# yaleD - Reverse Delay — Audio Unit Effect

> Audio Unit (AUv3) plugin for reverse delay audio effects. (iPhone/iPad app by Sonosaurus LLC.)

- Source: https://appshunter.io/ios/app/yaled-reverse-delay/id1477503080 (this page in markdown: same URL + `.md`)
- Developer: [Sonosaurus LLC](https://appshunter.io/developer/338977569)
- Category: Music
- Price: $1.99
- Rating: 4.90/5 from 24 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 13 MB
- Released: 2019-10-03
- Data updated: 2026-08-18
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/yaled-reverse-delay/id1477503080/reviews.md

## What is yaleD?

yaleD is a dedicated reverse delay audio effect, with full support as an Audio Unit (AUv3) plugin extension. Please note that while it works as a standalone app, it is designed to be used from other host audio apps such as GarageBand, AUM, Audiobus 3, Cubasis, etc!

A reverse delay effect continuously listens then plays back reversed chunks of the audio input depending on the delay time, feedback and filtering settings. Can be used for both obvious or subtle effects depending on the setup.

Since a reverse delay is sensitive to positional sync as well as delay time, the reversals are appropriately synced to the host transport timeline when playing back and using the beat-based delay time. Or the Hold Time button can be used to both sync and set the delay time manually by pressing and releasing it at the appropriate time.

- Complete control over input gain, and independent wet and dry output levels.

- Feedback with cross-pan and both low-pass and high-pass filtering.

- Two available repeat behaviors when using feedback: one keeps all repeats reversed, while the other alternates each repeat reversed then forwards.

- Delay time specified either in milliseconds, or as beats (with 1/16th note resolution) synced to host tempo. You can also specify the maximum delay time (up to 20 seconds!) in the settings to control the per-instance memory usage.

- Can apply a delay time scaling offset to the second channel for interesting stereo effects.

- Optional Tape effect when changing delay time.

- One-Shot mode for doing triggered records and single reverse playback. Great for playing a solo in and reversing just what you want to hear. The hold/record and replay buttons can be controlled with MIDI bindings.

- All parameters are exposed to the AU host so that you can apply automation or MIDI bindings from the host

- Easy to use resizable plugin interface optimized for host apps on both iPhones and iPads. Made for fingers!

## Key features

- Reverse delay audio effect
- AUv3 plugin extension
- Beat-synced or millisecond delay times
- Feedback with cross-pan and filtering
- Optional tape effect
- One-Shot mode for triggered records
- MIDI control and automation support

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/yaled-reverse-delay/id1477503080/reviews.md

### 5/5 — Yes

*2022-12-20*

you have an excellent product long continuation thank you.

### 5/5 — Great on iOS, does not work on M1 macOS

*2022-06-13*

If you only want to use it on iOS, it's great.

### 5/5 — Exquisite app!

*2021-02-07*

Really well thought out and extremely musical! I look forward to their next app.

### 5/5 — Excellent

*2020-02-25*

This effect is very cool, experimental, but definitely something I will make a lot of use of

### 5/5 — Great effect!

*2019-10-06*

I love this little plugin. The reverse delay effect adds a nice background texture and complexity to my tracks and i love how you can set the frequence range to which the effect will be applied. Very useful feature! I thought at first that this plugin wouldn’t be a very useful to me, but it turns out to be a surprisingly pleasant and fun sounding effect to add to your tracks. I already loved the other apps from this developer and i am very happy to see he is back again with this cool and unique plugin. Hope there might be even more coming in the future 👍

### 5/5 — Superb for lo fi ambiance and soundscaping

*2019-10-06*

This app is a positive steal at the price. Offers a convincing and fairly unique tape reverse delay effect, stretchable to up to 20 seconds, and with feedback at 100%, creates a non decaying loop to provide interesting ‘backing tracks’. Used in conjunction with the audio filter slider, you can create low fi degraded reversed echoes, and if you set the feedback to less than 100%, and drag the filter slider down, the loop will gradually degrade into warmer and warmer soft mushiness, like a tape delay. Lovely for Hainbach-style ‘destruction loops.’ The dev is very responsive on the Audiobus forum, and fixed a slow bpm crash issue within 24 hours of it being mentioned. Currently running rock solid in AUM. My new fave effect, should be an insta-but for anyone into ambiance and soundscaping.

### 5/5 — Love!

*2019-10-05*

So i LOVE this. A few suggestions... 

extend the feedback beyond 100%. (Make it so that the sound never fades out. For chord making into drone.)

Make the feedback amount controllable by midi. (You can do other controls too, but i really want is one.) a volume pedal connected for feedback amount would be freaking awesome.

**Developer response:** I'm glad you are enjoying it! Regarding the MIDI binding... all the parameters are exposed so an AU host should be able to do its own MIDI binding to every parameter, including AUM, and Audiobus 3, among others. The plugin does accept MIDI but I only let you internally bind to the button-like commands there, just in case. If you are using the app standalone, then yes, that's where it would be useful for me to have more bindings in the app. Please feel free to contact me via email at support@sonosaurus.com for further conversation!

