GarageBand. Does not work with Inter-App Audio. Now for the bad news. Can only be used on one track per song. Now for the blunt truth. This app crashes more than any audio app I have ever used. What’s more, it is insanely-overpriced (especially considering that it is, essentially, nonfunctional). Really crummy of the developer to market this as a “cool thing to make weird noises with” [paraphrase] in GarageBand when it is, in reality, an expensive, poorly-made, poorly-designed nightmare. **Developer response:** We’re sorry you’re not happy with auGEN X. Please e-mail us at support@auDSPr.com and so we attempt to help you. auGEN X does not support Inter-App Audio - we never claimed that it did. As for working as an Audio Unit Extension, numerous people have posted videos using auGEN X in AUM, apeMatrix, and Cubasis. Check out our website for examples. For our App Store demo video, we used 5 instances of auGEN X in Cubasis. Please share your crash information with us, so we can understand your issues. It’s curious because we have not heard complaints of crashes from anyone else. Cheers? David Simpao auDSPr ### 5/5 — Nice *2018-12-20* Nothing like a new and different app, especially when its well done. Even the developer is new to the scene. I hope he continues to release apps because he obviously knows what he is doing. I rarely say anythng about the price of a good app but this one is far from cheap. Is it too expensive? It depends what that means. I bought it despite the price because i was impressed by a review and demo done by someone i think knows more than his own name. I hope the price goes down so that more people can enjoy it. **Developer response:** Thanks the kind and honest review, Perry Pelican! Stay tuned - auGEN X is going to keep getting better! I’ve been catching heat on the pricing, so we’ll have to wait and see how things go. Interested parties will have to follow auDSPr on social media so they know if and when I’m gonna have a flash sale! Even I haven’t decided yet when or if these will happen... ### 5/5 — DJ Puzzle recommended this on YouTube *2018-12-19* So I’m buying it! Amazing app. Please make it 8 voice poly with detuning! As an AU I’d say one instance for each timbre, and then 1..n voices per instance. I like the way Volt Synth lets you adjust the polyphony. Amazing first app! Go go go! Also, is it MMXVIII already? How time flies. Oh, and an oscilloscope would be killer. I can hook it up the the tek but then I’d have to get off the couch. **Developer response:** I love the enthusiasm @jdubiner! Thank you! And... Thank You, Dj Puzzle! auGEN X started life as an audio test tool, but the community is pulling me to make it a synth — so it looks like that’s where I’m heading! Now, you’ve got me thinking about polyphony... and an oscilloscope. Remember, apeMatrix has a sweet ‘scope. And yes, Volt rocks! Before we know it, it will be MMXIX. Where does the time go? - auDSPr! ### 5/5 — Waveform Precision Toolkit *2018-12-18* This is a great app for sound design. You can exercise precise control over the waveforms it generates and use them as fodder for your modular synthesis explorations. Combine this app with FAC Envolver to generate useful evolving MIDI sequences to trigger and control other apps. Great for use in apeMatrix where you can modulate the parameters which opens up all sorts of possibilities. The pan, volume, sweep, and impulse controls plus being able to choose different waveforms along with their frequency range and sweep characteristics are very useful. The in app manual details the app’s functionality. **Developer response:** Thank you @polarpaul for auDSPr’s first ever App Store review! And 5 stars at that! I’ll remember this forever. I’m finding that auGEN X, FAC Envolver, and apeMatrix are a nice combination. Make some cool sounds, my friend! - Dave Simpao, auDSPr ## Frequently asked questions about auGEN X ### What is auGEN X used for? auGEN X is used for both creative sound design, generating experimental sounds and effects, and for precise audio system testing, calibration, and optimization. It can help set up home theater systems, tune car audio, and even assist with hearing tests. ### What audio signals can auGEN X generate? auGEN X can generate sine, triangle, rectangle, and saw wave shapes with its oscillator, offering fixed frequency or sweep modes. It also includes a high-quality white and pink noise generator, and an impulse generator. ### Does auGEN X work with other music apps? Yes, auGEN X functions as an AUv3 Audio Unit Extension and is verified to work with popular AUv3 hosts like GarageBand, Cubasis, AUM, and BeatMaker 3. It also supports MIDI In and BPM Sync from hosts. ### What are the pricing