AltiSpace 21.5 - App Store

AltiSpace is a convolution reverb app with advanced controls that provides realistic sounding natural acoustic space or the most famous reverb devices for any track or mix.

A convolution reverb takes a captured sample (called an impulse response) from a real-world space or hardware and uses this to digitally simulate the reverberation of that space or device down to the last detail and nuance. Because it is sampled, not synthesized, convolution reverb is known for its stunning realism, and it is widely considered to be the best type of reverb. However, unlike the more common algorithmic reverbs, convolution reverbs usually does not have much control over the reverberation process.

But AltiSpace, in addition to the ability to load your own impulse response files and a built-in library of real reverb device presets, has advanced settings such as EQ, gate, ducking, modulation and more. You can change the original impulse response parameters to something completely new and then save it as a new preset.

This app has an easy-to-use user interface, where all the main controls are located on the single screen, and it is ready to use right out of the box, even without additional settings. And at the same time, you can easily change the parameters of the impulse responses from the built-in library to create your own sound.

App features:

Ability to import your own impulse response files.
A large built-in library of presets from the most famous hardware reverbs.
Convenient preset manager with the ability to group and search presets.
Presets can be marked as favorites for display in the favorites group.
Supports MIDI controllers (also Bluetooth) with learn or manually assign mode.
Reverb can work with a stereo or mono input and convert it to stereo.
Add dynamic noise before reverb for a more natural sound.
The gate allows you to turn on the reverb when the threshold is exceeded.
The ducking allows you to turn off the reverb when the threshold is exceeded.
Sets the minimum reverb level for Gate and Ducking modes.
Equalizer with high and low cut filters in chain before or after reverb.
Changing the time (length) of the current impulse response.
Possibility to set a fade out point for a smooth end of the impulse response.
Sets the pre-delay time of the signal before reverb.
Experimental feature to change the pitch of the impulse response.
Amplifying early or late reflections.
Adjusts the stereo image before the reverb.
Haas effect for adding stereo space to a mono signal.
Sets the depth and frequency of modulation the signal before reverb.
Mixing dry / wet signal and adjusting the output level.
Four-channel mode for better stereo ambience.
Input and output level meters.
Indicators of possible input clipping for standalone.
Prevents any output clipping for standalone.
Built-in full description of all controls.

Demo:

https://www.youtube.com/watch?v=WBHxgjkGCoU
https://www.youtube.com/watch?v=GLNi9wHaGew
https://www.youtube.com/watch?v=A3RPopor9gI

AltiSpace is a universal application for iOS and macOS. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). AltiSpace works on iPhone and iPad standalone, as an Audio Unit or Inter-App Audio module, and supports Audiobus. On MacOS, AltiSpace can works both as a standalone application and as an Audio unit (AUv3) with DAWs and other hosts that support AUv3 plugins. AltiSpace has a built-in detailed description of all parameters also available as PDF file on the application site.

You can find more information on AltiSpace and other creative audio apps at:

https://motion-soundscape.blogspot.com

Version History - New app icon.
- Some user interface improvements.
- Quick preset selection (double-tap on the preset name area).
- New reverb modes for better stereo ambience (see description).
- Selecting the type of noise for a more natural sound.
- Imported IR samples duration increased to 30 sec.
- Optimization of the audio engine.
- Several minor bugs were fixed.
- Updated app description. 1.5 05/13/2025 - The Reset button doesn't affect the main In/Out parameters.
- App setting to restore parameters for audio unit.
- Fixed problem with switching knob value on iPhone.
- Fixed issue with jumping knob values.
- Also several minor bugs were fixed.
- Optimization of the audio engine.
- Updated app description. 1.4 08/06/2022 This update makes AltiSpace a truly universal iOS and macOS application. It can work on iPhone and iPad as well as Mac / MacBook with M1 chip (and later). On macOS the AltiSpace can works both as a standalone application and as an Audio unit (AUv3) with DAWs and audio unit hosts like Ableton Live, Logic Pro, GarageBand, MainStage, Cockos Reaper, Plogue Bidule, etc. All application features are available on macOS, including MIDI support, audio unit parameters and importing IR files from any directory of device.

Also in this update:

- Shift + Touch and drag to change the second value of the knob for macOS.
- Optimization of the audio engine.
- Built-in description has been updated.
- Minor bugs were fixed. 1.3 08/01/2022 This update brings significant additions to the app. AltiSpace now supports MIDI controllers (also Bluetooth) for all parameters with learn mode or assigning CC / RPN controls manually. Added a parameter that sets the fade out point for a smooth end of the impulse response. Added the option to filter the list of presets by part of the preset name (search for a preset). When importing impulse response files, you can now select multiple files at once. Improved UI scaling when use as audio unit. Updated built-in app description. All new features can be found in the description. This description is available on the app website as a PDF file. 1.2 12/14/2021 Fixed issue with sample rate 48k in audio unit mode. 1.1.2 10/31/2021 This update improves the app's audio engine and adds the ability to move user presets to different groups. Now you can import a large number of your own impulse responses and group them so as not to search for them in one big list.

All changes:

- Added groups for user presets.
- Ability to select multiple user presets for move and delete.
- Added option to show only user presets for the audio unit host.
- Added option to show only favorite presets for the audio unit host.
- Fixed an issue with blocking UI when using file picker.
- Pictures in descriptions are now displayed in audio unit mode.
- Fixed an issue with the Inter-app audio control panel on iPhone.
- Some improvements of audio engine.
- Built-in description has been updated.
- Minor bugs were fixed. 1.1 10/20/2021 1.0 10/11/2021