### 5/5 — Just Brilliant

*2019-10-05*

I’m not usually a review writer, should be, but I don’t. This thing has inspired me to put fingers to keyboard. It’s just amazing. If you’re into your ambient, soundscape type stuff, just get it and at £1.99 it’s a no brainer!!! Everyone should buy it, support the developer, get him to make more stuff 😊

### 5/5 — A very unusual and thought out delay.

*2019-10-04*

What a fabulous little delay tool very unusual and unique and fun thanks @sonosaurus for bringing this to iOS. 

Well recommended you won’t want to reverse your decision after buying this.!

## Frequently asked questions about yaleD

### What is yaleD used for?

yaleD is an audio effect plugin that creates a reverse delay sound. It's designed to be used within other music production apps on iOS devices to add creative audio manipulation to your tracks.

### Can yaleD be used as a standalone app?

While yaleD can function as a standalone app, it is primarily designed as an Audio Unit (AUv3) plugin extension. Its full potential is realized when used in conjunction with host audio applications like GarageBand, AUM, or Audiobus 3.

### How does yaleD sync its delay times?

yaleD offers flexible delay time syncing. You can specify delay times in milliseconds or as beats, which can be synced to your host application's tempo. It also features a 'Hold Time' button for manual syncing and setting the delay time.

### What kind of feedback options does yaleD offer?

yaleD provides detailed feedback control, including cross-panning and both low-pass and high-pass filtering. It also includes two distinct repeat behaviors: one that keeps all repeats reversed, and another that alternates between reversed and forward repeats.

### Does yaleD support MIDI control?

Yes, yaleD supports MIDI bindings. All parameters are exposed to the AU host, allowing you to apply automation or control them via MIDI from your host application. The 'One-Shot' mode's record and replay buttons can also be controlled with MIDI.

### What is the price of yaleD?

yaleD is a paid application, available for $1.99. This one-time purchase grants you access to all its features for reverse delay audio effects.

### How often is yaleD updated?

yaleD was last updated to version 1.2 on October 12, 2019. While the app has not seen recent updates, it remains a stable and functional AUv3 plugin for iOS music production.

### Is yaleD suitable for beginners?

yaleD is designed with an easy-to-use, resizable interface optimized for touch controls on iPhones and iPads. While it offers advanced features, its core functionality and intuitive design make it accessible for producers looking to experiment with reverse delay effects.

## Version history (last 5 releases)

### 1.2 — 2019-10-12

- Added ability to turn off the cross-pan of feedback and fixed behavior of the cross-pan when centered.

### 1.1 — 2019-10-07

- Added new reverse delay option which keeps all the repeats reversed when using feedback. Since I believe this is the more desirable behavior, it is the new default. The original version of the effect had the repeats alternating between reverse and forward, you can still get this effect by using the alternate setting of the new option.

- Added informational popups when switching options that may not be obvious.

- Other bug fixes

### 1.0.2 — 2019-10-06

- Fixed crash issue when adjusting beats that exceed max delay time

From 1.0.1:
 - Fixed some clicking issues when using Hold for Time and one-shot record features

### 1.0.1 — 2019-10-05

- fixed some clicking issues when using Hold for Time and one-shot record features

### 1.0 — 2019-10-04

No release notes.

## Apps similar to yaleD

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Reverse Song Player](https://appshunter.io/ios/app/reverse-song-player/id1087432789) | 4.4 (462) | Free | Music |
| [Reverse Audio](https://appshunter.io/ios/app/reverse-audio/id1254981556) | 4.7 (37,655) | Free | Music |
| [SpaceFields](https://appshunter.io/ios/app/spacefields/id1596872812) | 4.7 (47) | $10.99 | Music |
| [iPulsaret](https://appshunter.io/ios/app/ipulsaret/id565880268) | 4.8 (31) | $4.99 | Music |
| [Sparkle - Cross-Synthesis](https://appshunter.io/ios/app/sparkle-cross-synthesis/id818477094) | 5.0 (48) | $4.99 | Music |
| [GSDSP Quantum Delay](https://appshunter.io/ios/app/gsdsp-quantum-delay/id6469328297) | 4.8 (17) | $14.99 | Music |

## More apps by Sonosaurus LLC

- [ThumbJam](https://appshunter.io/ios/app/thumbjam/id338977566)
- [DrumJam](https://appshunter.io/ios/app/drumjam/id530162824)
- [WARBL Configuration Tool](https://appshunter.io/ios/app/warbl-configuration-tool/id1445377915)
- [SonoBus](https://appshunter.io/ios/app/sonobus/id1523236365)
- [PaulXStretch](https://appshunter.io/ios/app/paulxstretch/id1619014008)

All apps by Sonosaurus LLC: https://appshunter.io/developer/338977569

---

*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 2026-08-18.*