AUD-1 pushes the boundaries of assistive listening software on the iOS platform. The app is designed to intelligently modulate the loudness of the sonic environment for the hearing-impaired user. The app processes sound received by the microphone in real-time, then delivers the processed sound via headphones. AUD-1 is based on the research-driven BioAid signal processing algorithm, to provide enhancements in both listener comfort and sound clarity. The app is highly customizable, giving the user fine-grained, yet intuitive control over the sound shaping options.

AUD-1 features:
* Dual algorithm technology, allowing settings for each ear to be adjusted independently.
* Advanced connectivity options, allowing use of high quality audio peripherals to improve sound quality.
* Stereo linkage technology to preserve spatial cues when the app is used with stereo input hardware.
* Fine grain control over the dynamic range of the processed sound.
* Targeted optimization for extremely low processing delay.
* Automatic storage of preferred settings, even if the device runs out of power.
* Adjustable input and output gain controls to fully utilize the dynamic range of the device.
* Detection of accidental removal of headphones, preventing annoying feedback in public places.
* Latency testing utilities.

What's New

Version 1.0.2

- Now works on iOS 9

Ratings and Reviews

Wish this worked


Seems like a good idea, and should work but, alas.....
Buggy interface, turns off unexpectedly, has a play button which apparently is merely decorative, and really subpar instructions. Not well designed.



So far a complete waste of money.
No directions on how to us the app. Latency test, could not get it to work (What volume control?). Watching TV, audio lags the input, very annoying. Audio is very tinny, again very annoying.

I am using LG 730 Bluetooth headset.

Not working app

Noiseless in boston

iOS 9.3.1
iPhone 6

Installed a copy on each of 2 phones , sender and receiver.

One phone was functional the other phone would crash whenever I would try to open app

I rebooted and reinstalled the app with no change

I emailed the developer and got no response

And what a pain trying to get my money back

I would love a solution to improving my hearing
Any suggestions


Nicholas Clark
7.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 12+ for the following:
Infrequent/Mild Medical/Treatment Information
© 2013 Nick Clark


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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