Envelope AU Reverb by DDMF
Envelope is a high class reverb audio unit for use as a standalone app or (preferably) in AUv3 hosts.
| Price | $9.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Audio Unit (AU) |
| Rating | total: (19), current: (19) |
| Version | 1.1.6 |
| Released | 06/15/2016 |
| Updated | 01/02/2026 |
Envelope has already found its way into many recording studios around the world as a desktop plugin, and is now the first effect by the renowned plugin manufactory DDMF to be released for the iOS platform.
Version 1.1.6 release notes
- built for iOS26 - provided answers for new age classification scheme
More Apps by Christian Siedschlag (5)
The ERS 250 reverb audio plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems.
| Price | $13.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Reverb, Delay, Echo |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (6), current: (6) |
| Released | 09/03/2021 |
| Updated | 01/03/2026 |
MagicDeathEye is an emulation of a high-end tube compressor, available in AUv3 and interapp audio format.
| Price | $24.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Compressor, Limiter, Gate |
| Supports | Inter-App Audio (IAA), Audio Unit (AU) |
| Rating | total: (20), current: (20) |
| Released | 06/02/2019 |
| Updated | 12/17/2025 |
Traditional EQs influence the spectrum of the whole stereo field simultaneously. DirectionalEQ takes this concept one big step further: now you can equalize all directions in the stereo field independently.
| Price | $9.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Equalizer, Filter |
| Supports | Audio Unit (AU) |
| Rating | total: (14), current: (14) |
| Released | 10/27/2017 |
| Updated | 01/02/2026 |
A professional compressor plugin in the audio unit format.
| Price | $9.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Compressor, Limiter, Gate |
| Supports | Audio Unit (AU) |
| Rating | total: (15), current: (15) |
| Released | 05/28/2017 |
| Updated | 12/15/2025 |
The 6144 is an Audio Unit equalizer which aims to recreate the legendary sound of the Neve hardware EQs.
| Price | $9.99 |
|---|---|
| Author | Christian Siedschlag |
| Type | Effect |
| Effect type | Equalizer, Filter |
| Supports | Audio Unit (AU) |
| Rating | total: (33), current: (33) |
| Released | 07/18/2016 |
| Updated | 12/15/2025 |