# WU: AUSampleDelay — Sample Delay Audio Unit

> Audio Unit plugin for system audio effects with a user interface. (iPhone/iPad app by Jens Guell.)

- Source: https://appshunter.io/ios/app/wu-ausampledelay/id1530887051 (this page in markdown: same URL + `.md`)
- Developer: [Jens Guell](https://appshunter.io/developer/1195004865)
- Category: Music, Utilities, Music
- Price: Free (on sale, was $1.99)
- Rating: 4.50/5 from 8 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 30 MB
- Languages: English
- Released: 2020-09-12
- Data updated: 2026-07-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/wu-ausampledelay/id1530887051/reviews.md

## What is WU?

The WU (Wrapped Units) Series audio units exposes the user interface of the systems Audio Unit and makes it available to all host applications that support AUv3 audio processing plugins. Even if those hosts do not support UI-less units. Use the effect, well known from GarageBand on MacOS and iOS with any host application and ensure consistent sound with all your projects.

## Key features

- Exposes system Audio Unit UI
- Compatible with AUv3 hosts
- Consistent sound across projects
- Use effects from GarageBand

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/wu-ausampledelay/id1530887051/reviews.md

### 5/5 — Exactly what I was looking for

*2020-12-15*

Perfect for making precise adjustments to a groove, works great for making drums and samples hit a little bit off the grid even if quantized, can really change the groove up by applying it to individual drum samples in various amounts. Offsetting the start-point of a sample into the negative was one of the only abilities I missed in BM3 coming from mpc hardware. I use this on my drums and bass every time, make the bass notes hit just a little late, gives it a nice humanized feel. Thanks.

## Frequently asked questions about WU

### What is WU: AUSampleDelay?

WU: AUSampleDelay is an audio unit that provides a user interface for system audio effects, making them available in any AUv3-compatible host application. It ensures consistent sound across your music projects.

### Is WU: AUSampleDelay free?

Yes, WU: AUSampleDelay is available for free. It does not have any in-app purchases or advertisements.

### What devices does WU: AUSampleDelay support?

WU: AUSampleDelay is supported on iPhone, iPad, and iPod touch devices. It requires iOS 4+.

### How often is WU: AUSampleDelay updated?

The app was last updated on March 12, 2024, with version 1.21. This indicates active development and maintenance.

### What is the age rating for WU: AUSampleDelay?

WU: AUSampleDelay has an age rating of 4+, making it suitable for a wide range of users.

### Can I use WU: AUSampleDelay with any music app?

WU: AUSampleDelay can be used with any host application that supports AUv3 audio processing plugins. This includes many popular digital audio workstations on iOS.

### What makes WU: AUSampleDelay useful for music production?

It allows you to access and control system audio effects, similar to those found in GarageBand, within any AUv3 compatible host. This provides flexibility and consistent sound design across different projects.

## Version history (last 3 releases)

### 1.21 — 2024-03-12

The project was updated for Apple's latest compilers and frameworks.

### 1.2 — 2021-02-01

WU Series Maintenance Update 1.2 (January 2021)

- fixed a multiple instances problem with the editors
- fixed a wrong icon assignment of the highpass filter unit
- fixed a parameter assignment bug, if the units define special addresses
- fixed possible adjustment of read-only parameters
  please note, that read-only parameters are still displayed with the interface
- added parameter min/max value validity checking
- re-adjusted finer control of the sliders
- added support for string values
- added support for labels for indxed parameters
- re-adjusted some label sizes and positions
- added fixed point formatting for floating point parameter values
- completely removed resizing control from the UI
- disabled gestures for resizing and positioning internal view
- reduced diagnostic printout during load
- removed MIDI assignment extension due to problems with some hosts,
  which send unwanted MIDI controllers and initializers to chained effects
- all WU units are now exposed a standard audio effects (aufx),
  effectively increasing the amount of hotsts supporting them
- please note, that any extensions to these units would
  make the aupreset format incompatible with the original
  and no longer share-able across platforms and hosts

- added the AUPitch shifter unit to the collection
  please note that the pitch shifter has one parameter,
  that is not intended for realtime use
- added the AUMIDISynthesizer to the collection
  this unit is a multitimbre multi MIDI channel sound module
  with a standard General MIDI compatible sound bank.
- added the AUSampler unit with a set of GM based presets
  please note that this release is a preview release for the
  capabilities of the sampler unit and its file format

### 1.0 — 2020-09-12

No release notes.

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All apps by Jens Guell: https://appshunter.io/developer/1195004865

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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 2026-07-01.*