details for auGEN X? auGEN X is a paid application, priced at $9.99. There are no in-app purchases or subscription models associated with this app. ### Is auGEN X suitable for beginners in sound design? While auGEN X offers advanced features for professionals, its simple yet powerful user interface is designed for fast, precise, and intuitive control, making it accessible for users exploring sound design for the first time. ### How often is auGEN X updated? The app was last updated on January 30, 2026, indicating a commitment to ongoing development and support. Users can expect regular updates to improve functionality and compatibility. ### What devices is auGEN X compatible with? auGEN X is compatible with iPhone, iPad, and iPod devices. It utilizes a state-of-the-art Double Precision 64-bit Floating Point audio signal path for maximum quality. ### Does auGEN X have ads? No, auGEN X does not contain advertisements. As a paid application, it offers an uninterrupted user experience focused on audio generation and testing. ## Version history (last 5 releases) ### 1.2 — 2026-01-30 Version 1.2 is a FREE Upgrade for current users New features for Stand-Alone Mode + Core MIDI - control auGEN X from your connected MIDI hardware + Settings Page: Preferred Sample Rate & Buffer Size - optimize auGEN X performance for your device + Added support for automation recording in Logic Pro for iPad + Onscreen Number Keypads now support input from Hardware Keyboards (iPad) ### 1.1.1 — 2020-09-15 Version 1.1.1 (11) is a patch release to correct a few issues that crept into the last release: - Fixed a crash which occurred when running multiple instances in some Host Apps. - Fixed Host BPM Sync which accidentally got broken in the last release. - Fixed issue where MIDI Input Settings were not showing when running in Audio Unit Host Apps. We apologize for any inconvenience the previous Version 1.1 might have caused. ### 1.1.0 — 2020-06-22 + FREE Upgrade for current users: auGEN X is now a Universal App supporting iPhone & iPod touch! + Sweep Animations show exactly what your Frequency and Level Sweeps are doing + Warp the Shape of the Sine & Saw Waves AND their Sweep equivalents + Preset Sharing: Export & Import User Presets + Channel Tests are now also available when running auGEN X in Audio Unit Host Apps + MIDI Input Settings: Set MIDI Input Channel & OMNI for each instance of auGEN X + Languages: auDSPr audio apps support for 简体中文, Español, русский, 日本語, Français, Deutsche, Svenska, Latviešu + The auDSPr Preset Manager fully supports Dynamic Type. + Accessibility: Added VoiceOver screen reader support to assist blind & visually impaired users + Many changes to improve stability, speed up launch time, make the UI more consistent, etc. ### 1.0.2 — 2018-12-18 auGEN X just keeps getting better! Version 1.0.2 is a maintenance update to polish things up for our big launch.

 - Now the Impulse also responds to MIDI Note-On/Off. This is great for adding a thump to your attacks. We nearly doubled the maximum Impulse width to 63 samples for even more thump. 
- Fixed an issue where the controls would sometimes disappear when closing and re-opening the window in AUv3 Hosts such as AUM and apeMatrix. 
- Eliminated clicks when starting and stopping the Oscillator.
 - Fixed a minor range limit issue when using the number keypad to enter sweep rates.
 - Improved the colors on the e-mail form. ### 1.0.1 — 2018-12-13 auGEN X just got more musical! Version 1.0.1 adds MIDI In and BPM Sync from AUv3 Audio Units Host Apps. Use MIDI Note-On/Off messages to play auGEN X's Oscillator and Noise Generator like a synthesizer. Synchronize Frequency and Level Sweeps to the Host's tempo at 1x/2x/3x/4x speed for cool rhythmic effects. ## Apps similar to auGEN X | App | Rating | Price | Category | | --- | --- | --- | --- | | [GSDSP Quantum Granulator](https://appshunter.io/ios/app/gsdsp-quantum-granulator/id6741062705) | 5.0 (7) | $14.99 | Music | | [TB Morphit](https://appshunter.io/ios/app/tb-morphit/id1487595036) | 4.7 (32) | $8.99 | Music | | [Generator](https://appshunter.io/ios/app/generator/id298840802) | 3.3 (3) | $8.99 | Music | | [TB DualVCF](https://appshunter.io/ios/app/tb-dualvcf/id1505169270) | 4.9 (18) | $4.99 | Music | | [TB Reverb](https://appshunter.io/ios/app/tb-reverb/id1474944185) | 4.8 (54) | $8.99 | Music | | [Ringotron](https://appshunter.io/ios/app/ringotron/id6474263444) | 5.0 (15) | $8.99 | Music | ## More apps by auDSPr - [auSCOPE X](https://appshunter.io/ios/app/auscope-x/id1524867812) - [volumeCTRL](https://appshunter.io/ios/app/volumectrl/id6444421682) All apps by auDSPr: https://appshunter.io/developer/1439844877 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*