# Spatial Release

> Spatial Release (iPhone/iPad app by University of California Riverside.)

- Source: https://appshunter.io/ios/app/spatial-release/id969719455 (this page in markdown: same URL + `.md`)
- Developer: [University of California Riverside](https://appshunter.io/developer/888130363)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 7.0 · 163 MB
- Languages: English
- Released: 2015-03-04
- Data updated: 2025-05-21
- User reviews in markdown: https://appshunter.io/ios/app/spatial-release/id969719455/reviews.md

## What is Spatial Release?

Spatial Release is a novel hearing assessment designed to address symptoms of auditory dysfunction related to hearing in noisy environments; in particular understanding  a talker in an environment populated by other talkers. This procedure is based upon a speaker-on-speaker task developed by Gallun et al (Frontiers in Neuroscience, 2013) and can measure auditory thresholds for speech alone, speech in the presence of other talkers and the exert to which spatial auditory cues can rescue speech comprehensibility in the presence of other talkers.

Studies using this task have shown that it can dissociate effects of age from those of hearing loss:

Gallun, F. J., A. C. Diedesch, S. D. Kampel and K. M. Jakien (2013). "Independent impacts of age and hearing loss on spatial release in a complex auditory environment." Front Neurosci 7: 252.

The task was designed by Frederick J. Gallun at the National Center for Rehabilitative Auditory Research and the program is a production of the  University of California Riverside (UCR) Brain Game Center, a research unit focused on brain fitness methods and applications.


## Version history (last 5 releases)

### 3.2.1 — 2018-05-04

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

Changed initial algorithms for Separated and Colocated to Progressive.
Changed initial sensation level to 30dB.

### 3.2.0 — 2017-09-23

Addition of Subject Mode
Update to default calibration profile

### 3.1.0 — 2017-08-03

Fixed an issue causing test interruptions for some users.

### 3.0.0 — 2017-04-28

On-the-fly spatialization
Rebuilt UI
Expanded logging and functionality

### 2.1.0 — 2016-01-21

Summary Page now Available!
Updated Results Page!
Calibration and Admin Settings Update!

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## More apps by University of California Riverside

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All apps by University of California Riverside: https://appshunter.io/developer/888130363

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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 2025-05-21.*