# Stereo Designer Mini - AudioFX

> Multi-purpose stereo shaping tool for Audiobus and Inter-app Audio. (iPhone/iPad app by Holderness Media.)

- Source: https://appshunter.io/ios/app/stereo-designer-mini-audiofx/id949810044 (this page in markdown: same URL + `.md`)
- Developer: [Holderness Media](https://appshunter.io/developer/431020308)
- Category: Music, Entertainment
- Price: $2.99
- Rating: 5.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.4 · 3 MB
- Languages: American English
- Released: 2015-01-09
- Data updated: 2026-07-16
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/stereo-designer-mini-audiofx/id949810044/reviews.md

## What is Stereo Designer Mini?

Stereo Designer Mini is an easy to use multi-purpose stereo shaping tool for Audiobus and Inter-app Audio. Create unique wide stereo image, "stereoize" a mono sound source, apply mid/side processing, independent high and low pass filters per channel, and more.

Process synths, drum machines and hundreds of other apps by connecting through Audiobus. Use Stereo Designer Mini as an effect inside DAW apps such as Garageband, Multitrack DAW, and AudioShare using Audiobus or Inter-app audio. 

Stereo Designer Mini supports Core MIDI via the Camera Connection kit, USB MIDI interfaces, Virtual MIDI and WiFi connections. The MIDI Learn function lets you easily assign your MIDI controller's knobs and sliders to control Stereo Designer's effect parameters. 

Here's what users are saying:

" With Stereo Designer, Christopher has created one of the most impressive/creative stereo enhancement processors I’ve ever had the pleasure to use. If there was a VST/AU version for the desktop then I’d buy it in a heartbeat…."
- Music App Blog (www.musicappblog.com) 

"Add depth to your sounds - 
This can help add a missing dimension to your music. Try running a synth or drum app through it. Use an audio interface to process guitars, hardware synths, or even a signal from your desktop DAW. It works really well with the developer’s other apps too. Great with Audiobus."
- dmonterroso (AppStore review)

In addition to Audiobus and Inter-app Audio support, Stereo Designer Mini can also process external instruments such as guitar, voice and synths by connecting a microphone or professional audio interface such as the Apogee Jam, ONE, or any iOS compatible USB audio interface. Guitarists can use our effects live by connecting the output of their audio interface to an amp.

For more info and video demos visit: https://holdernessmedia.com


Check out our entire FX series including Caramel, Crystalline, Echo Pad and Swoopster!


COMPATIBILITY: 
• requires iOS 12.4 or later 
• iPhone 5 or newer 
• Audiobus 3 compatible (Effect, state saving) 
• Inter-App audio compatible (effect node) 
• Compatible with DAW apps such as Garageband and Multi-track DAW
• compatible with USB audio interfaces 
• Core MIDI compatible 

FEATURES:

• Control individual Left/Right channel volume, panning, filter and more.
• Mid/Side (M/S) processing mode lets you adjust the volume, high and low pass filters for Mid and Side independently. 
• Widen or reduce the stereo width of an input signal.
• Independent panning position of each channel, allowing for interesting stereo placement.
• Individual High and Low Pass filter per channel for additional stereo shaping.
• Phase (polarity) invert Left/Right channels.
• Isolate the Left or Right channel and manipulate the resulting mono signal.
• "Stereoize" mono inputs using individual channel delay + High and Low Pass filters.
• Sum Left and Right channels to mono.
• Audiobus 3 compatible with state saving 
• Inter-app Audio compatible 
• Core MIDI compatible, works with any MIDI controller via MIDI Learn 
• Select presets via MIDI program change


Stereo Designer Mini works with just about any professional iOS compatible USB audio interfaces. Here is a list of interfaces that have been tested and verified to be compatible: 

• Apogee Jam and Jam 96k
• Apogee Mic 
• Apogee ONE for iPad/Mac 
• Apogee DUET for iPad/Mac 
• Apogee QUARTET for iPad/Mac 
• iRig 
• iRig HD 
• iRig iMic 
• Focusrite Scarlett series (*requires USB hub) 
• Alesis io2 
• Alesis IO Dock 
• Behringer UCA202 
• many more

## Key features

- Wide stereo image creation
- Mono sound source stereoization
- Mid/Side processing
- Independent channel filters
- MIDI controller support
- Audiobus and Inter-App Audio integration

## Chart rankings

- #198 in Top Paid · Music (US App Store)

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/stereo-designer-mini-audiofx/id949810044/reviews.md

### 5/5 — One of the best audio mastering tools yet

*2015-06-06*

I mix and master a kit of audio on the iOS. Stereo designer lets you do mid/side stereo processing on your mixes. For all you who are wondering what that is basically can "widen" or "narrow" the perceived audio space of the mix. Really amazing. I can now hear guitar, bass, synths and drums all distinctly instead of my previous muddy mess. Thank you so much

### 5/5 — Top Notch

*2015-01-15*

I own all of Holderness Media's apps. They are high quality and work well with other apps. There are an infinite number of creative uses of these apps. I encourage everyone to try them as they are a great value.

## Frequently asked questions about Stereo Designer Mini

### What is Stereo Designer Mini?

Stereo Designer Mini is a multi-purpose stereo shaping tool designed for use with Audiobus and Inter-App Audio on iOS devices. It allows for advanced control over stereo width, mid/side processing, and channel-specific filters.

### How much does Stereo Designer Mini cost?

Stereo Designer Mini is available for a one-time purchase of $2.99. There are no in-app purchases or subscriptions required.

### Does Stereo Designer Mini have ads?

No, Stereo Designer Mini does not contain advertisements. It is a paid application offering an ad-free experience.

### What devices is Stereo Designer Mini compatible with?

Stereo Designer Mini is compatible with iPhones and iPods running iOS 12.4 or later. It requires iPhone 5 or newer.

### How often is Stereo Designer Mini updated?

The latest version, 1.1.6, was released on May 2, 2024. Updates typically include compatibility improvements and new features, ensuring the app remains current with iOS and audio standards.

### Can I use Stereo Designer Mini with a MIDI controller?

Yes, Stereo Designer Mini supports Core MIDI and features a MIDI Learn function. This allows you to easily assign knobs and sliders from your MIDI controller to control effect parameters in real-time.

### What are the main audio processing features of Stereo Designer Mini?

Key features include creating wide stereo images, stereoizing mono sources, mid/side processing, independent high and low pass filters per channel, and phase inversion.

### Can Stereo Designer Mini be used with DAWs?

Yes, Stereo Designer Mini can be used as an effect within DAW apps like Garageband and Multitrack DAW via Audiobus or Inter-App Audio. It can also process external instruments connected via a microphone or audio interface.

## Version history (last 5 releases)

### 1.1.6 — 2024-05-02

• Add Bluetooth audio support.
• Various bugfixes and improvements.

### 1.1.5 — 2024-04-30

• Various bugfixes and improvements.

### 1.1.4 — 2017-03-10

This app has been updated by Apple to display the Apple Watch app icon.

• Audiobus 3 ready
• Added option to save state on quit and recall when app is next launched (this option can be enabled in the settings page)
• minor bugfixes

### 1.1.3 — 2016-05-20

• update Audiobus SDK
• minor bugfixes

### 1.1.2 — 2015-09-02

• minor bugfix

## Apps similar to Stereo Designer Mini

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## More apps by Holderness Media

- [Echo Pad - Delay FX Processor](https://appshunter.io/ios/app/echo-pad-delay-fx-processor/id573511415)
- [Swoopster - Fuzz Flanger FX](https://appshunter.io/ios/app/swoopster-fuzz-flanger-fx/id736436952)
- [Stereo Designer - StereoShaper](https://appshunter.io/ios/app/stereo-designer-stereoshaper/id791454067)
- [Crystalline - Shimmer Echo FX](https://appshunter.io/ios/app/crystalline-shimmer-echo-fx/id859121707)
- [Caramel - Crusher FX](https://appshunter.io/ios/app/caramel-crusher-fx/id883581594)

All apps by Holderness Media: https://appshunter.io/developer/431020308

## Related topics

[stereo to mono](https://appshunter.io/ios/topics/stereo-to-mono)

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*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 2026-07-16.*